原字元串1,2,3,4,5,6,
去掉最後一個字元",",最終結果為1,2,3,4,5,6
代碼如下: $str = "1,2,3,4,5,6,"; $newstr = substr($str,0,strlen($str)-1); echo $newstr; echo 1,2,3,4,5,6
系統自帶的函數即可實作這樣的效果,兩種方法: substr($str, 0, -1)
//函數2
rtrim($str, ",") #############截取 摘取 之間的字元串#########
$str='> <span class="ib">test 23232</span></p> <h2 class="Colo';
preg_match_all('/class="ib">(.*?)</',$str,$ary);
print_r($ary);
function parseHeaders($requset){
$resule =array();
if (preg_match("/GET (.*) HTTP/",$requset,$match)) { $resule['reuqest'] = $match[1]; }
if (preg_match("/Host: (.*)\r\n/",$requset,$match)) { $result['host'] = $match[1]; }
if (preg_match("/Origin: (.*)\r\n/",$requset,$match)) { $result['origin'] = $match[1]; }
if (preg_match("/Sec-WebSocket-Key: (.*)\r\n/",$requset,$match)) { $result['key'] = $match[1]; }
return $result;
}