3v4l.org

run code in 300+ PHP versions simultaneously
<?php t_ereg("d"); t_ereg("c"); t_ereg("ct"); t_ereg("coat"); t_ereg("do"); t_ereg("dog"); t_ereg("dogcat"); t_ereg("docat"); t_ereg("doc"); t_ereg("cat"); t_ereg("c1234abct"); function t_ereg ( $line ) { $pattern='dog|c*t'; echo "$pattern=>\"$line\":"; echo (preg_match("/$pattern/", $line))?"1":"0"; echo "\n"; }

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41.91 ms | 402 KiB | 5 Q