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  1. <?php
  2.  
  3. $url_input = 'https://e...content-available-to-author-only...e.com/page/ゴッホ?search=星月夜&limit=20&offset=0';
  4. var_dump(is_url($url_input,true));
  5.  
  6. // 検証
  7. function is_url( $url, $encode = true ){
  8.     if( $encode ){
  9.         $url = my_urlencode($url);
  10.     }
  11.     return false !== filter_var($url, FILTER_VALIDATE_URL) && preg_match("[^https?+://]i", $url);
  12. }
  13.  
  14. // 検証のために必要箇所をエンコード
  15. function my_urlencode($url){
  16.     $parsed = parse_url($url);
  17.  
  18.     // パスをエンコード
  19.     $path = $parsed['path'] ?? '';
  20.     $path = rtrim($path,'/'); // 末尾スラッシュなしで統一
  21.     $path_arr = explode('/',$path);    
  22.     $path_str = '';
  23.     foreach($path_arr as $path){
  24.         $path_str .= urlencode($path) . '/';
  25.     }
  26.     $parsed['path'] = rtrim($path_str,'/');
  27.  
  28.     // パラをエンコード
  29.     $query = $parsed['query'] ?? '';
  30. 	$para_info = [];        
  31. 	if( $query ){
  32. 		parse_str($query, $para_info); // 連想配列にして重複を削除
  33. 		ksort($para_info); // ソート
  34. 	}
  35. 	$para_str = '';
  36.     foreach($para_info as $k => $para){
  37.         $para_str .= $k . '=' . urlencode($para) . '&';
  38.     }	
  39.     $parsed['query'] = rtrim($para_str,'&');
  40.  
  41.     // 構築
  42.     $built = build_url($parsed);
  43.     if( $path === '' ){
  44.         $built = rtrim($built,'/');
  45.     }
  46.     if( $query === '' ){
  47.         $built = rtrim($built,'?');
  48.     }
  49.     return $built;
  50. }
  51.  
  52. // parse_url の逆
  53. function build_url(array $elements) {
  54.     $e = $elements;
  55.     return
  56.         (isset($e['host']) ? (
  57.             (isset($e['scheme']) ? "$e[scheme]://" : '//') .
  58.             (isset($e['user']) ? $e['user'] . (isset($e['pass']) ? ":$e[pass]" : '') . '@' : '') .
  59.             $e['host'] .
  60.             (isset($e['port']) ? ":$e[port]" : '')
  61.         ) : '') .
  62.         (isset($e['path']) ? $e['path'] : '/') .
  63.         (isset($e['query']) ? '?' . (is_array($e['query']) ? http_build_query($e['query'], '', '&') : $e['query']) : '') .
  64.         (isset($e['fragment']) ? "#$e[fragment]" : '')
  65.     ;
  66. }
Success #stdin #stdout 0.02s 24620KB
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https://ideone.com/oHNXt9
language:
PHP (php 7.3.5)
created:
3 years ago
visibility:
public

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