PHP手机号中间四位用星号*代替显示的实例

1. $all_lottery_logs = ********;     //该语句是得到中奖纪录
   
2. //遍历处理手机号
   
3. foreach($all_lottery_logs as $k=>$v){
   
4.    $xing = substr($v['tel'],3,4);  //获取手机号中间四位
   
5.    $all_lottery_logs[$k]['tel'] = str_replace($xing,'****',$v['tel']);  //用****进行替换
   
6. }

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1. <?php
   
2. $tel = '12345678910';
   
3. //1.字符串截取法
   
4. $new_tel1 = substr($tel, 0, 3).'****'.substr($tel, 7);
   
5. var_dump($new_tel1);
   
6. //2.替换字符串的子串
   
7. $new_tel2 = substr_replace($tel, '****', 3, 4);
   
8. var_dump($new_tel2);
   
9. //3.用正则
   
10. $new_tel3 = preg_replace('/(\d{3})\d{4}(\d{4})/', '$1****$2', $tel);
    
11. var_dump($new_tel3);
    
12. ?>

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1. > string(11) "123****8910"
   
2. > string(11) "123****8910"
   
3. > string(11) "123****8910"

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