3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = array('url/?page=2&filter=value', 'url/?page=2', 'url/?filter=value&page=2', 'url/?filter=value&page=2&filter2=value'); foreach($strings as $string){ echo rtrim(preg_replace('/([?&])page=[^&]*&?/', '$1', $string), '&?') . PHP_EOL; }

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29.2 ms | 405 KiB | 5 Q