PHP to determine if a valid email address implementation Code _php tutorial

Source: Internet
Author: User
Tags valid email address
This article introduces a custom function, that is, to determine whether a valid e-mail address, in fact, we often say that the regular verification email address, good to have a face to the classmate to see.
The code is as follows Copy Code

Function name: checkemailaddr ($C _mailaddr)

Role: Determine whether a valid email address

Parameters: $C _mailaddr (e-mail address to be detected)

Return Value: Boolean value

Remark: None

function checkemailaddr ($C _mailaddr)

{

if (!eregi ("^[_a-z0-9-]+ (. [ _a-z0-9-]+) *@[a-z0-9-]+ (. [ a-z0-9-]+) *$ ",

$C _mailaddr))

(!ereg ("^[_a-za-z0-9-]+ (. [ _a-za-z0-9-]+) *@[_a-za-z0-9-]+ (. [ _a-za-z0-9-]+) *$ ",

$c _mailaddr))

{

return false;

}

return true;

}

http://www.bkjia.com/PHPjc/631663.html www.bkjia.com true http://www.bkjia.com/PHPjc/631663.html techarticle This article introduces a custom function, that is, to determine whether a valid e-mail address, in fact, we often say that the regular verification email address, good to have a face to the classmate to see. Code ...

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