請教大神preg_replace如何替換成preg_replace_callback

 private function escapeReserved($query)  {               $search = array ("/({)(\w+)(})/e",                          "/({L#)([0-9]+)(})/e",           "/(\:)(uid|session|file|access|mode|comment|desc|size|start|end)/e",                        )    $replace = array ("'\"\\1'.strtoupper('\\2').'\\3\"'",          "'\"\\1'.strtoupper('\\2').'\\3\"'",          "'\\1'.'db_'.'\\2'.'\\3'",)          return preg_replace($search, $replace, $query);    }

如何將preg_replace()替換成preg_replace_callback()呢

回複討論(解決方案)

$s = '{Test}{L#123456}:uid';echo escapeReserved($s);// "{TEST}""{L#123456}":db_uidecho '
';echo test($s);//"{TEST}""{L#123456}":db_uidfunction escapeReserved($query){$search = array ("/({)(\w+)(})/e", "/({L#)([0-9]+)(})/e", "/(\:)(uid|session|file|access|mode|comment|desc|size|start|end)/e"); $replace = array ("'\"\\1'.strtoupper('\\2').'\\3\"'","'\"\\1'.strtoupper('\\2').'\\3\"'","'\\1'.'db_'.'\\2'.'\\3'"); return preg_replace($search, $replace, $query); }function test($query){$search = array ("/({)(\w+)(})/", "/({L#)([0-9]+)(})/", "/(\:)(uid|session|file|access|mode|comment|desc|size|start|end)/");return preg_replace_callback($search, function($m) {if(isset($m[3])){return '"'.$m[1].strtoupper($m[2]).$m[3].'"';}else{return "$m[1]db_$m[2]";}       }, $query);}

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