原字符串1,2,3,4,5,6,
去掉最後一個字符",",最終結果爲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 $newstr;
系統自帶的函數也可實現這樣的效果,兩種方法:
1) substr($str, 0, -1)
2)rtrim($str, ",")
$fileContent = trim($fileContent); $fileContent=$queueList->characet($fileContent);