How to use regular rules to determine whether it is a mobile phone number in php

This article mainly introduces how to use regular expressions in php to determine whether it is a mobile phone number. Interested friends can refer to it. I hope it will be helpful to everyone.

The code is as follows:

$phonenumber = '13712345678';
if(preg_match("/^1[34578]{1}\d{9}$/",$phonenumber)){
    echo "是手机号码";
}else{
    echo "不是手机号码";
}

"^" matches the beginning of the text, and "$" matches the end of the text.

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