3v4l.org

run code in 300+ PHP versions simultaneously
<?php $text = 'some text [BUTTON link="www.test.com" label="Click here"] some text'; echo preg_replace( '/\[button link="([^"]+)" label="([^"]+)"]/i', '<a href="$1">$2</a>', $text );
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
some text <a href="www.test.com">Click here</a> some text

preferences:
99.75 ms | 402 KiB | 121 Q