3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { static $count; function b() { if (null === static::$count) { static::$count = 1; return ['a', 'b']; } return static::$count++; } } $a = new A; var_dump($a->b(), $a->b()); A::$count = null; $a = new A; var_dump($a->b()[$a->b()]);

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)
8.3.60.0120.00618.55
8.3.50.0130.00521.92
8.3.40.0070.00718.78
8.3.30.0070.00719.21
8.3.20.0070.00720.20
8.3.10.0050.00322.08
8.3.00.0040.00422.39
8.2.180.0120.00316.35
8.2.170.0170.00322.96
8.2.160.0040.01120.98
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0140.00426.16
8.2.120.0030.00519.49
8.2.110.0090.00020.52
8.2.100.0080.00319.52
8.2.90.0080.00019.12
8.2.80.0030.00518.04
8.2.70.0080.00017.63
8.2.60.0000.00918.03
8.2.50.0060.00318.07
8.2.40.0070.00418.16
8.2.30.0030.00618.11
8.2.20.0060.00317.66
8.2.10.0040.00417.75
8.2.00.0040.00417.55
8.1.280.0130.00625.92
8.1.270.0070.00022.05
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0060.00323.88
8.1.230.0100.00019.02
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0090.00317.36
8.1.190.0050.00317.48
8.1.180.0040.00418.61
8.1.170.0000.00818.59
8.1.160.0000.00721.80
8.1.150.0040.00418.58
8.1.140.0000.00817.39
8.1.130.0050.00317.29
8.1.120.0030.00617.29
8.1.110.0040.00417.44
8.1.100.0040.00417.39
8.1.90.0030.00317.43
8.1.80.0080.00017.28
8.1.70.0030.00317.25
8.1.60.0050.00317.58
8.1.50.0000.00717.57
8.1.40.0050.00317.45
8.1.30.0080.00017.65
8.1.20.0090.00017.66
8.1.10.0070.00017.57
8.1.00.0060.00317.52
8.0.300.0040.00418.77
8.0.290.0000.00817.05
8.0.280.0050.00318.45
8.0.270.0050.00217.18
8.0.260.0070.00016.66
8.0.250.0030.00516.78
8.0.240.0000.00716.88
8.0.230.0000.00716.89
8.0.220.0030.00316.70
8.0.210.0030.00316.80
8.0.200.0000.00616.88
8.0.190.0000.00816.92
8.0.180.0030.00716.91
8.0.170.0030.00516.89
8.0.160.0030.00516.72
8.0.150.0040.00416.88
8.0.140.0040.00416.70
8.0.130.0030.00313.27
8.0.120.0060.00316.78
8.0.110.0000.00816.82
8.0.100.0070.00016.79
8.0.90.0040.00416.65
8.0.80.0040.01116.82
8.0.70.0050.00216.83
8.0.60.0030.00416.77
8.0.50.0050.00216.63
8.0.30.0090.01116.99
8.0.20.0130.00717.40
8.0.10.0000.00717.07
8.0.00.0110.00716.70
7.4.330.0020.00215.00
7.4.320.0000.00616.46
7.4.300.0030.00316.58
7.4.290.0070.00016.50
7.4.280.0000.00716.60
7.4.270.0040.00416.63
7.4.260.0090.00016.39
7.4.250.0040.00416.44
7.4.240.0000.00716.63
7.4.230.0070.00016.61
7.4.220.0000.01716.68
7.4.210.0080.00616.55
7.4.200.0070.00016.50
7.4.190.0000.00716.66
7.4.160.0120.00316.74
7.4.150.0070.01017.40
7.4.140.0150.00617.86
7.4.130.0110.00616.53
7.4.120.0070.01116.65
7.4.110.0030.01316.53
7.4.100.0030.01416.59
7.4.90.0030.01816.56
7.4.80.0080.00819.39
7.4.70.0070.01016.48
7.4.60.0060.00916.41
7.4.50.0040.00416.56
7.4.40.0000.01322.77
7.4.30.0060.01116.44
7.4.00.0090.00614.88
7.3.330.0000.00613.34
7.3.320.0050.00013.16
7.3.310.0070.00016.20
7.3.300.0000.00716.25
7.3.290.0070.00716.29
7.3.280.0050.01316.35
7.3.270.0060.01017.40
7.3.260.0090.01116.42
7.3.250.0120.01216.45
7.3.240.0060.01116.52
7.3.230.0130.00316.44
7.3.210.0050.01316.34
7.3.200.0060.01519.39
7.3.190.0090.00916.49
7.3.180.0110.00416.17
7.3.170.0030.01316.46
7.3.160.0060.01016.38
7.3.120.0070.00314.75
7.2.330.0060.01216.61
7.2.320.0170.00616.74
7.2.310.0070.01016.70
7.2.300.0080.00916.77
7.2.290.0090.00616.85
7.2.60.0040.01116.73
7.2.00.0030.01219.54
7.1.200.0030.00915.84
7.1.100.0030.00718.21
7.1.70.0000.00817.14
7.1.60.0100.01619.82
7.1.50.0090.01316.98
7.1.00.0030.07722.50
7.0.200.0000.01016.65
7.0.140.0070.07022.07
7.0.100.0100.03321.74
7.0.90.0000.08321.73
7.0.80.0000.09021.72
7.0.70.0000.08321.70
7.0.60.0000.08721.74
7.0.50.0000.05322.13
7.0.40.0000.08720.19
7.0.30.0070.04320.15
7.0.20.0030.08020.11
7.0.10.0030.06320.13
7.0.00.0000.05320.17
5.6.280.0130.06320.86
5.6.250.0030.04720.61
5.6.240.0070.07320.68
5.6.230.0000.05320.48
5.6.220.0070.07020.58
5.6.210.0130.07320.43
5.6.200.0030.06021.04
5.6.190.0030.06021.06
5.6.180.0070.07321.07
5.6.170.0100.07321.14
5.6.160.0070.06720.96
5.6.150.0030.04320.96
5.6.140.0000.09321.00
5.6.130.0130.04021.17
5.6.120.0000.07721.05
5.6.110.0070.06021.05
5.6.100.0030.07021.00
5.6.90.0100.07321.02
5.6.80.0070.07020.34
5.6.70.0170.06720.30
5.6.60.0100.06320.39
5.6.50.0000.04720.52
5.6.40.0030.08320.38
5.6.30.0000.08020.38
5.6.20.0100.06020.37
5.6.10.0030.03720.42
5.6.00.0070.06720.28
5.5.380.0070.03720.35
5.5.370.0200.06320.44
5.5.360.0030.07720.33
5.5.350.0030.08720.31
5.5.340.0000.07720.71
5.5.330.0070.07320.73
5.5.320.0030.05720.89
5.5.310.0030.08720.91
5.5.300.0030.08020.91
5.5.290.0130.07720.64
5.5.280.0100.08020.88
5.5.270.0030.08320.75
5.5.260.0000.06720.83
5.5.250.0030.06020.64
5.5.240.0070.07720.21
5.5.230.0070.05020.27
5.5.220.0030.07320.26
5.5.210.0070.07020.25
5.5.200.0030.06720.08
5.5.190.0000.06020.23
5.5.180.0000.08320.20
5.5.160.0000.07319.95
5.5.150.0000.05020.10
5.5.140.0030.08020.12
5.5.130.0000.08320.12
5.5.120.0030.08020.25
5.5.110.0030.07720.10
5.5.100.0000.04720.10
5.5.90.0030.08019.97
5.5.80.0070.06319.95
5.5.70.0030.06720.14
5.5.60.0000.07720.05
5.5.50.0070.07720.14
5.5.40.0070.07020.05
5.5.30.0030.07320.05
5.5.20.0030.07319.93
5.5.10.0030.04720.04
5.5.00.0100.07020.10
5.4.450.0170.06719.18
5.4.440.0000.08019.55
5.4.430.0070.07319.37
5.4.420.0070.07719.45
5.4.410.0030.06719.24
5.4.400.0000.07319.09
5.4.390.0100.07718.95
5.4.380.0070.05018.85
5.4.370.0000.04018.85
5.4.360.0070.06719.03
5.4.350.0070.07319.20
5.4.340.0100.06019.03
5.4.320.0070.07018.90
5.4.310.0070.07319.07
5.4.300.0070.07019.13
5.4.290.0030.06719.05
5.4.280.0030.05318.95
5.4.270.0070.07718.94
5.4.260.0000.05719.13
5.4.250.0000.06019.02
5.4.240.0130.06019.20
5.4.230.0000.04018.85
5.4.220.0000.07019.09
5.4.210.0030.07319.20
5.4.200.0030.07318.89
5.4.190.0070.06319.03
5.4.180.0000.06019.08
5.4.170.0100.06719.19
5.4.160.0070.06719.11
5.4.150.0030.06019.02
5.4.140.0100.05716.44
5.4.130.0030.07316.41
5.4.120.0030.05716.24
5.4.110.0070.04316.49
5.4.100.0030.07016.46
5.4.90.0030.06316.49
5.4.80.0030.07316.32
5.4.70.0030.07716.32
5.4.60.0030.03716.45
5.4.50.0000.08016.47
5.4.40.0100.03716.52
5.4.30.0000.03316.40
5.4.20.0000.03716.36
5.4.10.0000.07016.24
5.4.00.0030.06715.85
5.3.290.0030.07015.64
5.3.280.0030.07715.64
5.3.270.0030.06715.64
5.3.260.0030.07315.64
5.3.250.0030.06715.64
5.3.240.0030.04315.64
5.3.230.0000.07315.64
5.3.220.0000.04715.64
5.3.210.0100.06015.64
5.3.200.0000.05015.64
5.3.190.0030.07715.64
5.3.180.0030.06315.64
5.3.170.0000.06715.64
5.3.160.0000.06315.64
5.3.150.0030.07715.64
5.3.140.0030.04315.64
5.3.130.0030.06715.64
5.3.120.0000.05015.64
5.3.110.0030.07015.64
5.3.100.0070.07015.64
5.3.90.0030.04315.64
5.3.80.0030.05715.64
5.3.70.0030.06715.64
5.3.60.0030.05715.64
5.3.50.0070.06715.64
5.3.40.0000.07315.64
5.3.30.0030.07015.64
5.3.20.0000.06015.64
5.3.10.0000.05315.64
5.3.00.0030.07015.64
5.2.170.0000.03715.64
5.2.160.0000.03015.64
5.2.150.0030.06315.64
5.2.140.0030.05315.64
5.2.130.0000.04715.64
5.2.120.0070.04315.64
5.2.110.0070.04715.64
5.2.100.0100.05015.64
5.2.90.0000.05315.64
5.2.80.0030.02715.64
5.2.70.0030.05315.64
5.2.60.0000.06015.64
5.2.50.0000.06015.64
5.2.40.0030.05315.64
5.2.30.0000.05015.64
5.2.20.0030.05015.64
5.2.10.0000.03015.64
5.2.00.0070.02315.64
5.1.60.0030.04315.64
5.1.50.0000.05015.64
5.1.40.0000.04315.64
5.1.30.0070.03015.64
5.1.20.0000.05015.64
5.1.10.0000.05015.64
5.1.00.0030.05015.64
5.0.50.0000.04015.64
5.0.40.0000.03015.64
5.0.30.0030.03315.64
5.0.20.0000.04715.64
5.0.10.0030.04015.64
5.0.00.0000.06315.64
4.4.90.0030.03315.64
4.4.80.0030.01315.64
4.4.70.0030.01715.64
4.4.60.0000.03715.64
4.4.50.0000.02315.64
4.4.40.0000.04715.64
4.4.30.0030.03315.64
4.4.20.0070.01715.64
4.4.10.0030.03315.64
4.4.00.0030.02315.64
4.3.110.0030.01315.64
4.3.100.0000.02315.64
4.3.90.0030.03015.64
4.3.80.0000.03015.64
4.3.70.0070.01315.64
4.3.60.0000.03015.64
4.3.50.0030.02315.64
4.3.40.0030.04715.64
4.3.30.0030.03315.64
4.3.20.0030.03015.64
4.3.10.0000.03715.64
4.3.00.0000.02015.64

preferences:
45.87 ms | 401 KiB | 5 Q