wordpress-seo / src / helpers / date-helper.php

date-helper.php in Yoast SEO – Advanced SEO with real-time guidance and built-in AI 19.0, at src/helpers/date-helper.php

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1	<?php
2
3	namespace Yoast\WP\SEO\Helpers;
4
5	use DateTime;
6	use DateTimeZone;
7	use Exception;
8
9	/**
10	* A helper object for dates.
11	*/
12	class Date_Helper {
13
14	/**
15	* Convert given date string to the W3C format.
16	*
17	* If $translate is true then the given date and format string will
18	* be passed to date_i18n() for translation.
19	*
20	* @param string $date Date string to convert.
21	* @param bool $translate Whether the return date should be translated. Default false.
22	*
23	* @return string Formatted date string.
24	*/
25	public function mysql_date_to_w3c_format( $date, $translate = false ) {
26	return \mysql2date( \DATE_W3C, $date, $translate );
27	}
28
29	/**
30	* Formats a given date in UTC TimeZone format.
31	*
32	* @param string $date String representing the date / time.
33	* @param string $format The format that the passed date should be in.
34	*
35	* @return string The formatted date.
36	*/
37	public function format( $date, $format = \DATE_W3C ) {
38	if ( ! \is_string( $date ) ) {
39	return $date;
40	}
41
42	$immutable_date = \date_create_immutable_from_format( 'Y-m-d H:i:s', $date, new DateTimeZone( 'UTC' ) );
43
44	if ( ! $immutable_date ) {
45	return $date;
46	}
47
48	return $immutable_date->format( $format );
49	}
50
51	/**
52	* Formats the given timestamp to the needed format.
53	*
54	* @param int $timestamp The timestamp to use for the formatting.
55	* @param string $format The format that the passed date should be in.
56	*
57	* @return string The formatted date.
58	*/
59	public function format_timestamp( $timestamp, $format = \DATE_W3C ) {
60	if ( ! \is_string( $timestamp ) && ! \is_int( $timestamp ) ) {
61	return $timestamp;
62	}
63
64	$immutable_date = \date_create_immutable_from_format( 'U', $timestamp, new DateTimeZone( 'UTC' ) );
65
66	if ( ! $immutable_date ) {
67	return $timestamp;
68	}
69
70	return $immutable_date->format( $format );
71	}
72
73	/**
74	* Formats a given date in UTC TimeZone format and translate it to the set language.
75	*
76	* @param string $date String representing the date / time.
77	* @param string $format The format that the passed date should be in.
78	*
79	* @return string The formatted and translated date.
80	*/
81	public function format_translated( $date, $format = \DATE_W3C ) {
82	return \date_i18n( $format, $this->format( $date, 'U' ) );
83	}
84
85	/**
86	* Returns the current time measured in the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).
87	*
88	* @return int The current time measured in the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).
89	*/
90	public function current_time() {
91	return \time();
92	}
93
94	/**
95	* Check if a string is a valid datetime.
96	*
97	* @param string $datetime String input to check as valid input for DateTime class.
98	*
99	* @return bool True when datetime is valid.
100	*/
101	public function is_valid_datetime( $datetime ) {
102	if ( $datetime === null ) {
103	/*
104	* While not "officially" supported, `null` will be handled as `"now"` until PHP 9.0.
105	* @link https://3v4l.org/tYp2k
106	*/
107	return true;
108	}
109
110	if ( \is_string( $datetime ) && \substr( $datetime, 0, 1 ) === '-' ) {
111	return false;
112	}
113
114	try {
115	return new DateTime( $datetime ) !== false;
116	} catch ( Exception $exception ) {
117	return false;
118	}
119	}
120	}
121