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php验证邮箱和ip地址最简单方法汇总_PHP

WBOY
WBOYOriginal
2016-05-28 15:04:59811browse

在开发中验证邮箱、url、数字是我们常用的一些例子,下面整理了验证邮箱、url、数字程序,大家有兴趣可参考一下.

例子代码如下:

public static function isEmail( $email ) 
{ 
return preg_match("/^([a-z0-9]*[-_\.]?[a-z0-9]+)*@([a-z0-9]*[-_]?[a-z0-9]+)+[\.][a-z]{2,4}([\.][a-z]{2})?$/i" , $email ); 
} 
public static function isNumber( $num ) 
{ 
return is_numeric( $num ); 
} 
public static function isUrl( $url , $preg = false ) 
{ 
if( $preg ) 
{ 
$status = preg_match ( "/^([^:\/\/])+\:\/\/[\w-]+\.[\w-.\?\/]+$/" , $url ); 
} 
else 
{ 
$status = filter_var( $url , FILTER_VALIDATE_URL ); 
} 
return $status; 
} 

补充:利用php自带函数来操作.

php验证邮箱,代码如下:

$email = 'fengdingbo@gmail.com';             
$result = filter_var($email, FILTER_VALIDATE_EMAIL); 
var_dump($result); // string(20) "fengdingbo@gmail.com" 

php验证url地址,代码如下:

$url = "http://www.bitsCN.com"; 
$result = filter_var($url, FILTER_VALIDATE_URL); 
var_dump($result); // string(25) "http://www.bitsCN.com" 

php验证ip地址,代码如下:

$url = "192.168.1.110"; 
$result = filter_var($url, FILTER_VALIDATE_IP); 
var_dump($result); // string(13) "192.168.1.110" 
// 该方法也可以用来验证ipv6。 
$url = "2001:DB8:2de::e13";              
$result = filter_var($url, FILTER_VALIDATE_IP); 
var_dump($result); // string(17) "2001:DB8:2de::e13"

以上就是php验证邮箱和ip地址最简单方法,希望对大家的学习有所帮助。

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