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AutomatorWP – No-Code Workflow Automation, Integration & Webhooks Plugin, now with AI / 6.0.3
AutomatorWP – No-Code Workflow Automation, Integration & Webhooks Plugin, now with AI v6.0.3
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← All changes | libraries/cmb2/includes/CMB2_Utils.php +764 -0 5.8.1 → 6.0.3 View file →
@@ -1,0 +1,764 @@
1 +<?php
2 +/**
3 + * CMB2 Utilities
4 + *
5 + * @since 1.1.0
6 + *
7 + * @category WordPress_Plugin
8 + * @package CMB2
9 + * @author CMB2 team
10 + * @license GPL-2.0+
11 + * @link https://cmb2.io
12 + */
13 +class CMB2_Utils {
14 +
15 + /**
16 + * The WordPress ABSPATH constant.
17 + *
18 + * @var string
19 + * @since 2.2.3
20 + */
21 + protected static $ABSPATH = ABSPATH;
22 +
23 + /**
24 + * The url which is used to load local resources.
25 + *
26 + * @var string
27 + * @since 2.0.0
28 + */
29 + protected static $url = '';
30 +
31 + /**
32 + * Utility method that attempts to get an attachment's ID by it's url
33 + *
34 + * @since 1.0.0
35 + * @param string $img_url Attachment url.
36 + * @return int|false Attachment ID or false
37 + */
38 + public static function image_id_from_url( $img_url ) {
39 + $attachment_id = 0;
40 + $dir = wp_upload_dir();
41 +
42 + // Is URL in uploads directory?
43 + if ( false === strpos( $img_url, $dir['baseurl'] . '/' ) ) {
44 + return false;
45 + }
46 +
47 + $file = basename( $img_url );
48 +
49 + $query_args = array(
50 + 'post_type' => 'attachment',
51 + 'post_status' => 'inherit',
52 + 'fields' => 'ids',
53 + 'meta_query' => array( // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query -- Required to resolve an attachment ID from its file URL; no non-meta alternative.
54 + array(
55 + 'value' => $file,
56 + 'compare' => 'LIKE',
57 + 'key' => '_wp_attachment_metadata',
58 + ),
59 + ),
60 + );
61 +
62 + $query = new WP_Query( $query_args );
63 +
64 + if ( $query->have_posts() ) {
65 +
66 + foreach ( $query->posts as $post_id ) {
67 + $meta = wp_get_attachment_metadata( $post_id );
68 + $original_file = basename( $meta['file'] );
69 + $cropped_image_files = isset( $meta['sizes'] ) ? wp_list_pluck( $meta['sizes'], 'file' ) : array();
70 + if ( $original_file === $file || in_array( $file, $cropped_image_files ) ) {
71 + $attachment_id = $post_id;
72 + break;
73 + }
74 + }
75 + }
76 +
77 + return 0 === $attachment_id ? false : $attachment_id;
78 + }
79 +
80 + /**
81 + * Utility method to get a combined list of default and custom registered image sizes
82 + *
83 + * @since 2.2.4
84 + * @link http://core.trac.wordpress.org/ticket/18947
85 + * @global array $_wp_additional_image_sizes
86 + * @return array The image sizes
87 + */
88 + public static function get_available_image_sizes() {
89 + global $_wp_additional_image_sizes;
90 +
91 + $default_image_sizes = array( 'thumbnail', 'medium', 'large' );
92 + $image_sizes = array();
93 + foreach ( $default_image_sizes as $size ) {
94 + $image_sizes[ $size ] = array(
95 + 'height' => intval( get_option( "{$size}_size_h" ) ),
96 + 'width' => intval( get_option( "{$size}_size_w" ) ),
97 + 'crop' => get_option( "{$size}_crop" ) ? get_option( "{$size}_crop" ) : false,
98 + );
99 + }
100 +
101 + if ( isset( $_wp_additional_image_sizes ) && count( $_wp_additional_image_sizes ) ) {
102 + $image_sizes = array_merge( $image_sizes, $_wp_additional_image_sizes );
103 + }
104 +
105 + return $image_sizes;
106 + }
107 +
108 + /**
109 + * Utility method to return the closest named size from an array of values
110 + *
111 + * Based off of WordPress's image_get_intermediate_size()
112 + * If the size matches an existing size then it will be used. If there is no
113 + * direct match, then the nearest image size larger than the specified size
114 + * will be used. If nothing is found, then the function will return false.
115 + * Uses get_available_image_sizes() to get all available sizes.
116 + *
117 + * @since 2.2.4
118 + * @param array|string $size Image size. Accepts an array of width and height (in that order).
119 + * @return false|string Named image size e.g. 'thumbnail'
120 + */
121 + public static function get_named_size( $size ) {
122 + $data = array();
123 +
124 + // Find the best match when '$size' is an array.
125 + if ( is_array( $size ) ) {
126 + $image_sizes = self::get_available_image_sizes();
127 + $candidates = array();
128 +
129 + foreach ( $image_sizes as $_size => $data ) {
130 +
131 + // If there's an exact match to an existing image size, short circuit.
132 + if ( $data['width'] == $size[0] && $data['height'] == $size[1] ) {
133 + $candidates[ $data['width'] * $data['height'] ] = array( $_size, $data );
134 + break;
135 + }
136 +
137 + // If it's not an exact match, consider larger sizes with the same aspect ratio.
138 + if ( $data['width'] >= $size[0] && $data['height'] >= $size[1] ) {
139 +
140 + /**
141 + * To test for varying crops, we constrain the dimensions of the larger image
142 + * to the dimensions of the smaller image and see if they match.
143 + */
144 + if ( $data['width'] > $size[0] ) {
145 + $constrained_size = wp_constrain_dimensions( $data['width'], $data['height'], $size[0] );
146 + $expected_size = array( $size[0], $size[1] );
147 + } else {
148 + $constrained_size = wp_constrain_dimensions( $size[0], $size[1], $data['width'] );
149 + $expected_size = array( $data['width'], $data['height'] );
150 + }
151 +
152 + // If the image dimensions are within 1px of the expected size, we consider it a match.
153 + $matched = ( abs( $constrained_size[0] - $expected_size[0] ) <= 1 && abs( $constrained_size[1] - $expected_size[1] ) <= 1 );
154 +
155 + if ( $matched ) {
156 + $candidates[ $data['width'] * $data['height'] ] = array( $_size, $data );
157 + }
158 + }
159 + }
160 +
161 + if ( ! empty( $candidates ) ) {
162 + // Sort the array by size if we have more than one candidate.
163 + if ( 1 < count( $candidates ) ) {
164 + ksort( $candidates );
165 + }
166 +
167 + $data = array_shift( $candidates );
168 + $data = $data[0];
169 + } elseif ( ! empty( $image_sizes['thumbnail'] ) && $image_sizes['thumbnail']['width'] >= $size[0] && $image_sizes['thumbnail']['width'] >= $size[1] ) {
170 + /*
171 + * When the size requested is smaller than the thumbnail dimensions, we
172 + * fall back to the thumbnail size.
173 + */
174 + $data = 'thumbnail';
175 + } else {
176 + return false;
177 + }
178 + } elseif ( ! empty( $image_sizes[ $size ] ) ) {
179 + $data = $size;
180 + }// End if.
181 +
182 + // If we still don't have a match at this point, return false.
183 + if ( empty( $data ) ) {
184 + return false;
185 + }
186 +
187 + return $data;
188 + }
189 +
190 + /**
191 + * Utility method that returns time string offset by timezone
192 + *
193 + * @since 1.0.0
194 + * @param string $tzstring Time string.
195 + * @return string Offset time string
196 + */
197 + public static function timezone_offset( $tzstring ) {
198 + $tz_offset = 0;
199 +
200 + if ( ! empty( $tzstring ) && is_string( $tzstring ) ) {
201 + if ( 'UTC' === substr( $tzstring, 0, 3 ) ) {
202 + $tzstring = str_replace( array( ':15', ':30', ':45' ), array( '.25', '.5', '.75' ), $tzstring );
203 + return intval( floatval( substr( $tzstring, 3 ) ) * HOUR_IN_SECONDS );
204 + }
205 +
206 + try {
207 + $date_time_zone_selected = new DateTimeZone( $tzstring );
208 + $tz_offset = timezone_offset_get( $date_time_zone_selected, date_create() );
209 + } catch ( Exception $e ) {
210 + self::log_if_debug( __METHOD__, __LINE__, $e->getMessage() );
211 + }
212 + }
213 +
214 + return $tz_offset;
215 + }
216 +
217 + /**
218 + * Utility method that returns a timezone string representing the default timezone for the site.
219 + *
220 + * Roughly copied from WordPress, as get_option('timezone_string') will return
221 + * an empty string if no value has been set on the options page.
222 + * A timezone string is required by the wp_timezone_choice() used by the
223 + * select_timezone field.
224 + *
225 + * @since 1.0.0
226 + * @return string Timezone string
227 + */
228 + public static function timezone_string() {
229 + $current_offset = get_option( 'gmt_offset' );
230 + $tzstring = get_option( 'timezone_string' );
231 +
232 + // Remove old Etc mappings. Fallback to gmt_offset.
233 + if ( false !== strpos( $tzstring, 'Etc/GMT' ) ) {
234 + $tzstring = '';
235 + }
236 +
237 + if ( empty( $tzstring ) ) { // Create a UTC+- zone if no timezone string exists.
238 + if ( 0 == $current_offset ) {
239 + $tzstring = 'UTC+0';
240 + } elseif ( $current_offset < 0 ) {
241 + $tzstring = 'UTC' . $current_offset;
242 + } else {
243 + $tzstring = 'UTC+' . $current_offset;
244 + }
245 + }
246 +
247 + return $tzstring;
248 + }
249 +
250 + /**
251 + * Returns a unix timestamp, first checking if value already is a timestamp.
252 + *
253 + * @since 2.0.0
254 + * @param string|int $string Possible timestamp string.
255 + * @return int Time stamp.
256 + */
257 + public static function make_valid_time_stamp( $string ) {
258 + if ( ! $string ) {
259 + return 0;
260 + }
261 +
262 + $valid = self::is_valid_time_stamp( $string );
263 + if ( $valid ) {
264 + $timestamp = (int) $string;
265 + $length = strlen( (string) $timestamp );
266 + $unixlength = strlen( (string) time() );
267 + $diff = $length - $unixlength;
268 +
269 + // If value is larger than a unix timestamp, we need to round to the
270 + // nearest unix timestamp (in seconds).
271 + if ( $diff > 0 ) {
272 + $divider = (int) '1' . str_repeat( '0', $diff );
273 + $timestamp = round( $timestamp / $divider );
274 + }
275 + } else {
276 + $timestamp = @strtotime( (string) $string ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged -- Intentionally suppress notices on arbitrary input; false return is the error check.
277 + }
278 +
279 + return $timestamp;
280 + }
281 +
282 + /**
283 + * Determine if a value is a valid date.
284 + *
285 + * @since 2.9.1
286 + * @param mixed $date Value to check.
287 + * @return boolean Whether value is a valid date
288 + */
289 + public static function is_valid_date( $date ) {
290 + // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged -- Intentionally suppress notices on arbitrary input; the boolean result is the validity check.
291 + return ( is_string( $date ) && @strtotime( $date ) )
292 + || self::is_valid_time_stamp( $date );
293 + }
294 +
295 + /**
296 + * Determine if a value is a valid timestamp
297 + *
298 + * @since 2.0.0
299 + * @param mixed $timestamp Value to check.
300 + * @return boolean Whether value is a valid timestamp
301 + */
302 + public static function is_valid_time_stamp( $timestamp ) {
303 + return (string) (int) $timestamp === (string) $timestamp
304 + && $timestamp <= PHP_INT_MAX
305 + && $timestamp >= ~PHP_INT_MAX;
306 + }
307 +
308 + /**
309 + * Checks if a value is 'empty'. Still accepts 0.
310 + *
311 + * @since 2.0.0
312 + * @param mixed $value Value to check.
313 + * @return bool True or false
314 + */
315 + public static function isempty( $value ) {
316 + return null === $value || '' === $value || false === $value || array() === $value;
317 + }
318 +
319 + /**
320 + * Checks if a value is not 'empty'. 0 doesn't count as empty.
321 + *
322 + * @since 2.2.2
323 + * @param mixed $value Value to check.
324 + * @return bool True or false
325 + */
326 + public static function notempty( $value ) {
327 + return null !== $value && '' !== $value && false !== $value && array() !== $value;
328 + }
329 +
330 + /**
331 + * Filters out empty values (not including 0).
332 + *
333 + * @since 2.2.2
334 + * @param mixed $value Value to check.
335 + * @return array True or false.
336 + */
337 + public static function filter_empty( $value ) {
338 + return array_filter( $value, array( __CLASS__, 'notempty' ) );
339 + }
340 +
341 + /**
342 + * Insert a single array item inside another array at a set position
343 + *
344 + * @since 2.0.2
345 + * @param array $array Array to modify. Is passed by reference, and no return is needed. Passed by reference.
346 + * @param array $new New array to insert.
347 + * @param int $position Position in the main array to insert the new array.
348 + */
349 + public static function array_insert( &$array, $new, $position ) {
350 + $before = array_slice( $array, 0, $position - 1 );
351 + $after = array_diff_key( $array, $before );
352 + $array = array_merge( $before, $new, $after );
353 + }
354 +
355 + /**
356 + * Defines the url which is used to load local resources.
357 + * This may need to be filtered for local Window installations.
358 + * If resources do not load, please check the wiki for details.
359 + *
360 + * @since 1.0.1
361 + *
362 + * @param string $path URL path.
363 + * @return string URL to CMB2 resources
364 + */
365 + public static function url( $path = '' ) {
366 + if ( self::$url ) {
367 + return self::$url . $path;
368 + }
369 +
370 + $cmb2_url = self::get_url_from_dir( cmb2_dir() );
371 +
372 + /**
373 + * Filter the CMB location url.
374 + *
375 + * @param string $cmb2_url Currently registered url.
376 + */
377 + self::$url = trailingslashit( apply_filters( 'cmb2_meta_box_url', $cmb2_url, CMB2_VERSION ) );
378 +
379 + return self::$url . $path;
380 + }
381 +
382 + /**
383 + * Converts a system path to a URL
384 + *
385 + * @since 2.2.2
386 + * @param string $dir Directory path to convert.
387 + * @return string Converted URL.
388 + */
389 + public static function get_url_from_dir( $dir ) {
390 + $dir = self::normalize_path( $dir );
391 +
392 + // Let's test if We are in the plugins or mu-plugins dir.
393 + $test_dir = trailingslashit( $dir ) . 'unneeded.php';
394 + if (
395 + 0 === strpos( $test_dir, self::normalize_path( WPMU_PLUGIN_DIR ) )
396 + || 0 === strpos( $test_dir, self::normalize_path( WP_PLUGIN_DIR ) )
397 + ) {
398 + // Ok, then use plugins_url, as it is more reliable.
399 + return trailingslashit( plugins_url( '', $test_dir ) );
400 + }
401 +
402 + // Ok, now let's test if we are in the theme dir.
403 + $theme_root = self::normalize_path( get_theme_root() );
404 + if ( 0 === strpos( $dir, $theme_root ) ) {
405 + // Ok, then use get_theme_root_uri.
406 + return set_url_scheme(
407 + trailingslashit(
408 + str_replace(
409 + untrailingslashit( $theme_root ),
410 + untrailingslashit( get_theme_root_uri() ),
411 + $dir
412 + )
413 + )
414 + );
415 + }
416 +
417 + // Check to see if it's anywhere in the root directory.
418 + $site_dir = self::get_normalized_abspath();
419 + $site_url = trailingslashit( is_multisite() ? network_site_url() : site_url() );
420 +
421 + $url = str_replace(
422 + array( $site_dir, WP_PLUGIN_DIR ),
423 + array( $site_url, WP_PLUGIN_URL ),
424 + $dir
425 + );
426 +
427 + return set_url_scheme( $url );
428 + }
429 +
430 + /**
431 + * Get the normalized absolute path defined by WordPress.
432 + *
433 + * @since 2.2.6
434 + *
435 + * @return string Normalized absolute path.
436 + */
437 + protected static function get_normalized_abspath() {
438 + return self::normalize_path( self::$ABSPATH );
439 + }
440 +
441 + /**
442 + * `wp_normalize_path` wrapper for back-compat. Normalize a filesystem path.
443 + *
444 + * On windows systems, replaces backslashes with forward slashes
445 + * and forces upper-case drive letters.
446 + * Allows for two leading slashes for Windows network shares, but
447 + * ensures that all other duplicate slashes are reduced to a single.
448 + *
449 + * @since 2.2.0
450 + *
451 + * @param string $path Path to normalize.
452 + * @return string Normalized path.
453 + */
454 + protected static function normalize_path( $path ) {
455 + if ( function_exists( 'wp_normalize_path' ) ) {
456 + return wp_normalize_path( $path );
457 + }
458 +
459 + // Replace newer WP's version of wp_normalize_path.
460 + $path = str_replace( '\\', '/', $path );
461 + $path = preg_replace( '|(?<=.)/+|', '/', $path );
462 + if ( ':' === substr( $path, 1, 1 ) ) {
463 + $path = ucfirst( $path );
464 + }
465 +
466 + return $path;
467 + }
468 +
469 + /**
470 + * Get timestamp from text date
471 + *
472 + * @since 2.2.0
473 + * @param string $value Date value.
474 + * @param string $date_format Expected date format.
475 + * @return mixed Unix timestamp representing the date.
476 + */
477 + public static function get_timestamp_from_value( $value, $date_format ) {
478 + $date_object = date_create_from_format( $date_format, $value );
479 + return $date_object ? $date_object->setTime( 0, 0, 0 )->getTimeStamp() : strtotime( $value );
480 + }
481 +
482 + /**
483 + * Takes a php date() format string and returns a string formatted to suit for the date/time pickers
484 + * It will work only with the following subset of date() options:
485 + *
486 + * Formats: d, l, j, z, m, F, n, y, and Y.
487 + *
488 + * A slight effort is made to deal with escaped characters.
489 + *
490 + * Other options are ignored, because they would either bring compatibility problems between PHP and JS, or
491 + * bring even more translation troubles.
492 + *
493 + * @since 2.2.0
494 + * @param string $format PHP date format.
495 + * @return string reformatted string
496 + */
497 + public static function php_to_js_dateformat( $format ) {
498 +
499 + // order is relevant here, since the replacement will be done sequentially.
500 + $supported_options = array(
501 + 'd' => 'dd', // Day, leading 0.
502 + 'j' => 'd', // Day, no 0.
503 + 'z' => 'o', // Day of the year, no leading zeroes.
504 + // 'D' => 'D', // Day name short, not sure how it'll work with translations.
505 + 'l ' => 'DD ', // Day name full, idem before.
506 + 'l, ' => 'DD, ', // Day name full, idem before.
507 + 'm' => 'mm', // Month of the year, leading 0.
508 + 'n' => 'm', // Month of the year, no leading 0.
509 + // 'M' => 'M', // Month, Short name.
510 + 'F ' => 'MM ', // Month, full name.
511 + 'F, ' => 'MM, ', // Month, full name.
512 + 'y' => 'y', // Year, two digit.
513 + 'Y' => 'yy', // Year, full.
514 + 'H' => 'HH', // Hour with leading 0 (24 hour).
515 + 'G' => 'H', // Hour with no leading 0 (24 hour).
516 + 'h' => 'hh', // Hour with leading 0 (12 hour).
517 + 'g' => 'h', // Hour with no leading 0 (12 hour).
518 + 'i' => 'mm', // Minute with leading 0.
519 + 's' => 'ss', // Second with leading 0.
520 + 'a' => 'tt', // am/pm.
521 + 'A' => 'TT', // AM/PM.
522 + );
523 +
524 + foreach ( $supported_options as $php => $js ) {
525 + // replaces every instance of a supported option, but skips escaped characters.
526 + $format = preg_replace( "~(?<!\\\\)$php~", $js, $format );
527 + }
528 +
529 + $supported_options = array(
530 + 'l' => 'DD', // Day name full, idem before.
531 + 'F' => 'MM', // Month, full name.
532 + );
533 +
534 + if ( isset( $supported_options[ $format ] ) ) {
535 + $format = $supported_options[ $format ];
536 + }
537 +
538 + $format = preg_replace_callback( '~(?:\\\.)+~', array( __CLASS__, 'wrap_escaped_chars' ), $format );
539 +
540 + return $format;
541 + }
542 +
543 + /**
544 + * Get a DateTime object from a value.
545 + *
546 + * @since 2.11.0
547 + *
548 + * @param string $value The value to convert to a DateTime object.
549 + *
550 + * @return DateTime|null
551 + */
552 + public static function get_datetime_from_value( $value ) {
553 + return is_serialized( $value )
554 + // Ok, we need to unserialize the value
555 + // -- allows back-compat for older field values with serialized DateTime objects.
556 + ? self::unserialize_datetime( $value )
557 + // Handle new json formatted values.
558 + : self::json_to_datetime( $value );
559 + }
560 +
561 + /**
562 + * Unserialize a datetime value string.
563 + *
564 + * This is a back-compat method for older field values with serialized DateTime objects.
565 + *
566 + * @since 2.11.0
567 + *
568 + * @param string $date_value The serialized datetime value.
569 + *
570 + * @return DateTime|null
571 + */
572 + public static function unserialize_datetime( $date_value ) {
573 + $datetime = @unserialize( trim( $date_value ), array( 'allowed_classes' => array( 'DateTime' ) ) );
574 +
575 + return $datetime && $datetime instanceof DateTime ? $datetime : null;
576 + }
577 +
578 + /**
579 + * Convert a json datetime value string to a DateTime object.
580 + *
581 + * @since 2.11.0
582 + *
583 + * @param string $json_string The json value string.
584 + *
585 + * @return DateTime|null
586 + */
587 + public static function json_to_datetime( $json_string ) {
588 + if ( ! is_string( $json_string ) ) {
589 + return null;
590 + }
591 +
592 + $json = json_decode( $json_string );
593 +
594 + // Check if json decode was successful
595 + if ( json_last_error() !== JSON_ERROR_NONE ) {
596 + return null;
597 + }
598 +
599 + // If so, convert to DateTime object.
600 + return self::unserialize_datetime( str_replace(
601 + 'stdClass',
602 + 'DateTime',
603 + serialize( $json )
604 + ) );
605 + }
606 +
607 + /**
608 + * Helper function for CMB_Utils::php_to_js_dateformat().
609 + *
610 + * @since 2.2.0
611 + * @param string $value Value to wrap/escape.
612 + * @return string Modified value
613 + */
614 + public static function wrap_escaped_chars( $value ) {
615 + return '&#39;' . str_replace( '\\', '', $value[0] ) . '&#39;';
616 + }
617 +
618 + /**
619 + * Send to debug.log if WP_DEBUG is defined and true
620 + *
621 + * @since 2.2.0
622 + *
623 + * @param string $function Function name.
624 + * @param int $line Line number.
625 + * @param mixed $msg Message to output.
626 + * @param mixed $debug Variable to print_r.
627 + */
628 + public static function log_if_debug( $function, $line, $msg, $debug = null ) {
629 + if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
630 + error_log( "In $function, $line:" . print_r( $msg, true ) . ( $debug ? print_r( $debug, true ) : '' ) );
631 + }
632 + }
633 +
634 + /**
635 + * Determine a file's extension
636 + *
637 + * @since 1.0.0
638 + * @param string $file File url.
639 + * @return string|false File extension or false
640 + */
641 + public static function get_file_ext( $file ) {
642 + $parsed = parse_url( $file, PHP_URL_PATH );
643 + return $parsed ? strtolower( pathinfo( $parsed, PATHINFO_EXTENSION ) ) : false;
644 + }
645 +
646 + /**
647 + * Get the file name from a url
648 + *
649 + * @since 2.0.0
650 + * @param string $value File url or path.
651 + * @return string File name
652 + */
653 + public static function get_file_name_from_path( $value ) {
654 + $parts = explode( '/', $value );
655 + return is_array( $parts ) ? end( $parts ) : $value;
656 + }
657 +
658 + /**
659 + * Check if WP version is at least $version.
660 + *
661 + * @since 2.2.2
662 + * @param string $version WP version string to compare.
663 + * @return bool Result of comparison check.
664 + */
665 + public static function wp_at_least( $version ) {
666 + return version_compare( get_bloginfo( 'version' ), $version, '>=' );
667 + }
668 +
669 + /**
670 + * Combines attributes into a string for a form element.
671 + *
672 + * @since 1.1.0
673 + * @param array $attrs Attributes to concatenate.
674 + * @param array $attr_exclude Attributes that should NOT be concatenated.
675 + * @return string String of attributes for form element.
676 + */
677 + public static function concat_attrs( $attrs, $attr_exclude = array() ) {
678 + $attr_exclude[] = 'rendered';
679 + $attr_exclude[] = 'js_dependencies';
680 +
681 + $attributes = '';
682 + foreach ( $attrs as $attr => $val ) {
683 + $excluded = in_array( $attr, (array) $attr_exclude, true );
684 + $empty = false === $val && 'value' !== $attr;
685 + if ( ! $excluded && ! $empty ) {
686 + $val = is_array( $val ) ? implode( ',', $val ) : $val;
687 +
688 + // if data attribute, use single quote wraps, else double.
689 + $quotes = self::is_data_attribute( $attr ) ? "'" : '"';
690 + $attributes .= sprintf( ' %1$s=%3$s%2$s%3$s', $attr, $val, $quotes );
691 + }
692 + }
693 + return $attributes;
694 + }
695 +
696 + /**
697 + * Check if given attribute is a data attribute.
698 + *
699 + * @since 2.2.5
700 + *
701 + * @param string $att HTML attribute.
702 + * @return boolean
703 + */
704 + public static function is_data_attribute( $att ) {
705 + return 0 === stripos( $att, 'data-' );
706 + }
707 +
708 + /**
709 + * Ensures value is an array.
710 + *
711 + * @since 2.2.3
712 + *
713 + * @param mixed $value Value to ensure is array.
714 + * @param array $default Default array. Defaults to empty array.
715 + *
716 + * @return array The array.
717 + */
718 + public static function ensure_array( $value, $default = array() ) {
719 + if ( empty( $value ) ) {
720 + return $default;
721 + }
722 +
723 + if ( is_array( $value ) || is_object( $value ) ) {
724 + return (array) $value;
725 + }
726 +
727 + // Not sure anything would be non-scalar that is not an array or object?
728 + if ( ! is_scalar( $value ) ) {
729 + return $default;
730 + }
731 +
732 + return (array) $value;
733 + }
734 +
735 + /**
736 + * If number is numeric, normalize it with floatval or intval, depending on if decimal is found.
737 + *
738 + * @since 2.2.6
739 + *
740 + * @param mixed $value Value to normalize (if numeric).
741 + * @return mixed Possibly normalized value.
742 + */
743 + public static function normalize_if_numeric( $value ) {
744 + if ( is_numeric( $value ) ) {
745 + $value = false !== strpos( $value, '.' ) ? floatval( $value ) : intval( $value );
746 + }
747 +
748 + return $value;
749 + }
750 +
751 + /**
752 + * Generates a 12 character unique hash from a string.
753 + *
754 + * @since 2.4.0
755 + *
756 + * @param string $string String to create a hash from.
757 + *
758 + * @return string
759 + */
760 + public static function generate_hash( $string ) {
761 + return substr( base_convert( md5( $string ), 16, 32 ), 0, 12 );
762 + }
763 +
764 +}