1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 <?php
/**
* WordPress core functions for keeping compatibility.
*
* @package EPL
* @subpackage Compatibility/Shortcodes
* @copyright Copyright (c) 2016, Merv Barrett
* @license http://opensource.org/licenses/gpl-2.0.php GNU Public License
* @since 2.1.11
*/
// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
if ( ! function_exists( 'shortcode_exists' ) ) {
/**
* Whether a registered shortcode exists named $tag
*
* @since 2.1.11
*
* @global array $shortcode_tags List of shortcode tags and their callback hooks.
*
* @param string $tag Shortcode tag to check.
* @return bool Whether the given shortcode exists.
*/
function shortcode_exists( $tag ) {
global $shortcode_tags;
return array_key_exists( $tag, $shortcode_tags );
}
}
if ( ! function_exists( 'wp_timezone_string' ) ) {
/**
* Retrieves the timezone of the site as a string.
*
* Uses the `timezone_string` option to get a proper timezone name if available,
* otherwise falls back to a manual UTC ± offset.
*
* Example return values:
*
* - 'Europe/Rome'
* - 'America/North_Dakota/New_Salem'
* - 'UTC'
* - '-06:30'
* - '+00:00'
* - '+08:45'
*
* @since 3.5.7 Added as this function is not present before WordPress 5.3.0
*
* @return string PHP timezone name or a ±HH:MM offset.
*/
function wp_timezone_string() {
$timezone_string = get_option( 'timezone_string' );
if ( $timezone_string ) {
return $timezone_string;
}
$offset = (float) get_option( 'gmt_offset' );
$hours = (int) $offset;
$minutes = ( $offset - $hours );
$sign = ( $offset < 0 ) ? '-' : '+';
$abs_hour = abs( $hours );
$abs_mins = abs( $minutes * 60 );
$tz_offset = sprintf( '%s%02d:%02d', $sign, $abs_hour, $abs_mins );
return $tz_offset;
}
}
if ( ! function_exists( 'wp_timezone' ) ) {
/**
* Retrieves the timezone of the site as a `DateTimeZone` object.
*
* Timezone can be based on a PHP timezone string or a ±HH:MM offset.
*
* @since 3.5.7 Added as this function is not present before WordPress 5.3.0
*
* @return DateTimeZone Timezone object.
*/
function wp_timezone() {
return new DateTimeZone( wp_timezone_string() );
}
}
if ( ! function_exists( 'current_datetime' ) ) {
/**
* Retrieves the current time as an object using the site's timezone.
*
* @since 3.5.7 Added as this function is not present before WordPress 5.3.0
*
* @return DateTimeImmutable Date and time object.
*/
function current_datetime() {
return new DateTimeImmutable( 'now', wp_timezone() );
}
}