简单的几个验证函数

<?php
 
//用来验证手机号码
function checkMobil($string=''){
    $pattern = "/^[1]\d{10}$/";
    if(preg_match($pattern, $string)){
        return TRUE;
    }else{
        return FALSE;
    }
}
  
$mobil = '13510066807';
$result = checkMobil($mobil);
var_dump($result);//TRUE;
  
  
//用来验证座机号码
function checkPhone($string=''){
    $pattern = "/^(\d{3,4}-)\d{7,8}$/";
    if(preg_match($pattern, $string)) return TRUE;
    else return FALSE;
}
$phone = '0755-6661027';
$result = checkPhone($phone);
var_dump($result);//TRUE;
  
//用来验证电子邮箱号码
function checkEmail($string=''){
    $pattern="/^([0-9A-Za-z\\-_\\.]+)@([0-9a-z]+\\.[a-z]{2,3}(\\.[a-z]{2})?)$/i";
    if(preg_match($pattern, $string)) return TRUE;
    else return FALSE;
}
$email = 'asdfasdf23@gmail.com';
$resutl = checkEmail($email);
var_dump($result);//TRUE;