wc-formatting-functions.php — WooCommerce 5.4.0

woocommerce / includes / wc-formatting-functions.php

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wc-formatting-functions.php

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1	<?php
2	/**
3	* WooCommerce Formatting
4	*
5	* Functions for formatting data.
6	*
7	* @package WooCommerce\Functions
8	* @version 2.1.0
9	*/
10
11	use Automattic\WooCommerce\Utilities\NumberUtil;
12
13	defined( 'ABSPATH' ) \|\| exit;
14
15	/**
16	* Converts a string (e.g. 'yes' or 'no') to a bool.
17	*
18	* @since 3.0.0
19	* @param string\|bool $string String to convert. If a bool is passed it will be returned as-is.
20	* @return bool
21	*/
22	function wc_string_to_bool( $string ) {
23	return is_bool( $string ) ? $string : ( 'yes' === strtolower( $string ) \|\| 1 === $string \|\| 'true' === strtolower( $string ) \|\| '1' === $string );
24	}
25
26	/**
27	* Converts a bool to a 'yes' or 'no'.
28	*
29	* @since 3.0.0
30	* @param bool\|string $bool Bool to convert. If a string is passed it will first be converted to a bool.
31	* @return string
32	*/
33	function wc_bool_to_string( $bool ) {
34	if ( ! is_bool( $bool ) ) {
35	$bool = wc_string_to_bool( $bool );
36	}
37	return true === $bool ? 'yes' : 'no';
38	}
39
40	/**
41	* Explode a string into an array by $delimiter and remove empty values.
42	*
43	* @since 3.0.0
44	* @param string $string String to convert.
45	* @param string $delimiter Delimiter, defaults to ','.
46	* @return array
47	*/
48	function wc_string_to_array( $string, $delimiter = ',' ) {
49	return is_array( $string ) ? $string : array_filter( explode( $delimiter, $string ) );
50	}
51
52	/**
53	* Sanitize taxonomy names. Slug format (no spaces, lowercase).
54	* Urldecode is used to reverse munging of UTF8 characters.
55	*
56	* @param string $taxonomy Taxonomy name.
57	* @return string
58	*/
59	function wc_sanitize_taxonomy_name( $taxonomy ) {
60	return apply_filters( 'sanitize_taxonomy_name', urldecode( sanitize_title( urldecode( $taxonomy ) ) ), $taxonomy );
61	}
62
63	/**
64	* Sanitize permalink values before insertion into DB.
65	*
66	* Cannot use wc_clean because it sometimes strips % chars and breaks the user's setting.
67	*
68	* @since 2.6.0
69	* @param string $value Permalink.
70	* @return string
71	*/
72	function wc_sanitize_permalink( $value ) {
73	global $wpdb;
74
75	$value = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $value );
76
77	if ( is_wp_error( $value ) ) {
78	$value = '';
79	}
80
81	$value = esc_url_raw( trim( $value ) );
82	$value = str_replace( 'http://', '', $value );
83	return untrailingslashit( $value );
84	}
85
86	/**
87	* Gets the filename part of a download URL.
88	*
89	* @param string $file_url File URL.
90	* @return string
91	*/
92	function wc_get_filename_from_url( $file_url ) {
93	$parts = wp_parse_url( $file_url );
94	if ( isset( $parts['path'] ) ) {
95	return basename( $parts['path'] );
96	}
97	}
98
99	/**
100	* Normalise dimensions, unify to cm then convert to wanted unit value.
101	*
102	* Usage:
103	* wc_get_dimension( 55, 'in' );
104	* wc_get_dimension( 55, 'in', 'm' );
105	*
106	* @param int\|float $dimension Dimension.
107	* @param string $to_unit Unit to convert to.
108	* Options: 'in', 'm', 'cm', 'm'.
109	* @param string $from_unit Unit to convert from.
110	* Defaults to ''.
111	* Options: 'in', 'm', 'cm', 'm'.
112	* @return float
113	*/
114	function wc_get_dimension( $dimension, $to_unit, $from_unit = '' ) {
115	$to_unit = strtolower( $to_unit );
116
117	if ( empty( $from_unit ) ) {
118	$from_unit = strtolower( get_option( 'woocommerce_dimension_unit' ) );
119	}
120
121	// Unify all units to cm first.
122	if ( $from_unit !== $to_unit ) {
123	switch ( $from_unit ) {
124	case 'in':
125	$dimension *= 2.54;
126	break;
127	case 'm':
128	$dimension *= 100;
129	break;
130	case 'mm':
131	$dimension *= 0.1;
132	break;
133	case 'yd':
134	$dimension *= 91.44;
135	break;
136	}
137
138	// Output desired unit.
139	switch ( $to_unit ) {
140	case 'in':
141	$dimension *= 0.3937;
142	break;
143	case 'm':
144	$dimension *= 0.01;
145	break;
146	case 'mm':
147	$dimension *= 10;
148	break;
149	case 'yd':
150	$dimension *= 0.010936133;
151	break;
152	}
153	}
154
155	return ( $dimension < 0 ) ? 0 : $dimension;
156	}
157
158	/**
159	* Normalise weights, unify to kg then convert to wanted unit value.
160	*
161	* Usage:
162	* wc_get_weight(55, 'kg');
163	* wc_get_weight(55, 'kg', 'lbs');
164	*
165	* @param int\|float $weight Weight.
166	* @param string $to_unit Unit to convert to.
167	* Options: 'g', 'kg', 'lbs', 'oz'.
168	* @param string $from_unit Unit to convert from.
169	* Defaults to ''.
170	* Options: 'g', 'kg', 'lbs', 'oz'.
171	* @return float
172	*/
173	function wc_get_weight( $weight, $to_unit, $from_unit = '' ) {
174	$weight = (float) $weight;
175	$to_unit = strtolower( $to_unit );
176
177	if ( empty( $from_unit ) ) {
178	$from_unit = strtolower( get_option( 'woocommerce_weight_unit' ) );
179	}
180
181	// Unify all units to kg first.
182	if ( $from_unit !== $to_unit ) {
183	switch ( $from_unit ) {
184	case 'g':
185	$weight *= 0.001;
186	break;
187	case 'lbs':
188	$weight *= 0.453592;
189	break;
190	case 'oz':
191	$weight *= 0.0283495;
192	break;
193	}
194
195	// Output desired unit.
196	switch ( $to_unit ) {
197	case 'g':
198	$weight *= 1000;
199	break;
200	case 'lbs':
201	$weight *= 2.20462;
202	break;
203	case 'oz':
204	$weight *= 35.274;
205	break;
206	}
207	}
208
209	return ( $weight < 0 ) ? 0 : $weight;
210	}
211
212	/**
213	* Trim trailing zeros off prices.
214	*
215	* @param string\|float\|int $price Price.
216	* @return string
217	*/
218	function wc_trim_zeros( $price ) {
219	return preg_replace( '/' . preg_quote( wc_get_price_decimal_separator(), '/' ) . '0++$/', '', $price );
220	}
221
222	/**
223	* Round a tax amount.
224	*
225	* @param double $value Amount to round.
226	* @param int $precision DP to round. Defaults to wc_get_price_decimals.
227	* @return float
228	*/
229	function wc_round_tax_total( $value, $precision = null ) {
230	$precision = is_null( $precision ) ? wc_get_price_decimals() : intval( $precision );
231
232	if ( version_compare( PHP_VERSION, '5.3.0', '>=' ) ) {
233	$rounded_tax = NumberUtil::round( $value, $precision, wc_get_tax_rounding_mode() ); // phpcs:ignore PHPCompatibility.FunctionUse.NewFunctionParameters.round_modeFound
234	} elseif ( 2 === wc_get_tax_rounding_mode() ) {
235	$rounded_tax = wc_legacy_round_half_down( $value, $precision );
236	} else {
237	$rounded_tax = NumberUtil::round( $value, $precision );
238	}
239
240	return apply_filters( 'wc_round_tax_total', $rounded_tax, $value, $precision, WC_TAX_ROUNDING_MODE );
241	}
242
243	/**
244	* Round half down in PHP 5.2.
245	*
246	* @since 3.2.6
247	* @param float $value Value to round.
248	* @param int $precision Precision to round down to.
249	* @return float
250	*/
251	function wc_legacy_round_half_down( $value, $precision ) {
252	$value = wc_float_to_string( $value );
253
254	if ( false !== strstr( $value, '.' ) ) {
255	$value = explode( '.', $value );
256
257	if ( strlen( $value[1] ) > $precision && substr( $value[1], -1 ) === '5' ) {
258	$value[1] = substr( $value[1], 0, -1 ) . '4';
259	}
260
261	$value = implode( '.', $value );
262	}
263
264	return NumberUtil::round( floatval( $value ), $precision );
265	}
266
267	/**
268	* Make a refund total negative.
269	*
270	* @param float $amount Refunded amount.
271	*
272	* @return float
273	*/
274	function wc_format_refund_total( $amount ) {
275	return $amount * -1;
276	}
277
278	/**
279	* Format decimal numbers ready for DB storage.
280	*
281	* Sanitize, remove decimals, and optionally round + trim off zeros.
282	*
283	* This function does not remove thousands - this should be done before passing a value to the function.
284	*
285	* @param float\|string $number Expects either a float or a string with a decimal separator only (no thousands).
286	* @param mixed $dp number Number of decimal points to use, blank to use woocommerce_price_num_decimals, or false to avoid all rounding.
287	* @param bool $trim_zeros From end of string.
288	* @return string
289	*/
290	function wc_format_decimal( $number, $dp = false, $trim_zeros = false ) {
291	$locale = localeconv();
292	$decimals = array( wc_get_price_decimal_separator(), $locale['decimal_point'], $locale['mon_decimal_point'] );
293
294	// Remove locale from string.
295	if ( ! is_float( $number ) ) {
296	$number = str_replace( $decimals, '.', $number );
297
298	// Convert multiple dots to just one.
299	$number = preg_replace( '/\.(?![^.]+$)\|[^0-9.-]/', '', wc_clean( $number ) );
300	}
301
302	if ( false !== $dp ) {
303	$dp = intval( '' === $dp ? wc_get_price_decimals() : $dp );
304	$number = number_format( floatval( $number ), $dp, '.', '' );
305	} elseif ( is_float( $number ) ) {
306	// DP is false - don't use number format, just return a string using whatever is given. Remove scientific notation using sprintf.
307	$number = str_replace( $decimals, '.', sprintf( '%.' . wc_get_rounding_precision() . 'f', $number ) );
308	// We already had a float, so trailing zeros are not needed.
309	$trim_zeros = true;
310	}
311
312	if ( $trim_zeros && strstr( $number, '.' ) ) {
313	$number = rtrim( rtrim( $number, '0' ), '.' );
314	}
315
316	return $number;
317	}
318
319	/**
320	* Convert a float to a string without locale formatting which PHP adds when changing floats to strings.
321	*
322	* @param float $float Float value to format.
323	* @return string
324	*/
325	function wc_float_to_string( $float ) {
326	if ( ! is_float( $float ) ) {
327	return $float;
328	}
329
330	$locale = localeconv();
331	$string = strval( $float );
332	$string = str_replace( $locale['decimal_point'], '.', $string );
333
334	return $string;
335	}
336
337	/**
338	* Format a price with WC Currency Locale settings.
339	*
340	* @param string $value Price to localize.
341	* @return string
342	*/
343	function wc_format_localized_price( $value ) {
344	return apply_filters( 'woocommerce_format_localized_price', str_replace( '.', wc_get_price_decimal_separator(), strval( $value ) ), $value );
345	}
346
347	/**
348	* Format a decimal with PHP Locale settings.
349	*
350	* @param string $value Decimal to localize.
351	* @return string
352	*/
353	function wc_format_localized_decimal( $value ) {
354	$locale = localeconv();
355	return apply_filters( 'woocommerce_format_localized_decimal', str_replace( '.', $locale['decimal_point'], strval( $value ) ), $value );
356	}
357
358	/**
359	* Format a coupon code.
360	*
361	* @since 3.0.0
362	* @param string $value Coupon code to format.
363	* @return string
364	*/
365	function wc_format_coupon_code( $value ) {
366	return apply_filters( 'woocommerce_coupon_code', $value );
367	}
368
369	/**
370	* Sanitize a coupon code.
371	*
372	* Uses sanitize_post_field since coupon codes are stored as
373	* post_titles - the sanitization and escaping must match.
374	*
375	* @since 3.6.0
376	* @param string $value Coupon code to format.
377	* @return string
378	*/
379	function wc_sanitize_coupon_code( $value ) {
380	return wp_filter_kses( sanitize_post_field( 'post_title', $value, 0, 'db' ) );
381	}
382
383	/**
384	* Clean variables using sanitize_text_field. Arrays are cleaned recursively.
385	* Non-scalar values are ignored.
386	*
387	* @param string\|array $var Data to sanitize.
388	* @return string\|array
389	*/
390	function wc_clean( $var ) {
391	if ( is_array( $var ) ) {
392	return array_map( 'wc_clean', $var );
393	} else {
394	return is_scalar( $var ) ? sanitize_text_field( $var ) : $var;
395	}
396	}
397
398	/**
399	* Function wp_check_invalid_utf8 with recursive array support.
400	*
401	* @param string\|array $var Data to sanitize.
402	* @return string\|array
403	*/
404	function wc_check_invalid_utf8( $var ) {
405	if ( is_array( $var ) ) {
406	return array_map( 'wc_check_invalid_utf8', $var );
407	} else {
408	return wp_check_invalid_utf8( $var );
409	}
410	}
411
412	/**
413	* Run wc_clean over posted textarea but maintain line breaks.
414	*
415	* @since 3.0.0
416	* @param string $var Data to sanitize.
417	* @return string
418	*/
419	function wc_sanitize_textarea( $var ) {
420	return implode( "\n", array_map( 'wc_clean', explode( "\n", $var ) ) );
421	}
422
423	/**
424	* Sanitize a string destined to be a tooltip.
425	*
426	* @since 2.3.10 Tooltips are encoded with htmlspecialchars to prevent XSS. Should not be used in conjunction with esc_attr()
427	* @param string $var Data to sanitize.
428	* @return string
429	*/
430	function wc_sanitize_tooltip( $var ) {
431	return htmlspecialchars(
432	wp_kses(
433	html_entity_decode( $var ),
434	array(
435	'br' => array(),
436	'em' => array(),
437	'strong' => array(),
438	'small' => array(),
439	'span' => array(),
440	'ul' => array(),
441	'li' => array(),
442	'ol' => array(),
443	'p' => array(),
444	)
445	)
446	);
447	}
448
449	/**
450	* Merge two arrays.
451	*
452	* @param array $a1 First array to merge.
453	* @param array $a2 Second array to merge.
454	* @return array
455	*/
456	function wc_array_overlay( $a1, $a2 ) {
457	foreach ( $a1 as $k => $v ) {
458	if ( ! array_key_exists( $k, $a2 ) ) {
459	continue;
460	}
461	if ( is_array( $v ) && is_array( $a2[ $k ] ) ) {
462	$a1[ $k ] = wc_array_overlay( $v, $a2[ $k ] );
463	} else {
464	$a1[ $k ] = $a2[ $k ];
465	}
466	}
467	return $a1;
468	}
469
470	/**
471	* Formats a stock amount by running it through a filter.
472	*
473	* @param int\|float $amount Stock amount.
474	* @return int\|float
475	*/
476	function wc_stock_amount( $amount ) {
477	return apply_filters( 'woocommerce_stock_amount', $amount );
478	}
479
480	/**
481	* Get the price format depending on the currency position.
482	*
483	* @return string
484	*/
485	function get_woocommerce_price_format() {
486	$currency_pos = get_option( 'woocommerce_currency_pos' );
487	$format = '%1$s%2$s';
488
489	switch ( $currency_pos ) {
490	case 'left':
491	$format = '%1$s%2$s';
492	break;
493	case 'right':
494	$format = '%2$s%1$s';
495	break;
496	case 'left_space':
497	$format = '%1$s %2$s';
498	break;
499	case 'right_space':
500	$format = '%2$s %1$s';
501	break;
502	}
503
504	return apply_filters( 'woocommerce_price_format', $format, $currency_pos );
505	}
506
507	/**
508	* Return the thousand separator for prices.
509	*
510	* @since 2.3
511	* @return string
512	*/
513	function wc_get_price_thousand_separator() {
514	return stripslashes( apply_filters( 'wc_get_price_thousand_separator', get_option( 'woocommerce_price_thousand_sep' ) ) );
515	}
516
517	/**
518	* Return the decimal separator for prices.
519	*
520	* @since 2.3
521	* @return string
522	*/
523	function wc_get_price_decimal_separator() {
524	$separator = apply_filters( 'wc_get_price_decimal_separator', get_option( 'woocommerce_price_decimal_sep' ) );
525	return $separator ? stripslashes( $separator ) : '.';
526	}
527
528	/**
529	* Return the number of decimals after the decimal point.
530	*
531	* @since 2.3
532	* @return int
533	*/
534	function wc_get_price_decimals() {
535	return absint( apply_filters( 'wc_get_price_decimals', get_option( 'woocommerce_price_num_decimals', 2 ) ) );
536	}
537
538	/**
539	* Format the price with a currency symbol.
540	*
541	* @param float $price Raw price.
542	* @param array $args Arguments to format a price {
543	* Array of arguments.
544	* Defaults to empty array.
545	*
546	* @type bool $ex_tax_label Adds exclude tax label.
547	* Defaults to false.
548	* @type string $currency Currency code.
549	* Defaults to empty string (Use the result from get_woocommerce_currency()).
550	* @type string $decimal_separator Decimal separator.
551	* Defaults the result of wc_get_price_decimal_separator().
552	* @type string $thousand_separator Thousand separator.
553	* Defaults the result of wc_get_price_thousand_separator().
554	* @type string $decimals Number of decimals.
555	* Defaults the result of wc_get_price_decimals().
556	* @type string $price_format Price format depending on the currency position.
557	* Defaults the result of get_woocommerce_price_format().
558	* }
559	* @return string
560	*/
561	function wc_price( $price, $args = array() ) {
562	$args = apply_filters(
563	'wc_price_args',
564	wp_parse_args(
565	$args,
566	array(
567	'ex_tax_label' => false,
568	'currency' => '',
569	'decimal_separator' => wc_get_price_decimal_separator(),
570	'thousand_separator' => wc_get_price_thousand_separator(),
571	'decimals' => wc_get_price_decimals(),
572	'price_format' => get_woocommerce_price_format(),
573	)
574	)
575	);
576
577	$original_price = $price;
578
579	// Convert to float to avoid issues on PHP 8.
580	$price = (float) $price;
581
582	$unformatted_price = $price;
583	$negative = $price < 0;
584
585	/**
586	* Filter raw price.
587	*
588	* @param float $raw_price Raw price.
589	* @param float\|string $original_price Original price as float, or empty string. Since 5.0.0.
590	*/
591	$price = apply_filters( 'raw_woocommerce_price', $negative ? $price * -1 : $price, $original_price );
592
593	/**
594	* Filter formatted price.
595	*
596	* @param float $formatted_price Formatted price.
597	* @param float $price Unformatted price.
598	* @param int $decimals Number of decimals.
599	* @param string $decimal_separator Decimal separator.
600	* @param string $thousand_separator Thousand separator.
601	* @param float\|string $original_price Original price as float, or empty string. Since 5.0.0.
602	*/
603	$price = apply_filters( 'formatted_woocommerce_price', number_format( $price, $args['decimals'], $args['decimal_separator'], $args['thousand_separator'] ), $price, $args['decimals'], $args['decimal_separator'], $args['thousand_separator'], $original_price );
604
605	if ( apply_filters( 'woocommerce_price_trim_zeros', false ) && $args['decimals'] > 0 ) {
606	$price = wc_trim_zeros( $price );
607	}
608
609	$formatted_price = ( $negative ? '-' : '' ) . sprintf( $args['price_format'], '<span class="woocommerce-Price-currencySymbol">' . get_woocommerce_currency_symbol( $args['currency'] ) . '</span>', $price );
610	$return = '<span class="woocommerce-Price-amount amount"><bdi>' . $formatted_price . '</bdi></span>';
611
612	if ( $args['ex_tax_label'] && wc_tax_enabled() ) {
613	$return .= ' <small class="woocommerce-Price-taxLabel tax_label">' . WC()->countries->ex_tax_or_vat() . '</small>';
614	}
615
616	/**
617	* Filters the string of price markup.
618	*
619	* @param string $return Price HTML markup.
620	* @param string $price Formatted price.
621	* @param array $args Pass on the args.
622	* @param float $unformatted_price Price as float to allow plugins custom formatting. Since 3.2.0.
623	* @param float\|string $original_price Original price as float, or empty string. Since 5.0.0.
624	*/
625	return apply_filters( 'wc_price', $return, $price, $args, $unformatted_price, $original_price );
626	}
627
628	/**
629	* Notation to numbers.
630	*
631	* This function transforms the php.ini notation for numbers (like '2M') to an integer.
632	*
633	* @param string $size Size value.
634	* @return int
635	*/
636	function wc_let_to_num( $size ) {
637	$l = substr( $size, -1 );
638	$ret = (int) substr( $size, 0, -1 );
639	switch ( strtoupper( $l ) ) {
640	case 'P':
641	$ret *= 1024;
642	// No break.
643	case 'T':
644	$ret *= 1024;
645	// No break.
646	case 'G':
647	$ret *= 1024;
648	// No break.
649	case 'M':
650	$ret *= 1024;
651	// No break.
652	case 'K':
653	$ret *= 1024;
654	// No break.
655	}
656	return $ret;
657	}
658
659	/**
660	* WooCommerce Date Format - Allows to change date format for everything WooCommerce.
661	*
662	* @return string
663	*/
664	function wc_date_format() {
665	$date_format = get_option( 'date_format' );
666	if ( empty( $date_format ) ) {
667	// Return default date format if the option is empty.
668	$date_format = 'F j, Y';
669	}
670	return apply_filters( 'woocommerce_date_format', $date_format );
671	}
672
673	/**
674	* WooCommerce Time Format - Allows to change time format for everything WooCommerce.
675	*
676	* @return string
677	*/
678	function wc_time_format() {
679	$time_format = get_option( 'time_format' );
680	if ( empty( $time_format ) ) {
681	// Return default time format if the option is empty.
682	$time_format = 'g:i a';
683	}
684	return apply_filters( 'woocommerce_time_format', $time_format );
685	}
686
687	/**
688	* Convert mysql datetime to PHP timestamp, forcing UTC. Wrapper for strtotime.
689	*
690	* Based on wcs_strtotime_dark_knight() from WC Subscriptions by Prospress.
691	*
692	* @since 3.0.0
693	* @param string $time_string Time string.
694	* @param int\|null $from_timestamp Timestamp to convert from.
695	* @return int
696	*/
697	function wc_string_to_timestamp( $time_string, $from_timestamp = null ) {
698	$original_timezone = date_default_timezone_get();
699
700	// @codingStandardsIgnoreStart
701	date_default_timezone_set( 'UTC' );
702
703	if ( null === $from_timestamp ) {
704	$next_timestamp = strtotime( $time_string );
705	} else {
706	$next_timestamp = strtotime( $time_string, $from_timestamp );
707	}
708
709	date_default_timezone_set( $original_timezone );
710	// @codingStandardsIgnoreEnd
711
712	return $next_timestamp;
713	}
714
715	/**
716	* Convert a date string to a WC_DateTime.
717	*
718	* @since 3.1.0
719	* @param string $time_string Time string.
720	* @return WC_DateTime
721	*/
722	function wc_string_to_datetime( $time_string ) {
723	// Strings are defined in local WP timezone. Convert to UTC.
724	if ( 1 === preg_match( '/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})(Z\|((-\|\+)\d{2}:\d{2}))$/', $time_string, $date_bits ) ) {
725	$offset = ! empty( $date_bits[7] ) ? iso8601_timezone_to_offset( $date_bits[7] ) : wc_timezone_offset();
726	$timestamp = gmmktime( $date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1] ) - $offset;
727	} else {
728	$timestamp = wc_string_to_timestamp( get_gmt_from_date( gmdate( 'Y-m-d H:i:s', wc_string_to_timestamp( $time_string ) ) ) );
729	}
730	$datetime = new WC_DateTime( "@{$timestamp}", new DateTimeZone( 'UTC' ) );
731
732	// Set local timezone or offset.
733	if ( get_option( 'timezone_string' ) ) {
734	$datetime->setTimezone( new DateTimeZone( wc_timezone_string() ) );
735	} else {
736	$datetime->set_utc_offset( wc_timezone_offset() );
737	}
738
739	return $datetime;
740	}
741
742	/**
743	* WooCommerce Timezone - helper to retrieve the timezone string for a site until.
744	* a WP core method exists (see https://core.trac.wordpress.org/ticket/24730).
745	*
746	* Adapted from https://secure.php.net/manual/en/function.timezone-name-from-abbr.php#89155.
747	*
748	* @since 2.1
749	* @return string PHP timezone string for the site
750	*/
751	function wc_timezone_string() {
752	// Added in WordPress 5.3 Ref https://developer.wordpress.org/reference/functions/wp_timezone_string/.
753	if ( function_exists( 'wp_timezone_string' ) ) {
754	return wp_timezone_string();
755	}
756
757	// If site timezone string exists, return it.
758	$timezone = get_option( 'timezone_string' );
759	if ( $timezone ) {
760	return $timezone;
761	}
762
763	// Get UTC offset, if it isn't set then return UTC.
764	$utc_offset = floatval( get_option( 'gmt_offset', 0 ) );
765	if ( ! is_numeric( $utc_offset ) \|\| 0.0 === $utc_offset ) {
766	return 'UTC';
767	}
768
769	// Adjust UTC offset from hours to seconds.
770	$utc_offset = (int) ( $utc_offset * 3600 );
771
772	// Attempt to guess the timezone string from the UTC offset.
773	$timezone = timezone_name_from_abbr( '', $utc_offset );
774	if ( $timezone ) {
775	return $timezone;
776	}
777
778	// Last try, guess timezone string manually.
779	foreach ( timezone_abbreviations_list() as $abbr ) {
780	foreach ( $abbr as $city ) {
781	// WordPress restrict the use of date(), since it's affected by timezone settings, but in this case is just what we need to guess the correct timezone.
782	if ( (bool) date( 'I' ) === (bool) $city['dst'] && $city['timezone_id'] && intval( $city['offset'] ) === $utc_offset ) { // phpcs:ignore WordPress.DateTime.RestrictedFunctions.date_date
783	return $city['timezone_id'];
784	}
785	}
786	}
787
788	// Fallback to UTC.
789	return 'UTC';
790	}
791
792	/**
793	* Get timezone offset in seconds.
794	*
795	* @since 3.0.0
796	* @return float
797	*/
798	function wc_timezone_offset() {
799	$timezone = get_option( 'timezone_string' );
800
801	if ( $timezone ) {
802	$timezone_object = new DateTimeZone( $timezone );
803	return $timezone_object->getOffset( new DateTime( 'now' ) );
804	} else {
805	return floatval( get_option( 'gmt_offset', 0 ) ) * HOUR_IN_SECONDS;
806	}
807	}
808
809	/**
810	* Callback which can flatten post meta (gets the first value if it's an array).
811	*
812	* @since 3.0.0
813	* @param array $value Value to flatten.
814	* @return mixed
815	*/
816	function wc_flatten_meta_callback( $value ) {
817	return is_array( $value ) ? current( $value ) : $value;
818	}
819
820	if ( ! function_exists( 'wc_rgb_from_hex' ) ) {
821
822	/**
823	* Convert RGB to HEX.
824	*
825	* @param mixed $color Color.
826	*
827	* @return array
828	*/
829	function wc_rgb_from_hex( $color ) {
830	$color = str_replace( '#', '', $color );
831	// Convert shorthand colors to full format, e.g. "FFF" -> "FFFFFF".
832	$color = preg_replace( '~^(.)(.)(.)$~', '$1$1$2$2$3$3', $color );
833
834	$rgb = array();
835	$rgb['R'] = hexdec( $color[0] . $color[1] );
836	$rgb['G'] = hexdec( $color[2] . $color[3] );
837	$rgb['B'] = hexdec( $color[4] . $color[5] );
838
839	return $rgb;
840	}
841	}
842
843	if ( ! function_exists( 'wc_hex_darker' ) ) {
844
845	/**
846	* Make HEX color darker.
847	*
848	* @param mixed $color Color.
849	* @param int $factor Darker factor.
850	* Defaults to 30.
851	* @return string
852	*/
853	function wc_hex_darker( $color, $factor = 30 ) {
854	$base = wc_rgb_from_hex( $color );
855	$color = '#';
856
857	foreach ( $base as $k => $v ) {
858	$amount = $v / 100;
859	$amount = NumberUtil::round( $amount * $factor );
860	$new_decimal = $v - $amount;
861
862	$new_hex_component = dechex( $new_decimal );
863	if ( strlen( $new_hex_component ) < 2 ) {
864	$new_hex_component = '0' . $new_hex_component;
865	}
866	$color .= $new_hex_component;
867	}
868
869	return $color;
870	}
871	}
872
873	if ( ! function_exists( 'wc_hex_lighter' ) ) {
874
875	/**
876	* Make HEX color lighter.
877	*
878	* @param mixed $color Color.
879	* @param int $factor Lighter factor.
880	* Defaults to 30.
881	* @return string
882	*/
883	function wc_hex_lighter( $color, $factor = 30 ) {
884	$base = wc_rgb_from_hex( $color );
885	$color = '#';
886
887	foreach ( $base as $k => $v ) {
888	$amount = 255 - $v;
889	$amount = $amount / 100;
890	$amount = NumberUtil::round( $amount * $factor );
891	$new_decimal = $v + $amount;
892
893	$new_hex_component = dechex( $new_decimal );
894	if ( strlen( $new_hex_component ) < 2 ) {
895	$new_hex_component = '0' . $new_hex_component;
896	}
897	$color .= $new_hex_component;
898	}
899
900	return $color;
901	}
902	}
903
904	if ( ! function_exists( 'wc_hex_is_light' ) ) {
905
906	/**
907	* Determine whether a hex color is light.
908	*
909	* @param mixed $color Color.
910	* @return bool True if a light color.
911	*/
912	function wc_hex_is_light( $color ) {
913	$hex = str_replace( '#', '', $color );
914
915	$c_r = hexdec( substr( $hex, 0, 2 ) );
916	$c_g = hexdec( substr( $hex, 2, 2 ) );
917	$c_b = hexdec( substr( $hex, 4, 2 ) );
918
919	$brightness = ( ( $c_r * 299 ) + ( $c_g * 587 ) + ( $c_b * 114 ) ) / 1000;
920
921	return $brightness > 155;
922	}
923	}
924
925	if ( ! function_exists( 'wc_light_or_dark' ) ) {
926
927	/**
928	* Detect if we should use a light or dark color on a background color.
929	*
930	* @param mixed $color Color.
931	* @param string $dark Darkest reference.
932	* Defaults to '#000000'.
933	* @param string $light Lightest reference.
934	* Defaults to '#FFFFFF'.
935	* @return string
936	*/
937	function wc_light_or_dark( $color, $dark = '#000000', $light = '#FFFFFF' ) {
938	return wc_hex_is_light( $color ) ? $dark : $light;
939	}
940	}
941
942	if ( ! function_exists( 'wc_format_hex' ) ) {
943
944	/**
945	* Format string as hex.
946	*
947	* @param string $hex HEX color.
948	* @return string\|null
949	*/
950	function wc_format_hex( $hex ) {
951	$hex = trim( str_replace( '#', '', $hex ) );
952
953	if ( strlen( $hex ) === 3 ) {
954	$hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
955	}
956
957	return $hex ? '#' . $hex : null;
958	}
959	}
960
961	/**
962	* Format the postcode according to the country and length of the postcode.
963	*
964	* @param string $postcode Unformatted postcode.
965	* @param string $country Base country.
966	* @return string
967	*/
968	function wc_format_postcode( $postcode, $country ) {
969	$postcode = wc_normalize_postcode( $postcode );
970
971	switch ( $country ) {
972	case 'CA':
973	case 'GB':
974	$postcode = substr_replace( $postcode, ' ', -3, 0 );
975	break;
976	case 'IE':
977	$postcode = substr_replace( $postcode, ' ', 3, 0 );
978	break;
979	case 'BR':
980	case 'PL':
981	$postcode = substr_replace( $postcode, '-', -3, 0 );
982	break;
983	case 'JP':
984	$postcode = substr_replace( $postcode, '-', 3, 0 );
985	break;
986	case 'PT':
987	$postcode = substr_replace( $postcode, '-', 4, 0 );
988	break;
989	case 'PR':
990	case 'US':
991	$postcode = rtrim( substr_replace( $postcode, '-', 5, 0 ), '-' );
992	break;
993	case 'NL':
994	$postcode = substr_replace( $postcode, ' ', 4, 0 );
995	break;
996	}
997
998	return apply_filters( 'woocommerce_format_postcode', trim( $postcode ), $country );
999	}
1000
1001	/**
1002	* Normalize postcodes.
1003	*
1004	* Remove spaces and convert characters to uppercase.
1005	*
1006	* @since 2.6.0
1007	* @param string $postcode Postcode.
1008	* @return string
1009	*/
1010	function wc_normalize_postcode( $postcode ) {
1011	return preg_replace( '/[\s\-]/', '', trim( wc_strtoupper( $postcode ) ) );
1012	}
1013
1014	/**
1015	* Format phone numbers.
1016	*
1017	* @param string $phone Phone number.
1018	* @return string
1019	*/
1020	function wc_format_phone_number( $phone ) {
1021	if ( ! WC_Validation::is_phone( $phone ) ) {
1022	return '';
1023	}
1024	return preg_replace( '/[^0-9\+\-\s]/', '-', preg_replace( '/[\x00-\x1F\x7F-\xFF]/', '', $phone ) );
1025	}
1026
1027	/**
1028	* Sanitize phone number.
1029	* Allows only numbers and "+" (plus sign).
1030	*
1031	* @since 3.6.0
1032	* @param string $phone Phone number.
1033	* @return string
1034	*/
1035	function wc_sanitize_phone_number( $phone ) {
1036	return preg_replace( '/[^\d+]/', '', $phone );
1037	}
1038
1039	/**
1040	* Wrapper for mb_strtoupper which see's if supported first.
1041	*
1042	* @since 3.1.0
1043	* @param string $string String to format.
1044	* @return string
1045	*/
1046	function wc_strtoupper( $string ) {
1047	return function_exists( 'mb_strtoupper' ) ? mb_strtoupper( $string ) : strtoupper( $string );
1048	}
1049
1050	/**
1051	* Make a string lowercase.
1052	* Try to use mb_strtolower() when available.
1053	*
1054	* @since 2.3
1055	* @param string $string String to format.
1056	* @return string
1057	*/
1058	function wc_strtolower( $string ) {
1059	return function_exists( 'mb_strtolower' ) ? mb_strtolower( $string ) : strtolower( $string );
1060	}
1061
1062	/**
1063	* Trim a string and append a suffix.
1064	*
1065	* @param string $string String to trim.
1066	* @param integer $chars Amount of characters.
1067	* Defaults to 200.
1068	* @param string $suffix Suffix.
1069	* Defaults to '...'.
1070	* @return string
1071	*/
1072	function wc_trim_string( $string, $chars = 200, $suffix = '...' ) {
1073	if ( strlen( $string ) > $chars ) {
1074	if ( function_exists( 'mb_substr' ) ) {
1075	$string = mb_substr( $string, 0, ( $chars - mb_strlen( $suffix ) ) ) . $suffix;
1076	} else {
1077	$string = substr( $string, 0, ( $chars - strlen( $suffix ) ) ) . $suffix;
1078	}
1079	}
1080	return $string;
1081	}
1082
1083	/**
1084	* Format content to display shortcodes.
1085	*
1086	* @since 2.3.0
1087	* @param string $raw_string Raw string.
1088	* @return string
1089	*/
1090	function wc_format_content( $raw_string ) {
1091	return apply_filters( 'woocommerce_format_content', apply_filters( 'woocommerce_short_description', $raw_string ), $raw_string );
1092	}
1093
1094	/**
1095	* Format product short description.
1096	* Adds support for Jetpack Markdown.
1097	*
1098	* @codeCoverageIgnore
1099	* @since 2.4.0
1100	* @param string $content Product short description.
1101	* @return string
1102	*/
1103	function wc_format_product_short_description( $content ) {
1104	// Add support for Jetpack Markdown.
1105	if ( class_exists( 'WPCom_Markdown' ) ) {
1106	$markdown = WPCom_Markdown::get_instance();
1107
1108	return wpautop(
1109	$markdown->transform(
1110	$content,
1111	array(
1112	'unslash' => false,
1113	)
1114	)
1115	);
1116	}
1117
1118	return $content;
1119	}
1120
1121	/**
1122	* Formats curency symbols when saved in settings.
1123	*
1124	* @codeCoverageIgnore
1125	* @param string $value Option value.
1126	* @param array $option Option name.
1127	* @param string $raw_value Raw value.
1128	* @return string
1129	*/
1130	function wc_format_option_price_separators( $value, $option, $raw_value ) {
1131	return wp_kses_post( $raw_value );
1132	}
1133	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_price_decimal_sep', 'wc_format_option_price_separators', 10, 3 );
1134	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_price_thousand_sep', 'wc_format_option_price_separators', 10, 3 );
1135
1136	/**
1137	* Formats decimals when saved in settings.
1138	*
1139	* @codeCoverageIgnore
1140	* @param string $value Option value.
1141	* @param array $option Option name.
1142	* @param string $raw_value Raw value.
1143	* @return string
1144	*/
1145	function wc_format_option_price_num_decimals( $value, $option, $raw_value ) {
1146	return is_null( $raw_value ) ? 2 : absint( $raw_value );
1147	}
1148	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_price_num_decimals', 'wc_format_option_price_num_decimals', 10, 3 );
1149
1150	/**
1151	* Formats hold stock option and sets cron event up.
1152	*
1153	* @codeCoverageIgnore
1154	* @param string $value Option value.
1155	* @param array $option Option name.
1156	* @param string $raw_value Raw value.
1157	* @return string
1158	*/
1159	function wc_format_option_hold_stock_minutes( $value, $option, $raw_value ) {
1160	$value = ! empty( $raw_value ) ? absint( $raw_value ) : ''; // Allow > 0 or set to ''.
1161
1162	wp_clear_scheduled_hook( 'woocommerce_cancel_unpaid_orders' );
1163
1164	if ( '' !== $value ) {
1165	$cancel_unpaid_interval = apply_filters( 'woocommerce_cancel_unpaid_orders_interval_minutes', absint( $value ) );
1166	wp_schedule_single_event( time() + ( absint( $cancel_unpaid_interval ) * 60 ), 'woocommerce_cancel_unpaid_orders' );
1167	}
1168
1169	return $value;
1170	}
1171	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_hold_stock_minutes', 'wc_format_option_hold_stock_minutes', 10, 3 );
1172
1173	/**
1174	* Sanitize terms from an attribute text based.
1175	*
1176	* @since 2.4.5
1177	* @param string $term Term value.
1178	* @return string
1179	*/
1180	function wc_sanitize_term_text_based( $term ) {
1181	return trim( wp_strip_all_tags( wp_unslash( $term ) ) );
1182	}
1183
1184	if ( ! function_exists( 'wc_make_numeric_postcode' ) ) {
1185	/**
1186	* Make numeric postcode.
1187	*
1188	* Converts letters to numbers so we can do a simple range check on postcodes.
1189	* E.g. PE30 becomes 16050300 (P = 16, E = 05, 3 = 03, 0 = 00)
1190	*
1191	* @since 2.6.0
1192	* @param string $postcode Regular postcode.
1193	* @return string
1194	*/
1195	function wc_make_numeric_postcode( $postcode ) {
1196	$postcode = str_replace( array( ' ', '-' ), '', $postcode );
1197	$postcode_length = strlen( $postcode );
1198	$letters_to_numbers = array_merge( array( 0 ), range( 'A', 'Z' ) );
1199	$letters_to_numbers = array_flip( $letters_to_numbers );
1200	$numeric_postcode = '';
1201
1202	for ( $i = 0; $i < $postcode_length; $i ++ ) {
1203	if ( is_numeric( $postcode[ $i ] ) ) {
1204	$numeric_postcode .= str_pad( $postcode[ $i ], 2, '0', STR_PAD_LEFT );
1205	} elseif ( isset( $letters_to_numbers[ $postcode[ $i ] ] ) ) {
1206	$numeric_postcode .= str_pad( $letters_to_numbers[ $postcode[ $i ] ], 2, '0', STR_PAD_LEFT );
1207	} else {
1208	$numeric_postcode .= '00';
1209	}
1210	}
1211
1212	return $numeric_postcode;
1213	}
1214	}
1215
1216	/**
1217	* Format the stock amount ready for display based on settings.
1218	*
1219	* @since 3.0.0
1220	* @param WC_Product $product Product object for which the stock you need to format.
1221	* @return string
1222	*/
1223	function wc_format_stock_for_display( $product ) {
1224	$display = __( 'In stock', 'woocommerce' );
1225	$stock_amount = $product->get_stock_quantity();
1226
1227	switch ( get_option( 'woocommerce_stock_format' ) ) {
1228	case 'low_amount':
1229	if ( $stock_amount <= wc_get_low_stock_amount( $product ) ) {
1230	/* translators: %s: stock amount */
1231	$display = sprintf( __( 'Only %s left in stock', 'woocommerce' ), wc_format_stock_quantity_for_display( $stock_amount, $product ) );
1232	}
1233	break;
1234	case '':
1235	/* translators: %s: stock amount */
1236	$display = sprintf( __( '%s in stock', 'woocommerce' ), wc_format_stock_quantity_for_display( $stock_amount, $product ) );
1237	break;
1238	}
1239
1240	if ( $product->backorders_allowed() && $product->backorders_require_notification() ) {
1241	$display .= ' ' . __( '(can be backordered)', 'woocommerce' );
1242	}
1243
1244	return $display;
1245	}
1246
1247	/**
1248	* Format the stock quantity ready for display.
1249	*
1250	* @since 3.0.0
1251	* @param int $stock_quantity Stock quantity.
1252	* @param WC_Product $product Product instance so that we can pass through the filters.
1253	* @return string
1254	*/
1255	function wc_format_stock_quantity_for_display( $stock_quantity, $product ) {
1256	return apply_filters( 'woocommerce_format_stock_quantity', $stock_quantity, $product );
1257	}
1258
1259	/**
1260	* Format a sale price for display.
1261	*
1262	* @since 3.0.0
1263	* @param string $regular_price Regular price.
1264	* @param string $sale_price Sale price.
1265	* @return string
1266	*/
1267	function wc_format_sale_price( $regular_price, $sale_price ) {
1268	$price = '<del aria-hidden="true">' . ( is_numeric( $regular_price ) ? wc_price( $regular_price ) : $regular_price ) . '</del> <ins>' . ( is_numeric( $sale_price ) ? wc_price( $sale_price ) : $sale_price ) . '</ins>';
1269	return apply_filters( 'woocommerce_format_sale_price', $price, $regular_price, $sale_price );
1270	}
1271
1272	/**
1273	* Format a price range for display.
1274	*
1275	* @param string $from Price from.
1276	* @param string $to Price to.
1277	* @return string
1278	*/
1279	function wc_format_price_range( $from, $to ) {
1280	/* translators: 1: price from 2: price to */
1281	$price = sprintf( _x( '%1$s – %2$s', 'Price range: from-to', 'woocommerce' ), is_numeric( $from ) ? wc_price( $from ) : $from, is_numeric( $to ) ? wc_price( $to ) : $to );
1282	return apply_filters( 'woocommerce_format_price_range', $price, $from, $to );
1283	}
1284
1285	/**
1286	* Format a weight for display.
1287	*
1288	* @since 3.0.0
1289	* @param float $weight Weight.
1290	* @return string
1291	*/
1292	function wc_format_weight( $weight ) {
1293	$weight_string = wc_format_localized_decimal( $weight );
1294
1295	if ( ! empty( $weight_string ) ) {
1296	$weight_string .= ' ' . get_option( 'woocommerce_weight_unit' );
1297	} else {
1298	$weight_string = __( 'N/A', 'woocommerce' );
1299	}
1300
1301	return apply_filters( 'woocommerce_format_weight', $weight_string, $weight );
1302	}
1303
1304	/**
1305	* Format dimensions for display.
1306	*
1307	* @since 3.0.0
1308	* @param array $dimensions Array of dimensions.
1309	* @return string
1310	*/
1311	function wc_format_dimensions( $dimensions ) {
1312	$dimension_string = implode( ' × ', array_filter( array_map( 'wc_format_localized_decimal', $dimensions ) ) );
1313
1314	if ( ! empty( $dimension_string ) ) {
1315	$dimension_string .= ' ' . get_option( 'woocommerce_dimension_unit' );
1316	} else {
1317	$dimension_string = __( 'N/A', 'woocommerce' );
1318	}
1319
1320	return apply_filters( 'woocommerce_format_dimensions', $dimension_string, $dimensions );
1321	}
1322
1323	/**
1324	* Format a date for output.
1325	*
1326	* @since 3.0.0
1327	* @param WC_DateTime $date Instance of WC_DateTime.
1328	* @param string $format Data format.
1329	* Defaults to the wc_date_format function if not set.
1330	* @return string
1331	*/
1332	function wc_format_datetime( $date, $format = '' ) {
1333	if ( ! $format ) {
1334	$format = wc_date_format();
1335	}
1336	if ( ! is_a( $date, 'WC_DateTime' ) ) {
1337	return '';
1338	}
1339	return $date->date_i18n( $format );
1340	}
1341
1342	/**
1343	* Process oEmbeds.
1344	*
1345	* @since 3.1.0
1346	* @param string $content Content.
1347	* @return string
1348	*/
1349	function wc_do_oembeds( $content ) {
1350	global $wp_embed;
1351
1352	$content = $wp_embed->autoembed( $content );
1353
1354	return $content;
1355	}
1356
1357	/**
1358	* Get part of a string before :.
1359	*
1360	* Used for example in shipping methods ids where they take the format
1361	* method_id:instance_id
1362	*
1363	* @since 3.2.0
1364	* @param string $string String to extract.
1365	* @return string
1366	*/
1367	function wc_get_string_before_colon( $string ) {
1368	return trim( current( explode( ':', (string) $string ) ) );
1369	}
1370
1371	/**
1372	* Array merge and sum function.
1373	*
1374	* Source: https://gist.github.com/Nickology/f700e319cbafab5eaedc
1375	*
1376	* @since 3.2.0
1377	* @return array
1378	*/
1379	function wc_array_merge_recursive_numeric() {
1380	$arrays = func_get_args();
1381
1382	// If there's only one array, it's already merged.
1383	if ( 1 === count( $arrays ) ) {
1384	return $arrays[0];
1385	}
1386
1387	// Remove any items in $arrays that are NOT arrays.
1388	foreach ( $arrays as $key => $array ) {
1389	if ( ! is_array( $array ) ) {
1390	unset( $arrays[ $key ] );
1391	}
1392	}
1393
1394	// We start by setting the first array as our final array.
1395	// We will merge all other arrays with this one.
1396	$final = array_shift( $arrays );
1397
1398	foreach ( $arrays as $b ) {
1399	foreach ( $final as $key => $value ) {
1400	// If $key does not exist in $b, then it is unique and can be safely merged.
1401	if ( ! isset( $b[ $key ] ) ) {
1402	$final[ $key ] = $value;
1403	} else {
1404	// If $key is present in $b, then we need to merge and sum numeric values in both.
1405	if ( is_numeric( $value ) && is_numeric( $b[ $key ] ) ) {
1406	// If both values for these keys are numeric, we sum them.
1407	$final[ $key ] = $value + $b[ $key ];
1408	} elseif ( is_array( $value ) && is_array( $b[ $key ] ) ) {
1409	// If both values are arrays, we recursively call ourself.
1410	$final[ $key ] = wc_array_merge_recursive_numeric( $value, $b[ $key ] );
1411	} else {
1412	// If both keys exist but differ in type, then we cannot merge them.
1413	// In this scenario, we will $b's value for $key is used.
1414	$final[ $key ] = $b[ $key ];
1415	}
1416	}
1417	}
1418
1419	// Finally, we need to merge any keys that exist only in $b.
1420	foreach ( $b as $key => $value ) {
1421	if ( ! isset( $final[ $key ] ) ) {
1422	$final[ $key ] = $value;
1423	}
1424	}
1425	}
1426
1427	return $final;
1428	}
1429
1430	/**
1431	* Implode and escape HTML attributes for output.
1432	*
1433	* @since 3.3.0
1434	* @param array $raw_attributes Attribute name value pairs.
1435	* @return string
1436	*/
1437	function wc_implode_html_attributes( $raw_attributes ) {
1438	$attributes = array();
1439	foreach ( $raw_attributes as $name => $value ) {
1440	$attributes[] = esc_attr( $name ) . '="' . esc_attr( $value ) . '"';
1441	}
1442	return implode( ' ', $attributes );
1443	}
1444
1445	/**
1446	* Escape JSON for use on HTML or attribute text nodes.
1447	*
1448	* @since 3.5.5
1449	* @param string $json JSON to escape.
1450	* @param bool $html True if escaping for HTML text node, false for attributes. Determines how quotes are handled.
1451	* @return string Escaped JSON.
1452	*/
1453	function wc_esc_json( $json, $html = false ) {
1454	return _wp_specialchars(
1455	$json,
1456	$html ? ENT_NOQUOTES : ENT_QUOTES, // Escape quotes in attribute nodes only.
1457	'UTF-8', // json_encode() outputs UTF-8 (really just ASCII), not the blog's charset.
1458	true // Double escape entities: `&` -> `&amp;`.
1459	);
1460	}
1461
1462	/**
1463	* Parse a relative date option from the settings API into a standard format.
1464	*
1465	* @since 3.4.0
1466	* @param mixed $raw_value Value stored in DB.
1467	* @return array Nicely formatted array with number and unit values.
1468	*/
1469	function wc_parse_relative_date_option( $raw_value ) {
1470	$periods = array(
1471	'days' => __( 'Day(s)', 'woocommerce' ),
1472	'weeks' => __( 'Week(s)', 'woocommerce' ),
1473	'months' => __( 'Month(s)', 'woocommerce' ),
1474	'years' => __( 'Year(s)', 'woocommerce' ),
1475	);
1476
1477	$value = wp_parse_args(
1478	(array) $raw_value,
1479	array(
1480	'number' => '',
1481	'unit' => 'days',
1482	)
1483	);
1484
1485	$value['number'] = ! empty( $value['number'] ) ? absint( $value['number'] ) : '';
1486
1487	if ( ! in_array( $value['unit'], array_keys( $periods ), true ) ) {
1488	$value['unit'] = 'days';
1489	}
1490
1491	return $value;
1492	}
1493
1494	/**
1495	* Format the endpoint slug, strip out anything not allowed in a url.
1496	*
1497	* @since 3.5.0
1498	* @param string $raw_value The raw value.
1499	* @return string
1500	*/
1501	function wc_sanitize_endpoint_slug( $raw_value ) {
1502	return sanitize_title( $raw_value );
1503	}
1504	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_checkout_pay_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1505	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_checkout_order_received_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1506	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_add_payment_method_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1507	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_delete_payment_method_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1508	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_set_default_payment_method_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1509	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_orders_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1510	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_view_order_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1511	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_downloads_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1512	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_edit_account_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1513	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_edit_address_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1514	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_payment_methods_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1515	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_myaccount_lost_password_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1516	add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_logout_endpoint', 'wc_sanitize_endpoint_slug', 10, 1 );
1517