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PHP verification class (validation of email, numbers, strings, etc.)

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Release: 2016-07-25 08:56:43
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本文分享一个php 验证类的代码,可用于验证Email地址、验证是否数字、验证日期等。有需要的朋友不妨作个参考。

php 验证类的代码,如下:

<?php 
/**
* 基于服务器端的输入验证
* 包括 Email、数字、日期等的验证
* 编辑整理:程序员之家 bbs.it-home.org
*/

class Validation 
{ 
//检测电子邮件格式是否正确,返回true或false
function is_email($email) 
    { 
        if(!preg_match("/^[A-Za-z0-9\._\-+]+@[A-Za-z0-9_\-+]+(\.[A-Za-z0-9_\-+]+)+$/",$email)) 
            return false; 
        return true; 
    } 
// End of is_email Function 

//检查给定的数字符号/无符号数
//返回true或false。
    function is_number($number) 
    { 
        if(!preg_match("/^\-?\+?[0-9e1-9]+$/",$number)) 
            return false; 
        return true; 
    } 
// End of is_number Function 

//检查否无符号数字
//返回true或false
function is_unsign_number($number) 
    { 
        if(!preg_match("/^\+?[0-9]+$/",$number)) 
            return false; 
        return true; 
    } 
// End of is_unsign_number Function 
     
//检查给定的字符串是否数字、字母等的组合
//返回true或false
    function is_alpha_numeric($str) 
    { 
        if(!preg_match("/^[A-Za-z0-9 ]+$/",$str)) 
            return false; 
        return true; 
    } 
// End of is_alpha_numeric Function 

//这个函数检查给定的日期是有效或无效。
//返回true或false。
function is_date($d) 
    { 
        if(!preg_match("/^(\d){1,2}[-\/](\d){1,2}[-\/]\d{4}$/",$d,$matches)) 
            return -1;//Bad Date Format 
        $T = split("[-/\\]",$d); 
        $MON=array(0,31,28,31,30,31,30,31,31,30,31,30,31); 
        $M = $T[0]; 
        $D = $T[1]; 
        $Y = $T[2]; 
        return $D>0 && ($D<=$MON[$M] ||    $D==29 && $Y%4==0 && ($Y%100!=0 || $Y%400==0));  
    } 
    //End of is_data function 
}
?>
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2,php 验证类的调用示例:

<?php 
require("validations.inc.php"); 

$val=new Validation; 

if($val->is_email($_POST['email'])) 
    echo "Email is Valid!"; 
else 
    echo "Not a valid email"; 
echo "<br>"; 

if($val->is_number($_POST['number'])) 
    echo "number is Valid!"; 
else 
    echo "Not a valid number"; 
echo "<br>"; 

if($val->is_alpha_numeric($_POST['String'])) 
    echo "String is Valid!"; 
else 
    echo "Not a valid String"; 
echo "<br>"; 
if($val->is_date($_POST['date'])>0) 
    echo "date is Valid!"; 
else 
    echo "Not a valid date"; 
echo "<br>"; 

?> 
<form name='form1' method='post' action=""> 
<table> 
<tr><td>Enter Email :</td><td><input name='email'></td></tr> 
<tr><td>Enter Number :</td><td><input name='number'></td></tr> 
<tr><td>Enter Date :</td><td><input name='date'>(mm-dd-yyyy)</td></tr> 
<tr><td>Enter String :</td><td><input name='String'></td></tr> 
<tr><td>Press Submit :</td><td><input name='Submit' type='submit'></td></tr> 
</table> 
</form>
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