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run code in 300+ PHP versions simultaneously
<?php $x = '<?php $x = \'*\'; $x = str_replace(chr(0x2A), $x, $x); $x = addslashes($x); $x = str_replace("\n", \'<br />\', $x); echo $x; ?>'; $x = str_replace("\n", '<br />', $x); $x = str_replace(chr(0x2A), $x, $x); $x = addslashes($x); echo $x; ?>
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<?php<br />$x = \'<?php<br />$x = \'*\';<br />$x = str_replace(chr(0x2A), $x, $x);<br />$x = addslashes($x);<br />$x = str_replace(\"\\n\", \'<br />\', $x);<br />echo $x;<br />?>\';<br />$x = str_replace(chr(0x2A), $x, $x);<br />$x = addslashes($x);<br />$x = str_replace(\"\\n\", \'<br />\', $x);<br />echo $x;<br />?>

preferences:
207.29 ms | 406 KiB | 348 Q