3v4l.org

run code in 300+ PHP versions simultaneously
<?php <?php echo "Hello, world!"; ?>
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.31
Parse error: syntax error, unexpected '<' in /in/2hre4 on line 2
Process exited with code 255.

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202.71 ms | 1387 KiB | 68 Q