3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace some\amespace; class bar { function foo() { return "foo"; } } echo "blah: "; var_dump (class_exists('bar'));

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)
8.3.60.0070.00718.18
8.3.50.0300.00217.25
8.3.40.0120.00618.45
8.3.30.0100.00318.72
8.3.20.0050.00318.63
8.3.10.0030.00518.60
8.3.00.0040.00419.15
8.2.180.0160.00316.50
8.2.170.0070.00722.96
8.2.160.0120.00318.66
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0000.00826.16
8.2.120.0060.00320.69
8.2.110.0060.00320.30
8.2.100.0080.00417.78
8.2.90.0000.00717.72
8.2.80.0060.00322.30
8.2.70.0040.00417.50
8.2.60.0040.00417.50
8.2.50.0040.00417.55
8.2.40.0040.00417.62
8.2.30.0070.00317.48
8.2.20.0000.00917.49
8.2.10.0000.00817.60
8.2.00.0000.00717.54
8.1.280.0110.00725.92
8.1.270.0000.00723.99
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0060.00320.70
8.1.230.0060.00622.14
8.1.220.0000.00917.74
8.1.210.0000.00818.77
8.1.200.0040.00417.23
8.1.190.0040.00717.13
8.1.180.0040.00418.10
8.1.170.0070.00017.62
8.1.160.0030.00618.55
8.1.150.0040.00418.49
8.1.140.0060.00317.27
8.1.130.0070.00017.31
8.1.120.0050.00217.38
8.1.110.0040.00417.21
8.1.100.0070.00017.25
8.1.90.0040.00417.38
8.1.80.0040.00417.35
8.1.70.0070.00017.30
8.1.60.0070.00417.41
8.1.50.0000.00717.34
8.1.40.0040.00417.41
8.1.30.0060.00317.55
8.1.20.0000.00717.60
8.1.10.0030.00617.40
8.1.00.0000.00717.39
8.0.300.0030.00619.86
8.0.290.0090.00016.63
8.0.280.0000.00817.93
8.0.270.0030.00317.10
8.0.260.0040.00416.70
8.0.250.0040.00416.83
8.0.240.0080.00016.71
8.0.230.0000.00816.80
8.0.220.0070.00016.81
8.0.210.0030.00316.64
8.0.200.0000.00716.82
8.0.190.0000.00816.79
8.0.180.0090.00016.82
8.0.170.0040.00416.68
8.0.160.0040.00416.82
8.0.150.0050.00516.71
8.0.140.0030.00616.76
8.0.130.0030.00313.21
8.0.120.0050.00516.71
8.0.110.0040.00416.69
8.0.100.0040.00416.79
8.0.90.0030.00316.73
8.0.80.0000.01416.68
8.0.70.0040.00416.80
8.0.60.0040.00416.77
8.0.50.0080.00016.79
8.0.30.0070.01016.94
8.0.20.0080.01016.78
8.0.10.0000.00716.93
8.0.00.0120.00716.62
7.4.330.0050.00012.85
7.4.320.0030.00316.49
7.4.300.0030.00316.39
7.4.290.0070.00016.52
7.4.280.0000.00916.41
7.4.270.0030.00316.37
7.4.260.0030.00313.10
7.4.250.0000.00916.26
7.4.240.0040.00416.48
7.4.230.0030.00716.30
7.4.220.0060.01016.52
7.4.210.0050.01116.47
7.4.200.0100.00016.49
7.4.190.0000.00716.46
7.4.160.0060.01216.47
7.4.150.0060.01316.53
7.4.140.0100.01316.46
7.4.130.0030.01216.37
7.4.120.0160.00316.43
7.4.110.0070.01716.37
7.4.100.0180.00616.32
7.4.90.0060.01616.25
7.4.80.0100.00719.39
7.4.70.0080.00816.44
7.4.60.0030.01516.26
7.4.50.0050.00016.23
7.4.40.0000.01616.34
7.4.30.0100.00716.38
7.4.00.0070.00714.79
7.3.330.0030.00313.13
7.3.320.0030.00313.13
7.3.310.0050.00316.18
7.3.300.0030.00316.22
7.3.290.0080.00816.18
7.3.280.0100.00816.05
7.3.270.0110.00616.20
7.3.260.0060.01116.43
7.3.250.0130.00616.37
7.3.240.0090.00916.11
7.3.230.0130.00416.47
7.3.210.0130.00316.36
7.3.200.0090.01716.30
7.3.190.0130.00916.32
7.3.180.0060.00916.23
7.3.170.0130.00516.32
7.3.160.0090.01516.23
7.3.120.0090.00614.79
7.2.330.0150.00616.48
7.2.320.0110.01216.72
7.2.310.0040.01516.40
7.2.300.0110.00516.65
7.2.290.0090.01016.30
7.2.00.0100.00719.20
7.1.100.0080.00417.91
7.1.70.0030.00716.94
7.1.60.0000.02119.30
7.1.50.0130.01016.53
7.1.00.0130.05722.40
7.0.200.0000.01016.79
7.0.140.0070.06721.96
7.0.120.0000.07722.04
7.0.60.0030.04719.94
7.0.50.0070.04317.85
7.0.40.0030.08320.20
7.0.30.0230.06320.21
7.0.20.0170.05020.23
7.0.10.0170.04320.11
7.0.00.0070.09020.09
5.6.280.0130.06320.89
5.6.210.0000.04320.46
5.6.200.0070.05018.24
5.6.190.0070.07320.61
5.6.180.0300.07720.59
5.6.170.0330.07020.40
5.6.160.0070.05320.68
5.6.150.0030.06718.19
5.6.140.0100.07318.11
5.6.130.0030.04718.15
5.6.120.0100.08021.00
5.6.110.0100.07720.98
5.6.100.0070.09020.98
5.6.90.0100.08021.13
5.6.80.0130.07720.38
5.6.70.4230.04320.53
5.5.350.0370.06320.43
5.5.340.0100.07717.95
5.5.330.0070.08020.58
5.5.320.0300.05320.43
5.5.310.0300.05020.35
5.5.300.0070.04018.02
5.5.290.0170.04017.93
5.5.280.0230.07020.80
5.5.270.0100.04020.87
5.5.260.0100.04020.87
5.5.250.0130.06720.56
5.5.240.0130.07320.27
5.4.450.0000.04719.48
5.4.440.0100.03719.53
5.4.430.0100.07319.56
5.4.420.0030.04719.21
5.4.410.0170.05019.31
5.4.400.0100.04019.16
5.4.390.0100.06719.16
5.4.380.0070.04719.25
5.4.370.0100.05018.92
5.4.360.0030.04019.09
5.4.350.0030.07719.00
5.4.340.0070.08319.25
5.4.320.0030.06019.20
5.4.310.0070.07018.94
5.4.300.0070.05319.12
5.4.290.0030.04718.87
5.4.280.0030.04319.11
5.4.270.0070.06719.23
5.4.260.0100.06019.17
5.4.250.0100.03319.14
5.4.240.0100.04318.98
5.4.230.0100.07319.20
5.4.220.0130.07019.00
5.4.210.0030.06019.11
5.4.200.0100.04719.23
5.4.190.0070.07319.11
5.4.180.0100.05018.86
5.4.170.0030.06718.96
5.4.160.0030.04019.06
5.4.150.0070.05719.23
5.4.140.0070.06016.41
5.4.130.0130.05716.44
5.4.120.0070.06016.31
5.4.110.0100.06716.38
5.4.100.0200.03316.30
5.4.90.0070.03316.38
5.4.80.0070.07716.41
5.4.70.0100.06716.28
5.4.60.0070.06316.46
5.4.50.0030.07016.46
5.4.40.0130.06016.50
5.4.30.0030.04016.34
5.4.20.0170.04316.46
5.4.10.0070.06016.40
5.4.00.0030.04315.91
5.3.290.0070.05714.71
5.3.280.0100.06014.60
5.3.270.0070.06314.75
5.3.260.0070.07314.64
5.3.250.0100.07714.63
5.3.240.0000.07314.59
5.3.230.0030.04714.62
5.3.220.0030.08314.60
5.3.210.0030.06014.62
5.3.200.0070.06014.72
5.3.190.0130.06314.61
5.3.180.0070.06714.44
5.3.170.0070.04714.57
5.3.160.0200.06314.60
5.3.150.0070.07314.44
5.3.140.0030.05014.43
5.3.130.0130.05714.59
5.3.120.0100.07314.61
5.3.110.0030.04314.56
5.3.100.0000.06314.04
5.3.90.0100.03014.03
5.3.80.0000.07013.99
5.3.70.0130.04014.09
5.3.60.0070.04313.96
5.3.50.0100.07014.08
5.3.40.0030.08013.95
5.3.30.0030.05313.95
5.3.20.0070.08013.60
5.3.10.0030.05713.67
5.3.00.0100.05013.61
5.2.170.0000.03711.11
5.2.160.0070.03311.04
5.2.150.0070.05311.08
5.2.140.0030.06711.30
5.2.130.0100.05011.05
5.2.120.0000.06311.03
5.2.110.0130.05711.06
5.2.100.0100.03011.04
5.2.90.0000.06011.00
5.2.80.0130.06011.19
5.2.70.0030.05711.02
5.2.60.0030.03311.20
5.2.50.0070.06010.83
5.2.40.0100.05710.93
5.2.30.0100.04311.05
5.2.20.0070.06010.92
5.2.10.0030.06310.94
5.2.00.0030.04010.72
5.1.60.0100.0479.97
5.1.50.0030.0309.94
5.1.40.0030.0339.88
5.1.30.0000.05010.34
5.1.20.0030.02710.36
5.1.10.0100.05310.04
5.1.00.0130.04710.14
5.0.50.0070.0378.54
5.0.40.0000.0338.48
5.0.30.0000.0338.16
5.0.20.0000.0208.25
5.0.10.0070.0238.16
5.0.00.0030.0378.16
4.4.90.0030.0138.16
4.4.80.0030.0138.16
4.4.70.0030.0378.16
4.4.60.0100.0278.16
4.4.50.0000.0338.16
4.4.40.0070.0338.16
4.4.30.0070.0178.16
4.4.20.0000.0178.16
4.4.10.0100.0178.16
4.4.00.0000.0578.16
4.3.110.0030.0238.16
4.3.100.0000.0308.16
4.3.90.0030.0138.16
4.3.80.0070.0478.16
4.3.70.0000.0278.16
4.3.60.0070.0138.16
4.3.50.0000.0178.16
4.3.40.0000.0278.16
4.3.30.0000.0178.16
4.3.20.0030.0278.16
4.3.10.0000.0308.16
4.3.00.0030.0278.16

preferences:
42.39 ms | 401 KiB | 5 Q