CODEWITHSUNDEEP
phpregex
DanielRead
DanielRead

Reputation: 2794

PHP - Find substrings between two regex expressions

I need a function that returns all substrings between a regex expression that matches anything and a delimiter.

$str = "{random_one}[SUBSTRING1] blah blah blah {random_two}[SUBSTRING2] blah blah blah{random_one}[SUBSTRING3]";

$resultingArray = getSubstrings($str)

$resultingArray should result in:
array(
    [0]: "SUBSTRING1",
    [1]: "SUBSTRING2",
    [2]: "SUBSTRING3"
)

I've been messing with regex with no luck. Any help would be greatly appreciated!

Upvotes: 1

Views: 30

Answers (1)

ishegg
ishegg

Reputation: 9927

You can achieve that with this regular expression:

/{.+?}\[(.+?)\]/i

Details

{.+?}   # anything between curly brackets, one or more times, ungreedily
\[      # a bracket, literally
(.+?)   # anything one or more times, ungreedily. This is your capturing group - what you're after
\]      # close bracket, literally
i       # flag for case insensitivity

In PHP it would look like this:

<?php
$string = "{random_one}[SUBSTRING1] blah [SUBSTRINGX] blah blah {random_two}[SUBSTRING2] blah blah blah{random_one}[SUBSTRING3]";
preg_match_all("/{.+?}\[(.+?)\]/i", $string, $matches);
var_dump($matches[1]);

Demo

Upvotes: 2

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