3v4l.org

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<?php define('✓', true); define('✕', false); function ≠($left, $right) { return $left != $right; } function ≅($left, $right) { return ($left > $right - 0.0001) && ($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 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
1 1
preferences:
196.71 ms | 406 KiB | 342 Q