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run code in 300+ PHP versions simultaneously
<?php //preg_match( '/^\[#(\d+)\]/', '[#1234] Subject', $matches); //echo $matches[0]; // 1234 if (preg_match("/php/", "php")) { print "1 Got match!\n"; } if (preg_match("/php/", "PHP")) { print "2 Got match!\n"; } if (preg_match("/php/i", "i nternet")) { print "3 Got match!\n"; }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 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, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 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
1 Got match!

preferences:
213.05 ms | 405 KiB | 313 Q