3v4l.org

run code in 300+ PHP versions simultaneously
<?php $value = "1234 4567 4568 4569 4560 3333AA 3334BB "; $allowedInputSeparators = array('\r\n', '\n', '\s', ',', ';', '|'); foreach($allowedInputSeparators as $separator) { echo "Testing "; var_dump($separator); if(preg_match('/' . $separator. '/', $value)) { echo $separator . PHP_EOL; } }
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Testing string(4) "\r\n" Testing string(2) "\n" \n Testing string(2) "\s" \s Testing string(1) "," Testing string(1) ";" Testing string(1) "|" |
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Testing string(4) "\r\n" Testing string(2) "\n" Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/STLjg on line 15 \nPHP_EOLTesting string(2) "\s" Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/STLjg on line 15 \sPHP_EOLTesting string(1) "," Testing string(1) ";" Testing string(1) "|" Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/STLjg on line 15 |PHP_EOL

preferences:
282.02 ms | 402 KiB | 460 Q