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run code in 300+ PHP versions simultaneously
<?php $d = dir("/etc/php5"); echo "Handle: " . $d->handle . "\n"; echo "Path: " . $d->path . "\n"; while (false !== ($entry = $d->read())) {    echo $entry."\n"; } $d->close();
Output for 5.4.0 - 5.4.34
Parse error: syntax error, unexpected '"Handle: "' (T_CONSTANT_ENCAPSED_STRING) in /in/Sd7nD on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/Sd7nD on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/Sd7nD on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Sd7nD on line 3
Process exited with code 255.

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