78 lines
2 KiB
PHP
78 lines
2 KiB
PHP
<?php
|
|
/**
|
|
* ActivityPub implementation for WordPress/PHP functions either missing from older WordPress/PHP versions or not included by default.
|
|
*/
|
|
|
|
if ( ! function_exists( 'str_starts_with' ) ) {
|
|
/**
|
|
* Polyfill for `str_starts_with()` function added in PHP 8.0.
|
|
*
|
|
* Performs a case-sensitive check indicating if
|
|
* the haystack begins with needle.
|
|
*
|
|
* @param string $haystack The string to search in.
|
|
* @param string $needle The substring to search for in the `$haystack`.
|
|
* @return bool True if `$haystack` starts with `$needle`, otherwise false.
|
|
*/
|
|
function str_starts_with( $haystack, $needle ) {
|
|
if ( '' === $needle ) {
|
|
return true;
|
|
}
|
|
|
|
return 0 === strpos( $haystack, $needle );
|
|
}
|
|
}
|
|
|
|
if ( ! function_exists( 'get_self_link' ) ) {
|
|
/**
|
|
* Returns the link for the currently displayed feed.
|
|
*
|
|
* @return string Correct link for the atom:self element.
|
|
*/
|
|
function get_self_link() {
|
|
$host = wp_parse_url( home_url() );
|
|
$path = isset( $_SERVER['REQUEST_URI'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '';
|
|
return esc_url( apply_filters( 'self_link', set_url_scheme( 'http://' . $host['host'] . $path ) ) );
|
|
}
|
|
}
|
|
|
|
if ( ! function_exists( 'is_countable' ) ) {
|
|
/**
|
|
* Polyfill for `is_countable()` function added in PHP 7.3.
|
|
*
|
|
* @param mixed $value The value to check.
|
|
* @return bool True if `$value` is countable, otherwise false.
|
|
*/
|
|
function is_countable( $value ) {
|
|
return is_array( $value ) || $value instanceof \Countable;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Polyfill for `array_is_list()` function added in PHP 7.3.
|
|
*
|
|
* @param array $array The array to check.
|
|
*
|
|
* @return bool True if `$array` is a list, otherwise false.
|
|
*/
|
|
if ( ! function_exists( 'array_is_list' ) ) {
|
|
function array_is_list( $array ) {
|
|
if ( ! is_array( $array ) ) {
|
|
return false;
|
|
}
|
|
|
|
if ( array_values( $array ) === $array ) {
|
|
return true;
|
|
}
|
|
|
|
$next_key = -1;
|
|
|
|
foreach ( $array as $k => $v ) {
|
|
if ( ++$next_key !== $k ) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|