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9.0

PHP preg_match email validation

Asked by allanch08 in PHP Scripting Language

Tags: PHP

Hello experts!

I'm trying to implement preg_match for email validation. According to wikipedia email addresses are defined by RFC 5322 and can contain the following characters in the local part:
! # $ % & ' * + - / = ? ^ _ ` { | } ~

is this true and if so should the regular expression for the email validation take this into account? Currently I have this to check the local part:

[0-9a-zA-Z][0-9a-zA-Z_.-]+@

which checks that the first character is a number, lower or upper case letter, followed by any numbers, upper/lower case letters, underscore, hypthen or full stops. Can this be improved upon?
[+][-]08/18/09 09:06 AM, ID: 25124683Accepted Solution

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Zone: PHP Scripting Language
Tags: PHP
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Solution Provided By: Odengr
Participating Experts: 3
Solution Grade: A
 
[+][-]08/18/09 09:12 AM, ID: 25124759Assisted Solution

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[+][-]08/18/09 09:22 AM, ID: 25124882Author Comment

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[+][-]08/18/09 11:18 AM, ID: 25125990Assisted Solution

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[+][-]08/18/09 11:49 AM, ID: 25126261Assisted Solution

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[+][-]08/18/09 02:36 PM, ID: 25127925Assisted Solution

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[+][-]08/18/09 02:44 PM, ID: 25127975Assisted Solution

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[+][-]08/18/09 11:02 PM, ID: 25129933Author Comment

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