通過php用三種簡單的方法實現手機號中間四位(n位)用星號顯示:
$mobile = '13912345678';
//1.字符串截取法
$newMobile1 = substr($mobile, 0, 5).'****'.substr($mobile, 9);
echo $newMobile1.'<br/>';
//2.替換字符串的子串
$newMobile2 = substr_replace($mobile, '****', 5, 4);
echo $newMobile2.'<br/>';
//3.用正則
$newMobile3 = preg_replace('/(\d{5})\d{4}(\d{2})/', '$1****$2', $mobile);
echo $newMobile3;
//方法 四正則
function hidtel($phone){
$IsWhat = preg_match('/(0[0-9]{2,3}[-]?[2-9][0-9]{6,7}[-]?[0-9]?)/i',$phone); //固定電話
if($IsWhat == 1){
return preg_replace('/(0[0-9]{2,3}[-]?[2-9])[0-9]{3,4}([0-9]{3}[-]?[0-9]?)/i','$1****$2',$phone);
}else{
return preg_replace('/(1[358]{1}[0-9])[0-9]{4}([0-9]{4})/i','$1****$2',$phone);
}
}
Method 2:
$num = "13966778888"
$str = substr_replace($num,'****',3,4);
示例:
代碼如下:
$phonenum = "13966778888";
echo hidtel($phonenum);
最後輸出:139****8888