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

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

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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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