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Re: Dynamic backreferences, finding last in a group [message #179067 is a reply to message #179066]

Sun, 09 September 2012 14:16

Scott Johnson
Messages: 196
Registered: January 2012

Karma:

Senior Member

On 9/9/2012 4:51 AM, Anders Wegge Keller wrote:
> Jason C <jwcarlton(at)gmail(dot)com> writes:
>
>> Any suggestions?
>
> Read the manual on regexp syntax, and use named patterns.
>

Wow that is a very good feature I never know about.

This I can imagine will come in very handy.

Thanks
Scotty

Example #4 Using named subpattern
<?php

$str = 'foobar: 2008';

preg_match('/(?P<name>\w+): (?P<digit>\d+)/', $str, $matches);

/* This also works in PHP 5.2.2 (PCRE 7.0) and later, however
* the above form is recommended for backwards compatibility */
// preg_match('/(?<name>\w+): (?<digit>\d+)/', $str, $matches);

print_r($matches);

?>

The above example will output:

Array
(
[0] => foobar: 2008
[name] => foobar
[1] => foobar
[digit] => 2008
[2] => 2008
)

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[Message index]

		Dynamic backreferences, finding last in a group By: jwcarlton on Sun, 09 September 2012 10:31
		Re: Dynamic backreferences, finding last in a group By: Anders Wegge Keller on Sun, 09 September 2012 11:51
		Re: Dynamic backreferences, finding last in a group By: Scott Johnson on Sun, 09 September 2012 14:16

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