preg_replace()：不推荐使用 /e 修饰符，改用 preg_replace_callback 数组到字符串的转换

Question

我使用该功能将 URL 转换为活动链接

public function make_links_blank($text)
     {
        return  preg_replace(
   array(
   '/(?(?=<a[^>]*>.+<\/a>)
         (?:<a[^>]*>.+<\/a>)
         |
         ([^="\']?)((?:https?|ftp|bf2|):\/\/[^<> \n\r]+)
     )/iex',
   '/<a([^>]*)target="?[^"\']+"?/i',
   '/<a([^>]+)>/i',
   '/(^|\s)(www.[^<> \n\r]+)/iex',
   '/(([_A-Za-z0-9-]+)(\.[_A-Za-z0-9-]+)*@([A-Za-z0-9-]+)
   (\.[A-Za-z0-9-]+)*)/iex'
   ),
 array(
   "stripslashes((strlen('\2')>0?'\1<a href=\"\2\">\2</a>\3':'\0'))",
   '<a\1',
   '<a\1 target="_blank" rel="nofollow">',
   "stripslashes((strlen('\2')>0?'\1<a        href=\"http://\2\">\2</a>\3':'\0'))",
   "stripslashes((strlen('\2')>0?'<a href=\"mailto:\0\">\0</a>':'\0'))"
         ),
        $text
   );
}

但是我有一个错误

preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead

Answer 1

我改用了那个代码，效果很好

    public function make_links_blank($text=''){ 
      $rexProtocol = '(https?://)?';
      $rexDomain   = '((?:[-a-zA-Z0-9]{1,63}\.)+[-a-zA-Z0-9]{2,63}|(?:[0-9]{1,3}\.){3}[0-9]{1,3})';
      $rexPort     = '(:[0-9]{1,5})?';
      $rexPath     = '(/[!$-/0-9:;=@_\':;!a-zA-Z\x7f-\xff]*?)?';
      $rexQuery    = '(\?[!$-/0-9:;=@_\':;!a-zA-Z\x7f-\xff]+?)?';
      $rexFragment = '(#[!$-/0-9:;=@_\':;!a-zA-Z\x7f-\xff]+?)?';    
      return $text =  preg_replace_callback("&\b$rexProtocol$rexDomain$rexPort$rexPath$rexQuery$rexFr agment(?=[?.!,;:\"]?(\s|$))&",
   function ($match)
  {
    $completeUrl = $match[1] ? $match[0] : "http://{$match[0]}";
    return '<a href="' . $completeUrl . '" rel="nofollow" target="_blank">'
    . $match[2] . $match[3] . $match[4] . '</a>';
 }
 , htmlspecialchars($text));
}

preg_replace()：不推荐使用 /e 修饰符，改用 preg_replace_callback 数组到字符串的转换

preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead Array to string conversion

php

preg-replace

preg-replace-callback