3v4l.org

run code in 300+ PHP versions simultaneously
<?php const ✓ = true; const ✕ = false; functio> $right - 0.0001) && ($left < $right + 0.0001); } function ≡($left, $right) { return $left === $right; } function ≢($left, $right) { return $left !== $right; } $a = 1; $b = 2 - 1; echo ≡($a, $b)."\n"; echo ≅($a, $a + 0.000001)."\n";
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.32
Parse error: syntax error, unexpected ')' in /in/VW97Z on line 7
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
Parse error: syntax error, unexpected T_CONST in /in/VW97Z on line 4
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_CONST in /in/VW97Z on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/VW97Z on line 4
Process exited with code 255.
preferences:
248.96 ms | 1395 KiB | 123 Q