<?php

defined( 'ABSPATH' ) || exit;

if ( ! function_exists( 'str_starts_with' ) ) {
	/**
	 * Polyfill for str_starts_with() function added in PHP 8.0.
	 *
	 * @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_starts_with( $haystack, $needle ) {
		if ( '' === $needle ) {
			return true;
		}
		return 0 === strpos( $haystack, $needle );
	}
}

if ( ! function_exists( 'str_contains' ) ) {
	/**
	 * Polyfill for str_contains() function added in PHP 8.0.
	 *
	 * @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( 'wp_is_serving_rest_request' ) ) {
	/**
	 * Polyfill for wp_is_serving_rest_request() function added in WordPress 6.5.
	 *
	 * @return bool True if a REST request, otherwise false.
	 */
	function wp_is_serving_rest_request() {
		return defined( 'REST_REQUEST' ) && REST_REQUEST;
	}
}