112 lines
2.8 KiB
PHP
112 lines
2.8 KiB
PHP
<?php
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/**
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* ActivityPub implementation for WordPress/PHP functions either missing from older WordPress/PHP versions or not included by default.
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*
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* @package Activitypub
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*/
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if ( ! function_exists( 'str_starts_with' ) ) {
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/**
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* Polyfill for `str_starts_with()` function added in PHP 8.0.
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*
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* Performs a case-sensitive check indicating if
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* the haystack begins with needle.
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*
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* @param string $haystack The string to search in.
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* @param string $needle The substring to search for in the `$haystack`.
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* @return bool True if `$haystack` starts with `$needle`, otherwise false.
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*/
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function str_starts_with( $haystack, $needle ) {
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if ( '' === $needle ) {
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return true;
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}
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return 0 === strpos( $haystack, $needle );
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}
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}
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if ( ! function_exists( 'is_countable' ) ) {
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/**
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* Polyfill for `is_countable()` function added in PHP 7.3.
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*
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* @param mixed $value The value to check.
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* @return bool True if `$value` is countable, otherwise false.
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*/
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function is_countable( $value ) {
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return is_array( $value ) || $value instanceof \Countable;
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}
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}
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/**
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* Polyfill for `array_is_list()` function added in PHP 7.3.
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*
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* @param array $array The array to check.
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*
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* @return bool True if `$array` is a list, otherwise false.
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*/
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if ( ! function_exists( 'array_is_list' ) ) {
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/**
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* Check if an array is a list.
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*
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* An array is considered a list if its keys are a range of numbers
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* starting from 0 and ending at count( $array ) - 1.
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*
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* @param array $input The array to check.
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*
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* @return bool True if `$input` is a list, otherwise false.
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*/
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function array_is_list( $input ) {
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if ( ! is_array( $input ) ) {
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return false;
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}
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if ( array_values( $input ) === $input ) {
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return true;
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}
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$next_key = -1;
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foreach ( $input as $k => $v ) {
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if ( ++$next_key !== $k ) {
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return false;
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}
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}
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return true;
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}
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}
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if ( ! function_exists( 'str_contains' ) ) {
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/**
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* Polyfill for `str_contains()` function added in PHP 8.0.
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*
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* Performs a case-sensitive check indicating if needle is
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* contained in haystack.
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*
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* @param string $haystack The string to search in.
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* @param string $needle The substring to search for in the `$haystack`.
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*
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* @return bool True if `$needle` is in `$haystack`, otherwise false.
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*/
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function str_contains( $haystack, $needle ) {
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if ( '' === $needle ) {
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return true;
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}
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return false !== strpos( $haystack, $needle );
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}
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}
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if ( ! function_exists( 'wp_is_serving_rest_request' ) ) {
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/**
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* Polyfill for `wp_is_serving_rest_request()` function added in WordPress 6.5.
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*
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* @see https://developer.wordpress.org/reference/functions/wp_is_serving_rest_request/
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*
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* @return bool True if it's a WordPress REST API request, false otherwise.
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*/
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function wp_is_serving_rest_request() {
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return defined( 'REST_REQUEST' ) && REST_REQUEST;
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}
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}
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