3v4l.org

run code in 300+ PHP versions simultaneously
<?php function () { echo "lolwut\n"; } (); $a = "\x7f"; ${'a'}(); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Parse error: syntax error, unexpected character 0x7F, expecting "(" in /in/2gL1v on line 2
Process exited with code 255.
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Unexpected character in input: '' (ASCII=127) state=0 in /in/2gL1v on line 2 Warning: Unexpected character in input: '' (ASCII=127) state=0 in /in/2gL1v on line 7 Parse error: syntax error, unexpected '(' in /in/2gL1v on line 7
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33
lolwut lolwut
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245.54 ms | 402 KiB | 330 Q