3v4l.org

run code in 300+ PHP versions simultaneously
<?php class X { const WHATEVER = 1; public function why() { return self::WHATEVER; } public function whyNot() { return $this::WHATEVER; } public function againWhy() { return static::WHATEVER; } public function againWhyNot() { return X::WHATEVER; } } $x = new X(); echo $x->why()."\n"; echo $x->whyNot()."\n"; echo $x->againWhy()."\n"; echo $x->againWhyNot()."\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)
8.3.70.0100.01016.38
8.3.60.0090.01318.55
8.3.50.0100.00716.54
8.3.40.0110.00718.84
8.3.30.0120.00318.60
8.3.20.0070.00020.16
8.3.10.0000.00721.90
8.3.00.0050.00319.68
8.2.180.0110.01116.50
8.2.170.0070.00722.96
8.2.160.0070.01419.05
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00819.31
8.2.120.0080.00026.35
8.2.110.0030.00720.48
8.2.100.0060.00617.88
8.2.90.0040.00419.20
8.2.80.0090.00017.97
8.2.70.0040.00417.25
8.2.60.0060.00317.93
8.2.50.0060.00318.10
8.2.40.0090.00020.42
8.2.30.0050.00219.16
8.2.20.0030.00618.07
8.2.10.0020.00517.99
8.2.00.0070.00018.05
8.1.280.0120.00325.92
8.1.270.0060.00920.64
8.1.260.0020.00526.35
8.1.250.0040.00428.09
8.1.240.0070.00322.73
8.1.230.0090.00318.96
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.00
8.1.190.0110.00017.23
8.1.180.0040.00418.10
8.1.170.0060.00318.49
8.1.160.0000.00719.01
8.1.150.0050.00218.88
8.1.140.0040.00419.57
8.1.130.0070.00318.95
8.1.120.0040.00417.36
8.1.110.0000.00717.44
8.1.100.0000.00817.42
8.1.90.0040.00417.39
8.1.80.0040.00417.41
8.1.70.0040.00417.45
8.1.60.0100.00017.45
8.1.50.0050.00317.47
8.1.40.0030.00617.49
8.1.30.0040.00417.64
8.1.20.0070.00317.69
8.1.10.0040.00417.48
8.1.00.0000.00817.57
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0030.00318.32
8.0.270.0070.00017.13
8.0.260.0000.00916.87
8.0.250.0020.00516.85
8.0.240.0080.00016.83
8.0.230.0030.00316.86
8.0.220.0070.00016.92
8.0.210.0070.00016.85
8.0.200.0000.00616.85
8.0.190.0080.00016.95
8.0.180.0070.00016.96
8.0.170.0040.00416.80
8.0.160.0040.00416.88
8.0.150.0030.00516.84
8.0.140.0070.00016.78
8.0.130.0030.00313.32
8.0.120.0030.00516.79
8.0.110.0070.00016.88
8.0.100.0040.00416.93
8.0.90.0000.00716.77
8.0.80.0060.01216.78
8.0.70.0040.00416.85
8.0.60.0040.00416.91
8.0.50.0040.00416.80
8.0.30.0080.00816.99
8.0.20.0100.00917.40
8.0.10.0030.00517.08
8.0.00.0150.00316.82
7.4.330.0020.00215.55
7.4.320.0030.00316.56
7.4.300.0040.00416.60
7.4.290.0000.00816.61
7.4.280.0040.00416.40
7.4.270.0000.00716.52
7.4.260.0000.00716.49
7.4.250.0040.00416.37
7.4.240.0000.00716.37
7.4.230.0070.00016.49
7.4.220.0100.00716.54
7.4.210.0100.00516.58
7.4.200.0000.00716.39
7.4.160.0060.00916.36
7.4.150.0090.01017.40
7.4.140.0110.00917.86
7.4.130.0140.00616.52
7.4.120.0100.00916.49
7.4.110.0090.00916.40
7.4.100.0140.00316.61
7.4.90.0070.01016.30
7.4.80.0080.00819.39
7.4.70.0130.00316.59
7.4.60.0060.00916.57
7.4.50.0000.01616.33
7.4.40.0030.01316.41
7.4.30.0090.00816.26
7.4.00.0060.01215.24
7.3.330.0000.00613.04
7.3.320.0030.00313.38
7.3.310.0030.00616.40
7.3.300.0030.00316.27
7.3.290.0070.00016.25
7.3.280.0080.00816.31
7.3.270.0190.00017.40
7.3.260.0090.00816.33
7.3.250.0090.00916.34
7.3.240.0080.01016.51
7.3.230.0080.01116.46
7.3.210.0120.00616.26
7.3.200.0060.01116.24
7.3.190.0060.00916.34
7.3.180.0080.00816.22
7.3.170.0140.00316.23
7.3.160.0090.01216.44
7.2.330.0030.01416.61
7.2.320.0130.01016.47
7.2.310.0030.01316.73
7.2.300.0030.01716.80
7.2.290.0050.01116.77
7.2.60.0200.00316.51
7.2.50.0100.00716.88
7.1.200.0040.00815.58
7.1.70.0260.01415.31
7.1.60.0500.01833.14
7.1.50.0400.01332.64
7.1.40.0570.01132.46
7.1.30.0570.00932.52
7.1.20.0410.01332.66
7.1.10.0160.01214.61
7.1.00.0250.01214.71
7.0.200.0170.02114.91
7.0.190.0260.01414.83
7.0.180.1260.00914.35
7.0.170.0260.01414.55
7.0.160.0240.01114.53
7.0.150.0390.01314.39
7.0.140.0340.00714.47
7.0.130.0290.00914.59
7.0.120.0170.01314.52
7.0.110.0260.01614.46
7.0.100.0190.01414.48
7.0.90.0230.01114.56
7.0.80.0250.01014.71
7.0.70.0300.01114.38
7.0.60.0290.01214.14
7.0.50.0230.01314.56
7.0.40.0210.01714.72
7.0.30.0270.01214.84
7.0.20.0310.00814.82
7.0.10.0280.01214.65
7.0.00.0200.00814.52

preferences:
40.87 ms | 400 KiB | 5 Q