3v4l.org

run code in 300+ PHP versions simultaneously
<?php function bar(&$b) { switch ($b) { case 'bar': $b = null; } } $a = ['foo' => 'bar']; bar($a['foo']); var_dump(null === $a['foo']);

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)
8.3.60.0120.00618.27
8.3.50.0100.00821.20
8.3.40.0110.00718.89
8.3.30.0130.00718.77
8.3.20.0070.00018.55
8.3.10.0050.00320.20
8.3.00.0050.00317.77
8.2.180.0170.00716.63
8.2.170.0180.00622.96
8.2.160.0070.00719.33
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0070.00021.09
8.2.120.0090.00026.35
8.2.110.0060.00320.86
8.2.100.0030.00918.05
8.2.90.0000.00819.15
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0030.00517.80
8.2.50.0070.00518.10
8.2.40.0080.00320.59
8.2.30.0040.00420.62
8.2.20.0030.00717.71
8.2.10.0040.00417.99
8.2.00.0000.00718.00
8.1.280.0200.00725.92
8.1.270.0030.00523.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.15
8.1.230.0070.00419.36
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0000.01017.35
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0040.00418.58
8.1.160.0070.00019.06
8.1.150.0030.00518.82
8.1.140.0000.00719.63
8.1.130.0040.00417.70
8.1.120.0020.00517.43
8.1.110.0000.00717.52
8.1.100.0040.00417.45
8.1.90.0040.00417.52
8.1.80.0000.00717.50
8.1.70.0040.00417.45
8.1.60.0000.00817.56
8.1.50.0050.00317.54
8.1.40.0000.00817.36
8.1.30.0000.00817.69
8.1.20.0000.00717.65
8.1.10.0040.00417.50
8.1.00.0000.00917.48
8.0.300.0070.00018.77
8.0.290.0050.00216.75
8.0.280.0000.00718.34
8.0.270.0000.00716.77
8.0.260.0030.00317.23
8.0.250.0000.00816.98
8.0.240.0080.00016.95
8.0.230.0000.00716.85
8.0.220.0040.00416.88
8.0.210.0040.00416.86
8.0.200.0060.00016.84
8.0.190.0080.00016.93
8.0.180.0030.00516.98
8.0.170.0060.00316.88
8.0.160.0050.00316.79
8.0.150.0000.00816.70
8.0.140.0000.00716.75
8.0.130.0050.00013.32
8.0.120.0040.00416.81
8.0.110.0040.00416.75
8.0.100.0000.00716.83
8.0.90.0000.00816.90
8.0.80.0160.00316.88
8.0.70.0040.00416.84
8.0.60.0050.00316.72
8.0.50.0050.00316.86
8.0.30.0170.00516.94
8.0.20.0130.00517.40
8.0.10.0070.00016.86
8.0.00.0100.01016.61
7.4.330.0050.00015.08
7.4.320.0000.00616.48
7.4.300.0000.00616.41
7.4.290.0000.00716.58
7.4.280.0000.00716.46
7.4.270.0030.00316.49
7.4.260.0000.00716.41
7.4.250.0040.00416.39
7.4.240.0000.00816.50
7.4.230.0030.00316.49
7.4.220.0030.01516.63
7.4.210.0070.00716.53
7.4.200.0070.00016.62
7.4.160.0140.00316.49
7.4.150.0120.00617.40
7.4.140.0090.01217.86
7.4.130.0070.01016.43
7.4.120.0140.00316.49
7.4.110.0110.00616.45
7.4.100.0140.00316.58
7.4.90.0140.00416.60
7.4.80.0060.01319.39
7.4.70.0040.01216.52
7.4.60.0060.00416.55
7.4.50.0070.00716.44
7.4.40.0070.01016.57
7.4.30.0120.00616.50
7.4.00.0070.00714.63
7.3.330.0030.00313.18
7.3.320.0000.00513.22
7.3.310.0040.00416.24
7.3.300.0000.00716.32
7.3.290.0050.00216.22
7.3.280.0080.00816.41
7.3.270.0040.01917.40
7.3.260.0120.00616.68
7.3.250.0110.00816.47
7.3.240.0080.01016.37
7.3.230.0070.01016.41
7.3.210.0200.00316.44
7.3.200.0130.00319.39
7.3.190.0080.00916.46
7.3.180.0090.00616.55
7.3.170.0080.00816.38
7.3.160.0080.00816.49
7.2.330.0070.01316.70
7.2.320.0100.01316.39
7.2.310.0080.00816.81
7.2.300.0120.01216.52
7.2.290.0090.01216.62
7.2.80.0000.01316.68
7.2.60.0070.00716.87
7.2.00.0000.01119.00
7.1.200.0000.01215.91
7.1.100.0000.01118.06
7.1.70.0030.00617.27
7.1.60.0130.00319.38
7.1.50.0130.00917.03
7.1.00.0070.07322.39
7.0.200.0460.01014.93
7.0.70.0030.07021.64
7.0.60.0000.07321.64
7.0.50.0030.06022.16
7.0.40.0030.07020.11
7.0.30.0030.08720.05
7.0.20.0000.05720.09
7.0.10.0030.08720.18
7.0.00.0000.04720.12
5.6.280.0070.07021.00
5.6.220.0030.04720.62
5.6.210.0030.07720.43
5.6.200.0030.07321.11
5.6.190.0130.06021.04
5.6.180.0130.07721.04
5.6.170.0000.08021.05
5.6.160.0070.07720.95
5.6.150.0030.08021.09
5.6.140.0000.06720.95
5.6.130.0070.06321.10
5.6.120.0100.08021.03
5.6.110.0130.07320.95
5.6.100.0130.08021.05
5.6.90.0200.06021.04
5.6.80.0030.08320.49
5.6.70.0100.05320.32
5.6.60.0170.04720.26
5.6.50.0070.07020.32
5.6.40.0130.06320.30
5.6.30.0070.04020.46
5.6.20.0070.08020.39
5.6.10.0070.07020.52
5.6.00.0100.06720.30
5.5.360.0030.08020.36
5.5.350.0030.05020.32
5.5.340.0070.09020.80
5.5.330.0000.06720.82
5.5.320.0100.05320.88
5.5.310.0000.07320.80
5.5.300.0000.04720.82
5.5.290.0070.07320.76
5.5.280.0030.09020.73
5.5.270.0070.08020.86
5.5.260.0070.08720.74
5.5.250.0070.07720.71
5.5.240.0100.04720.31
5.5.230.0000.08020.11
5.5.220.0000.08020.28
5.5.210.0000.08320.14
5.5.200.0100.07020.00
5.5.190.0030.08320.15
5.5.180.0000.07020.22
5.5.160.0070.05020.25
5.5.150.0070.05020.18
5.5.140.0030.03720.25
5.5.130.0070.04320.11
5.5.120.0070.03720.17
5.5.110.0000.05020.14
5.5.100.0070.03320.17
5.5.90.0030.03720.04
5.5.80.0000.04020.06
5.5.70.0000.04020.00
5.5.60.0030.03720.16
5.5.50.0030.03320.09
5.5.40.0000.03320.05
5.5.30.0000.03320.08
5.5.20.0070.02719.95
5.5.10.0070.03019.95
5.5.00.0000.04320.07
5.4.450.0070.07319.51
5.4.440.0100.07719.17
5.4.430.0030.07719.37
5.4.420.0070.07319.19
5.4.410.0030.06319.32
5.4.400.0130.04019.15
5.4.390.0070.06719.18
5.4.380.0070.07318.90
5.4.370.0030.06319.16
5.4.360.0030.07018.94
5.4.350.0100.04019.10
5.4.340.0130.07019.09
5.4.320.0030.04019.16
5.4.310.0030.04019.03
5.4.300.0000.03719.02
5.4.290.0070.03319.20
5.4.280.0030.03719.11
5.4.270.0000.04319.06
5.4.260.0030.03318.94
5.4.250.0000.03719.02
5.4.240.0100.03019.16
5.4.230.0030.03019.22
5.4.220.0030.03019.02
5.4.210.0030.03019.12
5.4.200.0000.03319.02
5.4.190.0000.03318.86
5.4.180.0030.03319.21
5.4.170.0000.03719.07
5.4.160.0000.04018.93
5.4.150.0000.03319.07
5.4.140.0000.03016.35
5.4.130.0030.02716.27
5.4.120.0000.04016.38
5.4.110.0000.03016.43
5.4.100.0030.02716.48
5.4.90.0000.03016.38
5.4.80.0000.03016.25
5.4.70.0000.04016.45
5.4.60.0070.03316.48
5.4.50.0100.02016.44
5.4.40.0070.02316.48
5.4.30.0000.03716.30
5.4.20.0000.03016.44
5.4.10.0000.03016.45
5.4.00.0030.02715.88
5.3.290.0030.03714.72
5.3.280.0000.03714.54
5.3.270.0030.03714.66
5.3.260.0030.03014.59
5.3.250.0030.03314.63
5.3.240.0000.03014.61
5.3.230.0000.03314.62
5.3.220.0000.03314.59
5.3.210.0030.04014.62
5.3.200.0070.03314.58
5.3.190.0000.03314.59
5.3.180.0000.03314.55
5.3.170.0000.04014.59
5.3.160.0000.03014.57
5.3.150.0030.04714.49
5.3.140.0000.03014.69
5.3.130.0030.02714.57
5.3.120.0000.03014.66
5.3.110.0000.03014.51
5.3.100.0000.03014.09
5.3.90.0030.03014.13
5.3.80.0030.02714.10
5.3.70.0000.03014.10
5.3.60.0030.02713.92
5.3.50.0070.02313.95
5.3.40.0000.03013.92
5.3.30.0030.02713.79
5.3.20.0000.03013.75
5.3.10.0000.02713.75
5.3.00.0030.02713.62
5.2.170.0030.02011.25
5.2.160.0000.02311.10
5.2.150.0030.02711.14
5.2.140.0000.02311.10
5.2.130.0000.02311.10
5.2.120.0000.02711.10
5.2.110.0000.02311.10
5.2.100.0000.03011.23
5.2.90.0000.02711.16
5.2.80.0000.03311.10
5.2.70.0000.02311.14
5.2.60.0030.02011.11
5.2.50.0000.04311.10
5.2.40.0000.05711.10
5.2.30.0000.06311.10
5.2.20.0030.06011.10
5.2.10.0030.05011.10
5.2.00.0070.05011.10
5.1.60.0070.03311.10
5.1.50.0000.05311.10
5.1.40.0030.04711.10
5.1.30.0000.04711.10
5.1.20.0070.05311.10
5.1.10.0070.05311.10
5.1.00.0000.04311.10
5.0.50.0000.04711.10
5.0.40.0000.03311.10
5.0.30.0070.06011.10
5.0.20.0000.04311.10
5.0.10.0000.04011.10
5.0.00.0030.06311.10
4.4.90.0000.01711.10
4.4.80.0000.01311.10
4.4.70.0000.01711.10
4.4.60.0000.01711.10
4.4.50.0000.03711.10
4.4.40.0000.05711.10
4.4.30.0000.03311.10
4.4.20.0000.03711.10
4.4.10.0000.03011.10
4.4.00.0070.04011.10
4.3.110.0000.03311.10
4.3.100.0000.03711.10
4.3.90.0030.03011.10
4.3.80.0000.06011.10
4.3.70.0030.03011.10
4.3.60.0100.02711.10
4.3.50.0000.03011.10
4.3.40.0000.03311.10
4.3.30.0000.03311.10
4.3.20.0000.03011.10
4.3.10.0030.03311.10
4.3.00.0000.03711.10

preferences:
34.96 ms | 401 KiB | 5 Q