100 lines
2.7 KiB
PHP
100 lines
2.7 KiB
PHP
<?php
|
|
if ( ! function_exists( 'array_key_first' ) ) {
|
|
/**
|
|
* Polyfill for array_key_first() function added in PHP 7.3.
|
|
*
|
|
* Get the first key of the given array without affecting
|
|
* the internal array pointer.
|
|
*
|
|
* @param array $arr An array.
|
|
* @return string|int|null The first key of array if the array
|
|
* is not empty; `null` otherwise.
|
|
*/
|
|
function array_key_first( array $arr ) {
|
|
foreach ( $arr as $key => $value ) {
|
|
return $key;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! function_exists( 'array_key_last' ) ) {
|
|
/**
|
|
* Polyfill for `array_key_last()` function added in PHP 7.3.
|
|
*
|
|
* Get the last key of the given array without affecting the
|
|
* internal array pointer.
|
|
*
|
|
* @param array $arr An array.
|
|
* @return string|int|null The last key of array if the array
|
|
*. is not empty; `null` otherwise.
|
|
*/
|
|
function array_key_last( array $arr ) {
|
|
if ( empty( $arr ) ) {
|
|
return null;
|
|
}
|
|
end( $arr );
|
|
return key( $arr );
|
|
}
|
|
}
|
|
|
|
if ( ! function_exists( 'str_contains' ) ) {
|
|
/**
|
|
* Polyfill for `str_contains()` function added in PHP 8.0.
|
|
*
|
|
* Performs a case-sensitive check indicating if needle is
|
|
* contained in haystack.
|
|
*
|
|
* @since 5.9.0
|
|
*
|
|
* @param string $haystack The string to search in.
|
|
* @param string $needle The substring to search for in the haystack.
|
|
* @return bool True if `$needle` is in `$haystack`, otherwise false.
|
|
*/
|
|
function str_contains( $haystack, $needle ) {
|
|
return ( '' === $needle || false !== strpos( $haystack, $needle ) );
|
|
}
|
|
}
|
|
|
|
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.
|
|
*
|
|
* @since 5.9.0
|
|
*
|
|
* @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( 'str_ends_with' ) ) {
|
|
/**
|
|
* Polyfill for `str_ends_with()` function added in PHP 8.0.
|
|
*
|
|
* Performs a case-sensitive check indicating if
|
|
* the haystack ends with needle.
|
|
*
|
|
* @since 5.9.0
|
|
*
|
|
* @param string $haystack The string to search in.
|
|
* @param string $needle The substring to search for in the `$haystack`.
|
|
* @return bool True if `$haystack` ends with `$needle`, otherwise false.
|
|
*/
|
|
function str_ends_with( $haystack, $needle ) {
|
|
if ( '' === $haystack && '' !== $needle ) {
|
|
return false;
|
|
}
|
|
$len = strlen( $needle );
|
|
return 0 === substr_compare( $haystack, $needle, -$len, $len );
|
|
}
|
|
}
|