need help for regex

Hi,

I need a regex (may be together with a php function) to retrieve
information within '[' and ']' in a line of text. Here is an example:

hello world, example [demo|123] line with some [$55] yesys [no].

I need to retrieve all the three pieces of text enclosed in [] pairs.

Thanks in advance!

Alex Shi


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Alex Shi wrote:

> I need a regex (may be together with a php function) to retrieve
> information within '[' and ']' in a line of text. Here is an example:
>
> hello world, example [demo|123] line with some [$55] yesys [no].
>
> I need to retrieve all the three pieces of text enclosed in [] pairs.

$foo = 'hello world, example [demo|123] line with some [$55] yesys [no].';
preg_match_all("/\[(.*)\]/U", $foo, $matches);
print_r($matches);

This gives you:
Array
(
[0] => Array
(
[0] => [demo|123]
[1] => [$55]
[2] => [no]
)

[1] => Array
(
[0] => demo|123
[1] => $55
[2] => no
)

)


--
Chris Hope
The Electric Toolbox - http://www.electrictoolbox.com/

Alex Shi wrote:

> I need a regex (may be together with a php function) to retrieve
> information within '[' and ']' in a line of text. Here is an example:
>
> hello world, example [demo|123] line with some [$55] yesys [no].
>
> I need to retrieve all the three pieces of text enclosed in [] pairs.

// retrieve data
$string =
"hello world, example [demo|123] line with some [$55] yesys [no].";
preg_match_all('~\[([^\]]*)\]~', $string, $matches);

// look at the result
print_r($matches);

// print all values
foreach ($matches[1] as $value) {
echo($value . '<br>');
}

// access first value
echo($matches[1][0] . '<br>');

// access third value
echo($matches[1][2] . '<br>');


Regards,
Matthias

> Alex Shi wrote:
>
> > I need a regex (may be together with a php function) to retrieve
> > information within '[' and ']' in a line of text. Here is an example:
> >
> > hello world, example [demo|123] line with some [$55] yesys [no].
> >
> > I need to retrieve all the three pieces of text enclosed in [] pairs.
>
> $foo = 'hello world, example [demo|123] line with some [$55] yesys [no].';
> preg_match_all("/\[(.*)\]/U", $foo, $matches);
> print_r($matches);
>
> This gives you:
> Array
> (
> [0] => Array
> (
> [0] => [demo|123]
> [1] => [$55]
> [2] => [no]
> )
>
> [1] => Array
> (
> [0] => demo|123
> [1] => $55
> [2] => no
> )
>
> )
>
>
> --
> Chris Hope
> The Electric Toolbox - http://www.electrictoolbox.com/

Thanks!

Alex Shi