CODEWITHSUNDEEP
phpregexpreg-replacepreg-replace-callback
user2696439
user2696439

Reputation:

How to get a particular string using preg_replace?

i want to get a particular value from string in php. Following is the string

 $string = 'users://data01=[1,2]/data02=[2,3]/*';
 preg_replace('/(.*)\[(.*)\](.*)\[(.*)\](.*)/', '$2', $str);

i want to get value of data01. i mean [1,2].

How can i achieve this using preg_replace?

How can solve this ?

Upvotes: 0

Views: 183

Answers (3)

Raggamuffin
Raggamuffin

Reputation: 1760

preg_replace is used to replace by regular expression!

I think you want to use preg_match_all() to get each data attribute from the string.

The regex you want is:

$string = 'users://data01=[1,2]/data02=[2,3]/*';
preg_match_all('#data[0-9]{2}=(\[[0-9,]+\])#',$string,$matches);

print_r($matches);

Array
(
    [0] => Array
        (
            [0] => data01=[1,2]
            [1] => data02=[2,3]
        )


    [1] => Array
        (
            [0] => [1,2]
            [1] => [2,3]
        )

)

I have tested this as working.

Upvotes: 0

Chris Rymer
Chris Rymer

Reputation: 713

preg_replace() is the wrong tool, I have used preg_match_all() in case you need that other item later and trimmed down your regex to capture the part of the string you are looking for. 

    $string = 'users://data01=[1,2]/data02=[2,3]/*';
    preg_match_all('/\[([0-9,]+)\]/',$string,$match);

    print_r($match);

/*
     print_r($match) output:

        Array
        (
        [0] => Array
            (
                [0] => [1,2]
                [1] => [2,3]
            )
        [1] => Array
            (
                [0] => 1,2
                [1] => 2,3
            )
        )
*/

    echo "Your match: " . $match[1][0];

    ?>

This enables you to have the captured characters or the matched pattern , so you can have [1,2] or just 1,2

Upvotes: 1

Niet the Dark Absol
Niet the Dark Absol

Reputation: 324650

preg_replace is for replacing stuff. preg_match is for extracting stuff.

So you want:

preg_match('/(.*?)\[(.*?)\](.*?)\[(.*?)\](.*)/', $str, $match);
var_dump($match);

See what you get, and work from there.

Upvotes: 0

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