急求一段php替换代码

Question

本帖最后由 xiaodage 于 2009-10-07 14:05:29 编辑

Answer 1

最简单的方法：
$hidden_phone=$_POST['tel'];
$hidden_phone[2]="*";
$hidden_phone[3]="*";
$hidden_phone[4]="*";
$hidden_phone[5]="*";
$hidden_phone[6]="*";
$hidden_phone[8]="*";
:)
别忘了检测一下号码的长度，确认有效性。

Answer 2

<?
echo preg_replace("/(?<=\d{2})\d{5}/i","*****","12345678963")." <br>";
?>

Answer 3

呵呵，3到8位原来是有6个数字的。看来我要回小学深造了<? 
echo preg_replace("/(?<=\d{2})\d{6}/i","******","12345678963")." <br>"; 
?>

Answer 4

我觉得还是substr好一点  echo substr($_POST['tel'],3,6);

Answer 5

....弄错了 substr_replace($_POST['tel'],'******',3,6)；