PHP regular expression verification (email address, Url address, phone number, zip code)

The content that needs to be verified in the example of this article: email address, URL address, phone number, postal code. The verification method is shared with everyone for your reference. The specific content is as follows

1. Verification of email address

<&#63;php
/* 校验邮件地址*/
function checkMail($email) {
//用户名，由“\w”格式字符、“-”或“.”组成
$email_name= "\w|(\w[-.\w]*\w)";
//域名中的第一段，规则和用户名类似，不包括点号“.”
$code_at= "@";
$per_domain= "\w|(\w[-\w]*\w)";
//域名中间的部分，至多两段
$mid_domain= "(\." .$per_domain. "){0,2}";
//域名的最后一段，只能为“.com”、“.org”或“.net”
$end_domain= "(\.(com|net|org))";
$rs= preg_match(
"/^{$email_name}@{$per_domain}{$mid_domain}{$end_domain}$/",
$email
);
return (bool)$rs;
}
//测试，下面均返回成功
var_dump( checkMail("root@localhost") );
var_dump( checkMail("Frank.Roulan@esun.edu.org") );
var_dump( checkMail("Tom.024-1234@x-power_1980.mail-address.com") );
&#63;>

2. URL address verification

<&#63;php
/* 校验URL地址*/
function checkDomain($domain)
{
return ereg("^(http|ftp)s&#63; ://(www\.)&#63;.+(com|net|org)$", $domain);
}
$rs= checkDomain("www.taodoor.com");//返回假
$rs= checkDomain("http://www.taodoor.com");//返回真
&#63;>

3, phone number

<&#63;php
/* 校验电话号码*/
function checkTelno($tel)
{
//去掉多余的分隔符
$tel= ereg_replace("[\(\)\. -]", "", $tel);
//仅包含数字，至少应为一个6位的电话号（即没有区号）
if(ereg("^\d+$", $tel))
{
return true;
}else{
return false;
}
}
$rs= checkTelno("(086)-0411-12345678");//返回真
&#63;>

4, postal code verification

<&#63;php
/* 校验邮政编码*/
function checkZipcode($code)
{
//去掉多余的分隔符
$code = preg_replace("/[\. -]/", "", $code);
//包含一个6位的邮政编码
if(preg_match("/^\d{6}$/", $code))
{
return true;
}else{
return false;
}
}
$rs= checkZipCode("123456");//返回真
&#63;>

I hope this article will be helpful to everyone learning PHP programming.

The above introduces PHP regular expression verification (email address, Url address, phone number, postal code), including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.