PHP string replacement with asterisks or other characters (mobile phone number, ID card)

PHP string replacement with asterisks or other characters (mobile phone number, ID card)_PHP tutorial

WBOY

Release： 2016-07-13 10:44:03

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In PHP, the character at the specified position in the string is replaced with an asterisk. We have many functions that can be implemented, such as substr, preg_replace, substr_replace, etc. Below I will introduce an example for each of these three functions, mainly talking about phone calls. ID card.

Mobile phone number string is replaced with asterisk code:

The code is as follows

代码如下

复制代码

$str = "15832818835";
echo substr($str,0,3).'*****'.substr($str,8,strlen($str));//保留前三位和后三位
?>

或用正则

$s='www.bKjia.c0m的王经理：13999312365 李经理：13588958741';
$s=preg_replace('#(d{3})d{5}(d{3})#', '*****', $s);
echo $s;
//王经理：139*****365 李经理：135*****741
?>

Copy code

代码如下

复制代码

function half_replace($str){
$len = strlen($str)/2;
return substr_replace($str,str_repeat('*',$len),ceil(($len)/2),$len);
}

echo half_replace('test'),"n",half_replace('tests'),"n",half_replace('exceptions');

$str = "15832818835";

echo substr($str,0,3).'*****'.substr($str,8,strlen($str));//Retain the first three digits and the last three digits

代码如下	复制代码
echo strlen($idcard)==15?substr_replace($idcard,"**",8,4):(strlen($idcard)==18?substr_replace($idcard,"**",10,4):"bKjia.c0m提示身份证位数不正常！");

or use regular expression $s='Manager Wang of www.bKjia.c0m: 13999312365 Manager Li: 13588958741';

$s=preg_replace('#(d{3})d{5}(d{3})#', '${1}*****${2}', $s);