Re: Dynamic backreferences, finding last in a group

From	Scott Johnson <noonehome@chalupasworld.com>
Newsgroups	comp.lang.php
Subject	Re: Dynamic backreferences, finding last in a group
Date	2012-09-09 07:16 -0700
Organization	A noiseless patient Spider
Message-ID	<k2i8cd$ecm$1@dont-email.me> (permalink)
References	<7ebf5417-2d22-4585-b50a-ba661025ae36@googlegroups.com> <87bohffm75.fsf@huddi.jernurt.dk>

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On 9/9/2012 4:51 AM, Anders Wegge Keller wrote:
> Jason C <jwcarlton@gmail.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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Dynamic backreferences, finding last in a group Jason C <jwcarlton@gmail.com> - 2012-09-09 03:31 -0700
  Re: Dynamic backreferences, finding last in a group Anders Wegge Keller <wegge@wegge.dk> - 2012-09-09 13:51 +0200
    Re: Dynamic backreferences, finding last in a group Scott Johnson <noonehome@chalupasworld.com> - 2012-09-09 07:16 -0700

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