1: <?php
 2: 
 3: /**
 4:  * Get current url.
 5:  *
 6:  * @param  bool $parse If url should be parsed using `parse_url`. Default false.
 7:  * @param  bool $obj   If parsed url should return as a object instead of array. Default false.
 8:  *
 9:  * @return mixed
10:  */
11: function xu_current_url( $parse = false, $obj = false ) {
12:     $url = $_SERVER['REQUEST_URI'];
13:     $url = ltrim( $url, '/' );
14:     $url = home_url() . '/' . $url;
15: 
16:     // If url shouldn't be parsed,
17:     // just return it as string.
18:     if ( ! (bool) $parse ) {
19:         return $url;
20:     }
21: 
22:     $parts = parse_url( $url );
23:     $parts = $parts === false ? [] : $parts;
24: 
25:     // Return as object or array.
26:     return $obj ? (object) $parts : $parts;
27: }
28: 
29: /**
30:  * Get post id from current url.
31:  *
32:  * @return string
33:  */
34: function xu_current_url_to_postid() {
35:     return xu_url_to_postid( xu_current_url() );
36: }
37: 
38: /**
39:  * Cached version of `url_to_post_id`.
40:  *
41:  * @see https://developer.wordpress.org/reference/functions/url_to_post_id/
42:  *
43:  * @param  string $url
44:  *
45:  * @return int
46:  */
47: function xu_url_to_postid( $url = '' ) {
48:     // `url_to_postid` don't work before `init` action.
49:     if ( ! did_action( 'init' ) ) {
50:         return 0;
51:     }
52: 
53:     // Only valid urls.
54:     if ( parse_url( $url, PHP_URL_HOST ) !== parse_url( home_url(), PHP_URL_HOST ) ) {
55:         return 0;
56:     }
57: 
58:     return (int) xu_cache_get( 'url_to_postid', [$url], __FUNCTION__ );
59: }
60: