3v4l.org

run code in 300+ PHP versions simultaneously
<?php $variable = ''; var_dump($variable); function foo() { global $variable; var_dump($variable); } foo(); foo(); var_dump($variable);

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)
8.3.60.0120.00318.43
8.3.50.0130.00622.05
8.3.40.0160.00318.54
8.3.30.0070.00719.09
8.3.20.0040.00420.02
8.3.10.0000.00823.48
8.3.00.0080.00020.59
8.2.180.0120.00618.03
8.2.170.0140.00322.96
8.2.160.0100.00320.36
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00019.13
8.2.110.0130.00422.20
8.2.100.0080.00420.42
8.2.90.0040.00419.13
8.2.80.0090.00017.97
8.2.70.0000.00817.38
8.2.60.0090.00017.91
8.2.50.0060.00318.07
8.2.40.0060.00317.97
8.2.30.0040.00418.24
8.2.20.0040.00417.68
8.2.10.0070.00018.05
8.2.00.0040.00419.50
8.1.280.0090.00625.92
8.1.270.0040.00423.82
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0060.00323.97
8.1.230.0040.00719.22
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0030.00617.23
8.1.190.0000.00817.13
8.1.180.0040.00418.10
8.1.170.0080.00018.52
8.1.160.0070.00021.85
8.1.150.0080.00018.44
8.1.140.0000.00717.33
8.1.130.0030.00317.74
8.1.120.0030.00317.39
8.1.110.0000.00817.34
8.1.100.0000.00717.28
8.1.90.0000.00717.37
8.1.80.0000.00817.42
8.1.70.0040.00417.35
8.1.60.0090.00317.57
8.1.50.0000.00817.52
8.1.40.0080.00017.55
8.1.30.0030.00517.57
8.1.20.0050.00317.63
8.1.10.0000.00717.31
8.1.00.0000.00817.36
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00718.29
8.0.270.0030.00317.09
8.0.260.0060.00017.23
8.0.250.0040.00416.88
8.0.240.0050.00216.90
8.0.230.0040.00416.91
8.0.220.0000.00716.70
8.0.210.0020.00516.86
8.0.200.0060.00016.90
8.0.190.0040.00416.92
8.0.180.0040.00416.78
8.0.170.0040.00416.87
8.0.160.0070.00016.81
8.0.150.0000.00716.73
8.0.140.0000.00716.69
8.0.130.0030.00313.18
8.0.120.0040.00416.67
8.0.110.0000.00716.78
8.0.100.0040.00416.79
8.0.90.0040.00316.68
8.0.80.0160.00616.88
8.0.70.0040.00416.64
8.0.60.0050.00216.77
8.0.50.0070.00016.73
8.0.30.0080.01117.08
8.0.20.0100.01117.40
8.0.10.0040.00416.80
8.0.00.0090.01216.66
7.4.330.0000.00615.01
7.4.320.0070.00016.57
7.4.300.0000.00616.59
7.4.290.0070.00016.47
7.4.280.0000.00716.39
7.4.270.0070.00016.44
7.4.260.0030.00316.47
7.4.250.0050.00316.55
7.4.240.0020.00516.56
7.4.230.0060.00016.62
7.4.220.0150.00616.45
7.4.210.0060.01316.45
7.4.200.0030.00316.61
7.4.160.0000.01716.49
7.4.150.0100.01017.40
7.4.140.0120.00517.86
7.4.130.0070.01116.43
7.4.120.0040.01216.45
7.4.110.0160.00816.50
7.4.100.0080.01116.51
7.4.90.0060.01616.51
7.4.80.0140.01019.39
7.4.70.0060.01016.50
7.4.60.0060.01116.40
7.4.50.0030.00316.36
7.4.40.0070.01616.43
7.4.30.0060.00916.40
7.4.00.0060.01215.07
7.3.330.0070.00013.06
7.3.320.0000.00513.25
7.3.310.0000.00716.08
7.3.300.0070.00016.20
7.3.290.0040.01216.31
7.3.280.0120.00616.25
7.3.270.0070.01017.40
7.3.260.0040.01516.47
7.3.250.0120.00916.20
7.3.240.0110.01116.25
7.3.230.0070.01116.57
7.3.210.0140.00716.51
7.3.200.0090.00919.39
7.3.190.0070.01116.50
7.3.180.0070.00816.21
7.3.170.0090.00616.27
7.3.160.0100.00616.50
7.3.120.0060.00614.96
7.2.330.0060.01816.61
7.2.320.0100.01316.25
7.2.310.0080.01516.27
7.2.300.0130.01016.68
7.2.290.0090.00616.18
7.1.70.0050.00517.21
7.1.60.0090.01519.70
7.1.50.0130.00716.99
7.1.00.0030.07722.30
7.0.200.0030.00716.51
7.0.140.0100.06722.09
7.0.100.0100.08019.98
7.0.90.0130.05719.86
7.0.80.0130.03019.86
7.0.70.0130.07719.93
7.0.60.0030.07319.84
7.0.50.0130.07720.26
7.0.40.0130.07320.15
7.0.30.0130.04020.02
7.0.20.0170.07320.08
7.0.10.0030.05720.04
7.0.00.0070.06020.09
5.6.280.0030.07021.02
5.6.250.0070.07020.63
5.6.240.0070.06020.52
5.6.230.0070.08720.64
5.6.220.0100.06720.62
5.6.210.0100.07720.61
5.6.200.0100.07321.00
5.6.190.0100.08321.03
5.6.180.0100.07321.18
5.6.170.0100.08021.05
5.6.160.0170.07021.08
5.6.150.0070.08020.95
5.6.140.0000.05720.95
5.6.130.0130.07321.04
5.6.120.0100.08321.11
5.6.110.0130.04020.92
5.6.100.0030.04321.16
5.6.90.0130.08020.97
5.6.80.0000.08020.43
5.6.70.0070.06320.40
5.6.60.0070.05020.46
5.6.50.0030.05720.50
5.6.40.0170.07020.47
5.6.30.0000.05720.38
5.6.20.0100.07320.52
5.6.10.0000.06720.31
5.6.00.0030.08320.28
5.5.380.0100.07320.42
5.5.370.0100.03720.40
5.5.360.0070.07320.41
5.5.350.0070.04020.46
5.5.340.0030.04020.65
5.5.330.0030.08020.85
5.5.320.0200.06720.77
5.5.310.0030.08320.80
5.5.300.0030.05020.86
5.5.290.0070.07020.80
5.5.280.0100.06720.89
5.5.270.0200.06720.77
5.5.260.0130.07720.82
5.5.250.0070.08720.64
5.5.240.0100.04020.31
5.5.230.0130.07320.30
5.5.220.0030.08020.20
5.5.210.0030.04720.22
5.5.200.0230.06320.29
5.5.190.0070.04720.12
5.5.180.0130.07320.13
5.5.160.0000.08720.14
5.5.150.0000.05020.13
5.5.140.0070.07320.25
5.5.130.0030.08320.11
5.5.120.0100.07320.18
5.5.110.0130.04020.13
5.5.100.0030.05020.18
5.5.90.0000.06320.09
5.5.80.0030.07720.16
5.5.70.0070.04720.09
5.5.60.0030.08020.10
5.5.50.0030.05020.12
5.5.40.0200.06320.14
5.5.30.0030.04020.06
5.5.20.0100.05320.02
5.5.10.0070.07720.05
5.5.00.0070.06320.06
5.4.450.0130.04019.39
5.4.440.0070.08019.46
5.4.430.0100.05319.36
5.4.420.0070.07319.50
5.4.410.0070.06719.14
5.4.400.0000.04718.99
5.4.390.0030.07719.01
5.4.380.0030.05018.95
5.4.370.0070.04018.90
5.4.360.0070.07319.05
5.4.350.0030.04018.89
5.4.340.0000.05019.21
5.4.320.0070.07319.14
5.4.310.0100.07319.17
5.4.300.0100.06319.18
5.4.290.0130.05019.14
5.4.280.0130.07319.20
5.4.270.0030.08318.90
5.4.260.0030.07319.14
5.4.250.0030.03718.87
5.4.240.0070.07019.09
5.4.230.0130.06019.16
5.4.220.0100.07319.06
5.4.210.0030.05019.18
5.4.200.0100.06019.00
5.4.190.0170.04719.02
5.4.180.0070.07719.04
5.4.170.0100.05319.14
5.4.160.0100.06318.93
5.4.150.0070.07719.03
5.4.140.0030.04716.41
5.4.130.0070.07016.25
5.4.120.0100.06716.45
5.4.110.0100.07016.43
5.4.100.0100.06016.43
5.4.90.0070.03716.49
5.4.80.0100.06716.38
5.4.70.0070.07016.50
5.4.60.0030.04316.32
5.4.50.0030.05016.41
5.4.40.0030.04016.55
5.4.30.0070.07316.44
5.4.20.0030.04716.32
5.4.10.0000.04016.33
5.4.00.0170.05315.88
5.3.290.0030.04314.77
5.3.280.0200.05714.60
5.3.270.0100.07014.67
5.3.260.0100.07314.65
5.3.250.0070.04714.67
5.3.240.0000.08014.66
5.3.230.0000.05014.70
5.3.220.0130.05014.59
5.3.210.0170.06314.59
5.3.200.0000.07314.54
5.3.190.0070.04714.63
5.3.180.0130.03314.54
5.3.170.0070.07314.51
5.3.160.0070.08014.68
5.3.150.0030.07714.51
5.3.140.0070.07314.66
5.3.130.0030.05014.61
5.3.120.0000.06714.66
5.3.110.0000.07314.61
5.3.100.0070.04014.02
5.3.90.0030.07314.00
5.3.80.0170.06714.16
5.3.70.0070.04014.07
5.3.60.0070.06714.01
5.3.50.0100.05713.99
5.3.40.0170.06014.00
5.3.30.0000.05013.82
5.3.20.0070.07713.61
5.3.10.0000.05313.64
5.3.00.0130.05013.57
5.2.170.0000.03311.93
5.2.160.0070.06011.93
5.2.150.0070.06011.93
5.2.140.0030.04711.93
5.2.130.0100.05311.93
5.2.120.0100.05011.93
5.2.110.0070.06011.93
5.2.100.0100.06011.93
5.2.90.0070.05011.93
5.2.80.0030.05711.93
5.2.70.0030.03311.93
5.2.60.0070.06011.93
5.2.50.0100.04311.93
5.2.40.0030.04011.93
5.2.30.0000.04311.93
5.2.20.0070.05711.93
5.2.10.0000.03711.93
5.2.00.0030.06711.93
5.1.60.0100.05011.93
5.1.50.0030.05011.93
5.1.40.0030.03311.93
5.1.30.0000.05711.93
5.1.20.0070.05311.93
5.1.10.0030.03011.93
5.1.00.0130.04311.93
5.0.50.0000.04011.93
5.0.40.0000.03711.93
5.0.30.0000.06711.93
5.0.20.0030.02011.93
5.0.10.0030.04311.93
5.0.00.0000.06711.93
4.4.90.0000.04011.93
4.4.80.0000.04011.93
4.4.70.0030.01711.93
4.4.60.0000.01711.93
4.4.50.0030.01711.93
4.4.40.0000.05011.93
4.4.30.0070.01711.93
4.4.20.0000.03311.93
4.4.10.0000.04011.93
4.4.00.0070.04711.93
4.3.110.0000.02711.93
4.3.100.0100.03011.93
4.3.90.0030.03311.93
4.3.80.0000.05011.93
4.3.70.0070.03011.93
4.3.60.0000.03011.93
4.3.50.0000.03011.93
4.3.40.0030.04311.93
4.3.30.0030.02011.93
4.3.20.0070.03011.93
4.3.10.0030.03011.93
4.3.00.0000.02011.93

preferences:
37.84 ms | 401 KiB | 5 Q