PHP Regex to extract values in string

Question

https://regex101.com/r/xTu3Zo/1/

I have the following regex:

\[([^]]+)]

And the following string:

Je naam (verplicht) [text* your-test] Je e-mailadres (verplicht) [email* your-tester] Onderwerp [text your-testerer] Je bericht [textarea your-testererer] [area-without-attribute] 1

I want to extract everything inbetween the brackets (for example "your-test") without "text*".

Desired output:

your-test 
your-tester 
your-testerer 
your-testererer 
area-without-attribute

How can I achieve this? Thanks!

Answer 1

You may use

\[(?:\w+\*?\s+)?([^][]+)]

See the regex demo. Details:

• \[ - a [ char
• (?:\w+\*?\s+)? - an optional sequence of:
  • \w+ - 1+ word chars
  • \*? - an optional asterisk
  • \s+ - 1+ whitespaces
• ([^][]+) - Group 1: any 1 or more chars other than [ and ]
• ] - a ] char.

See the PHP demo:

$text = "Je naam (verplicht) [text* your-test] Je e-mailadres (verplicht) [email* your-tester] Onderwerp [text your-testerer] Je bericht [textarea your-testererer] [area-without-attribute]";
if (preg_match_all('~\[(?:\w+\*?\s+)?([^][]+)]~', $text, $matches)) {
    print_r($matches[1]);
}

Output:

Array
(
    [0] => your-test
    [1] => your-tester
    [2] => your-testerer
    [3] => your-testererer
    [4] => area-without-attribute
)