範例
$str = "wow!h@e#l%l^o"; //需要過濾的字串
$del_char = array('~','!','@','#','%','^','wow'); //需要濾掉的字元
foreach($del_char as $v)
$str = str_replace($v,"",$str);
echo $str;
2015/09/02
因為效能關係 有發現了 新的寫法
<?php
$trans = array( "hello" => "hi", "hi" => "hello");
echo strtr("hi all, I said hello", $trans);?>
輸出結果: hello all, I said hi
來源:http://php.net/manual/en/function.strtr.php
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