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run code in 300+ PHP versions simultaneously
<?php echo <<<FOO FOO4 FOO ,2;
Output for 7.1.25 - 7.1.31, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.4 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
FOO42
Output for 7.3.0 - 7.3.8
Parse error: syntax error, unexpected '4' (T_LNUMBER), expecting ',' or ';' in /in/pLiqq on line 4
Process exited with code 255.

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95.45 ms | 401 KiB | 172 Q