CODEWITHSUNDEEP
phpregex
Bill Software Engineer
Bill Software Engineer

Reputation: 7782

How do I run this regex in PHP?

I have this complex PHP I copied online:

[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?

How do I run it in PHP? I try this:

$test = 'Joe Doe <[email protected]>, [email protected], root, "Bob Smith" <[email protected]>';
$regex = '/[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/';
print preg_match_all($regex, $test , $matches);
print_r($matches);

I try to escape it, but the complexity escapes me instead.

EDIT: Online Regex Tester show this regex is correct, I just don't know how to get it into PHP:

http://regexpal.com/?flags=g&regex=%5Ba-z0-9!%23%24%25%26%27*%2B%2F%3D%3F%5E_%60%7B%7C%7D~-%5D%2B(%3F%3A%5C.%5Ba-z0-9!%23%24%25%26%27*%2B%2F%3D%3F%5E_%60%7B%7C%7D~-%5D%2B)*%40(%3F%3A%5Ba-z0-9%5D(%3F%3A%5Ba-z0-9-%5D*%5Ba-z0-9%5D)%3F%5C.)%2B%5Ba-z0-9%5D(%3F%3A%5Ba-z0-9-%5D*%5Ba-z0-9%5D)%3F&input=Joe%20Doe%20%3Cdoe%40example.com%3E%2C%20postmaster%40example.com%2C%20root%2C%20%22Bob%20Smith%22%20%3Cbob%40smith.com%3E

Upvotes: 1

Views: 141

Answers (2)

user557597
user557597

Reputation:

I use a regex processing tool here. String utilities do all this for you.

Delimeter possiblities: 

 ~

 '~[a-z0-9!#$%&\'*+/=?^_`{|}\~-]+(?:\.[a-z0-9!#$%&\'*+/=?^_`{|}\~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?~'


 /

 '/[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/'


 @

 '@[a-z0-9!#$%&\'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+/=?^_`{|}~-]+)*\@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?@'


 <>

 '<[a-z0-9!#$%&\'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?>'


 ;

 ';[a-z0-9!#$%&\'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?;'


 #

 '#[a-z0-9!\#$%&\'*+/=?^_`{|}~-]+(?:\.[a-z0-9!\#$%&\'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?#'

Upvotes: 0

Amal Murali
Amal Murali

Reputation: 76646

You are using a forward slash / as the delimiter. Since you're using the / character inside the expression, you need to escape it using a backslash character - so, instead of /, you'll need to write \/.

The corrected version would be:

$regex = '/[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&\'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/';

Demo

Upvotes: 5

Related Questions