3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(0); if (PHP_VERSION_ID >= 80100) { eval(<<<PHP enum A: string { case A = 'A'; case B = 'B'; } enum B: string { case A = 'A'; case B = 'B'; } PHP); } class Str { public function __toString(): string { return 'A'; } } function vd(string $expr, bool $onlyTrue = false): void { $val = eval('return ' .$expr . ';'); if ($onlyTrue && $val !== true) { return; } echo $expr . ': '; var_dump($val); } $comparisons = [ '"A"', '1', '5', 'B::A', '(object) []', '[]', 'true', 'false', 'null', '(new Str())', ]; if (PHP_VERSION_ID >= 80100) { foreach ($comparisons as $comp) { vd("A::A == {$comp}"); vd("A::A != {$comp}"); vd("{$comp} == A::A"); vd("{$comp} != A::A"); vd("in_array(A::A, [{$comp}])"); vd("in_array({$comp}, [A::A])"); echo "\n"; } } else { $comparisons = array_diff($comparisons, ['B::A']); } foreach ($comparisons as $c1) { foreach ($comparisons as $c2) { if ($c1 === $c2) { continue; } vd("{$c1} == {$c2}", true); vd("in_array({$c1}, [{$c2}])", true); } echo "\n"; }

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.4.120.0090.01220.64
8.4.110.0130.00720.53
8.4.100.0040.01118.02
8.4.90.0110.01117.96
8.4.80.0100.01219.78
8.4.70.0030.00618.01
8.4.60.0110.01118.66
8.4.50.0110.01218.80
8.4.40.0150.00720.38
8.4.30.0060.01622.16
8.4.20.0080.01520.75
8.4.10.0060.00321.87
8.3.250.0060.00518.98
8.3.240.0140.00816.63
8.3.230.0160.00816.54
8.3.220.0080.01318.55
8.3.210.0050.00416.79
8.3.200.0020.00716.61
8.3.190.0120.00817.29
8.3.180.0100.01117.03
8.3.170.0040.01518.88
8.3.160.0000.01017.30
8.3.150.0110.01117.41
8.3.140.0100.01016.81
8.3.130.0120.01216.84
8.3.120.0060.00320.81
8.3.110.0170.00320.94
8.3.100.0070.00316.85
8.3.90.0110.01126.77
8.3.80.0070.00318.55
8.3.70.0100.00716.62
8.3.60.0100.00616.50
8.3.50.0030.01316.72
8.3.40.0100.01321.68
8.3.30.0140.00718.54
8.3.20.0050.00324.18
8.3.10.0060.00324.66
8.3.00.0050.00326.16
8.2.290.0060.00319.15
8.2.280.0120.01118.57
8.2.270.0100.01017.48
8.2.260.0060.01317.09
8.2.250.0050.00316.76
8.2.240.0120.00918.73
8.2.230.0060.01522.58
8.2.220.0060.00324.06
8.2.210.0030.00626.77
8.2.200.0070.00318.29
8.2.190.0100.01016.88
8.2.180.0070.01017.00
8.2.170.0100.00718.81
8.2.160.0080.00822.96
8.2.150.0090.00625.66
8.2.140.0090.00024.66
8.2.130.0050.00326.16
8.2.120.0060.00319.79
8.2.110.0040.00722.02
8.2.100.0060.00617.91
8.2.90.0070.00417.88
8.2.80.0080.00518.97
8.2.70.0060.00317.50
8.2.60.0040.00817.62
8.2.50.0000.01217.61
8.2.40.0140.00017.63
8.2.30.0090.00617.49
8.2.20.0050.01017.63
8.2.10.0050.00517.38
8.2.00.0120.00317.63
8.1.330.0100.01216.55
8.1.320.0120.00916.29
8.1.310.0070.01318.54
8.1.300.0080.00418.28
8.1.290.0030.00630.84
8.1.280.0130.01025.92
8.1.270.0060.00324.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0100.01023.95
8.1.230.0030.00919.07
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0110.00017.38
8.1.190.0100.00217.00
8.1.180.0090.00417.13
8.1.170.0030.00917.47
8.1.160.0030.01017.00
8.1.150.0090.00317.13
8.1.140.0030.01017.12
8.1.130.0040.00717.47
8.1.120.0080.00317.46
8.1.110.0000.01317.13
8.1.100.0000.01017.47
8.1.90.0030.00817.47
8.1.80.0110.00317.35
8.1.70.0030.00817.25
8.1.60.0110.00317.23
8.1.50.0070.00717.38
8.1.40.0060.00517.47
8.1.30.0000.01017.59
8.1.20.0100.00017.47
8.1.10.0040.00717.47
8.1.00.0040.00917.34
8.0.300.0080.00019.76
8.0.290.0050.00316.88
8.0.280.0100.00316.75
8.0.270.0040.00916.88
8.0.260.0030.00616.88
8.0.250.0100.00317.00
8.0.240.0040.00717.00
8.0.230.0070.00316.88
8.0.220.0040.00816.88
8.0.210.0120.00016.88
8.0.200.0040.00817.00
8.0.190.0050.00516.75
8.0.180.0060.00616.88
8.0.170.0050.00517.00
8.0.160.0030.01016.88
8.0.150.0030.00816.88
8.0.140.0030.00616.88
8.0.130.0090.00316.88
8.0.120.0040.00816.88
8.0.110.0120.00416.52
8.0.100.0120.00416.52
8.0.90.0050.01016.63
8.0.80.0130.00316.52
8.0.70.0150.00316.52
8.0.60.0100.00716.52
8.0.50.0030.01216.52
8.0.30.0060.00916.52
8.0.20.0110.00416.52
8.0.10.0080.00416.75
7.4.330.0050.00516.52

preferences:
31.08 ms | 403 KiB | 5 Q