Verify mobile phone number using php regular expression

This article mainly introduces the use of PHP regularity to verify mobile phone numbers. Interested friends can refer to it. I hope it will be helpful to everyone.

Everyone should have this common sense. China’s mobile phone numbers all start with the number “1”, and then use 11-digit combinations of 10 numbers from “0 to 9”. Then our verification rules must be Write according to this idea.
Based on the simple idea above, we can write the following verification code, the code is as follows:

<?php  
  //本代码仅仅是提供一些思路  
  //距离实际应用还有一些距离  
   $mobile = &#39;15858588585&#39;;  
  //下面的1便是手机的第一位数字必须为数字1  
  //[0-9]指后面的数字均为0~9的数字  
  //{9}这中间的9指的是手机号码除了第一位数外，其他要重复10次，刚好就是11位数了  
  if(!preg_match(&#39;/^1([0-9]{9})/&#39;,$mobile)) exit(&#39;您的手机号码不正确&#39;);  
?>

But the above code is obviously It is not rigorous enough, because in this way, even a mobile phone number like "18888888888" can pass the verification, so we have to conduct more strict verification on it. Before going strict, please let us first take a look at the common mobile phone numbers in China. All three have those:
Mobile phone numbers: 134, 135, 136, 137, 138, 139, 150, 151, 157(TD), 158, 159, 187, 188

China Unicom mobile phone number: 130, 131, 132, 152, 155, 156, 185, 186

Telecom mobile phone number: 133, 153, 180, 189. (1349 Satcom)
Then based on the above characteristics, we can modify the code to such a rule. The code is as follows:

<?php 
   function checkMobile($str) 
   { 
     $pattern = “/^(13|15)d{9}$/”; 
     if (preg_match($pattern,$str)) 
     { 
       Return true; 
     } 
     else 
     { 
       Return false; 
     } 
   } 
  //调用函数 
  $str = checkMobile(“15800000001″); 
   if($str) 
   { 
   echo(“符合手机号码标准”); 
   } 
   else 
   { 
   echo(“不符合手机号码标准”); 
   } 
  ?>

The above can only start with 13 or 15. If there is a new paragraph, it will not work. We can modify it. The code is as follows:

function is_mobile($str){  
return preg_match("/^(((d{3}))|(d{3}-))?13d{9}$/", $str);  
}

Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.

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