3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(count(null)); var_dump(count(0)); class Foo implements Countable { public function count() { return 4; } } $foo = new Foo; var_dump(!is_array($foo), 4 == count($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)
8.3.40.0110.00718.84
8.3.30.0130.00020.21
8.3.20.0040.00418.87
8.3.10.0070.00721.10
8.3.00.0060.00322.25
8.2.170.0120.00322.96
8.2.160.0140.00020.39
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0000.00720.79
8.2.110.0080.00320.58
8.2.100.0080.00417.72
8.2.90.0040.00419.09
8.2.80.0000.00819.25
8.2.70.0030.00617.63
8.2.60.0090.00017.79
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0000.00719.31
8.2.20.0000.00717.59
8.2.10.0060.00317.67
8.2.00.0080.00017.68
8.1.270.0000.00823.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.68
8.1.230.0000.01122.68
8.1.220.0060.00318.77
8.1.210.0000.00818.89
8.1.200.0090.00017.10
8.1.190.0000.00717.40
8.1.180.0040.00418.10
8.1.170.0000.00818.50
8.1.160.0040.00418.63
8.1.150.0040.00418.50
8.1.140.0040.00417.35
8.1.130.0000.00717.75
8.1.120.0050.00217.23
8.1.110.0040.00417.19
8.1.100.0000.00717.36
8.1.90.0000.00717.36
8.1.80.0070.00017.32
8.1.70.0000.00717.17
8.1.60.0000.00817.36
8.1.50.0050.00317.50
8.1.40.0050.00317.40
8.1.30.0040.00417.51
8.1.20.0040.00417.45
8.1.10.0080.00017.54
8.1.00.0030.00617.34
8.0.300.0040.00419.89
8.0.290.0030.00317.05
8.0.280.0050.00318.32
8.0.270.0030.00317.11
8.0.260.0000.00816.75
8.0.250.0030.00316.95
8.0.240.0050.00316.98
8.0.230.0080.00016.97
8.0.220.0040.00416.89
8.0.210.0070.00016.79
8.0.200.0070.00016.82
8.0.190.0070.00016.84
8.0.180.0030.00516.89
8.0.170.0080.00016.86
8.0.160.0030.00316.83
8.0.150.0040.00416.89
8.0.140.0000.00716.73
8.0.130.0050.00013.37
8.0.120.0000.00816.83
8.0.110.0040.00416.75
8.0.100.0000.00716.77
8.0.90.0040.00416.82
8.0.80.0150.00016.82
8.0.70.0040.00316.85
8.0.60.0000.00816.88
8.0.50.0020.00516.74
8.0.30.0110.00716.93
8.0.20.0050.01417.40
8.0.10.0040.00417.06
8.0.00.0050.01316.66
7.4.330.0050.00016.74
7.4.320.0000.00616.61
7.4.300.0060.00016.43
7.4.290.0030.00316.51
7.4.280.0000.00616.46
7.4.270.0030.00316.46
7.4.260.0050.00013.21
7.4.250.0040.00416.42
7.4.240.0050.00216.51
7.4.230.0070.00016.71
7.4.220.0120.00616.54
7.4.210.0050.01216.54
7.4.200.0000.00716.58
7.4.190.0000.00716.76
7.4.160.0130.00816.57
7.4.150.0090.00917.40
7.4.140.0080.01017.86
7.4.130.0080.00816.50
7.4.120.0090.00716.48
7.4.110.0100.01516.37
7.4.100.0100.00716.54
7.4.90.0140.00716.69
7.4.80.0070.01019.39
7.4.70.0090.00916.47
7.4.60.0080.00916.61
7.4.50.0080.00016.24
7.4.40.0090.00622.77
7.4.30.0000.01616.24
7.4.00.0080.00814.98
7.3.330.0060.00013.29
7.3.320.0050.00013.36
7.3.310.0000.00716.36
7.3.300.0000.00616.28
7.3.290.0070.00716.33
7.3.280.0100.01016.38
7.3.270.0060.01217.40
7.3.260.0090.01118.24
7.3.250.0080.01216.39
7.3.240.0090.01016.53
7.3.230.0090.00716.44
7.3.210.0100.00716.38
7.3.200.0030.01319.39
7.3.190.0030.00916.45
7.3.180.0060.01516.41
7.3.170.0000.01716.45
7.3.160.0110.00616.50
7.3.120.0040.00414.85
7.2.330.0040.01516.41
7.2.320.0160.00616.77
7.2.310.0070.01116.70
7.2.300.0070.01016.66
7.2.290.0110.00616.69
7.2.60.0090.00616.73
7.2.00.0030.00719.43
7.1.200.0050.00315.73
7.1.100.0030.01017.96
7.1.70.0060.00617.30
7.1.60.0100.01619.17
7.1.50.0090.00316.71
7.1.00.0070.06022.35
7.0.200.0030.00516.67
7.0.140.0000.07722.08
7.0.100.0230.08020.19
7.0.90.0130.06020.00
7.0.80.0100.07719.96
7.0.70.0070.08019.91
7.0.60.0000.06719.98
7.0.50.0130.07720.16
7.0.40.0070.04020.10
7.0.30.0100.03719.95
7.0.20.0100.06320.01
7.0.10.0100.08020.14
7.0.00.0100.04719.99
5.6.280.0030.07320.78
5.6.250.0070.08320.77
5.6.240.0030.05020.61
5.6.230.0100.09020.63
5.6.220.0030.06020.65
5.6.210.0100.08020.43
5.6.200.0070.08021.09
5.6.190.0000.04021.07
5.6.180.0030.06320.88
5.6.170.0070.07321.04
5.6.160.0070.07021.05
5.6.150.0070.08021.02
5.6.140.0170.07721.05
5.6.130.0070.07021.00
5.6.120.0070.06721.02
5.6.110.0100.08321.09
5.6.100.0130.08020.95
5.6.90.0070.08721.11
5.6.80.0070.05020.50
5.6.70.0130.04020.46
5.6.60.0130.05720.51
5.6.50.0070.05720.41
5.6.40.0130.07320.24
5.6.30.0070.04320.41
5.6.20.0000.07020.43
5.6.10.0130.08020.46
5.6.00.0030.04020.48
5.5.380.0100.04320.51
5.5.370.0100.06020.35
5.5.360.0100.06320.36
5.5.350.0100.08020.45
5.5.340.0000.04720.88
5.5.330.0000.05320.89
5.5.320.0200.07020.89
5.5.310.0100.05720.82
5.5.300.0170.03720.90
5.5.290.0100.07320.79
5.5.280.0170.04020.86
5.5.270.0030.06720.91
5.5.260.0130.04720.77
5.5.250.0070.08720.64
5.5.240.0030.04720.18
5.5.230.0130.09020.07
5.5.220.0170.04720.30
5.5.210.0200.03320.21
5.5.200.0070.04720.27
5.5.190.0000.04020.28
5.5.180.0170.03320.15
5.5.160.0130.06720.11
5.5.150.0100.07720.08
5.5.140.0000.04020.14
5.5.130.0100.07720.17
5.5.120.0070.06720.24
5.5.110.0030.05020.17
5.5.100.0130.08020.05
5.5.90.0070.04720.07
5.5.80.0130.06720.04
5.5.70.0030.08320.10
5.5.60.0130.04320.06
5.5.50.0170.06020.12
5.5.40.0100.07720.00
5.5.30.0000.05720.05
5.5.20.0070.08020.13
5.5.10.0130.07320.04
5.5.00.0100.04320.04
5.4.450.0200.06319.38
5.4.440.0030.07019.48
5.4.430.0170.07019.35
5.4.420.0100.04019.17
5.4.410.0030.04019.10
5.4.400.0000.04319.14
5.4.390.0100.04719.05
5.4.380.0130.06319.25
5.4.370.0070.05719.06
5.4.360.0100.03719.23
5.4.350.0030.06719.12
5.4.340.0000.04319.14
5.4.320.0030.08319.03
5.4.310.0030.03319.13
5.4.300.0030.04019.08
5.4.290.0100.03018.84
5.4.280.0130.07019.04
5.4.270.0100.07018.90
5.4.260.0000.04319.03
5.4.250.0100.05019.24
5.4.240.0100.07319.03
5.4.230.0030.08019.22
5.4.220.0170.06719.17
5.4.210.0030.07018.94
5.4.200.0070.07718.86
5.4.190.0000.07018.89
5.4.180.0130.07019.11
5.4.170.0130.07719.22
5.4.160.0030.05319.10
5.4.150.0070.06319.20
5.4.140.0070.05716.32
5.4.130.0100.04016.41
5.4.120.0130.07316.24
5.4.110.0130.03316.36
5.4.100.0130.06716.50
5.4.90.0030.07716.50
5.4.80.0030.04016.48
5.4.70.0000.04316.25
5.4.60.0000.04316.30
5.4.50.0070.03316.47
5.4.40.0000.06316.53
5.4.30.0070.03716.46
5.4.20.0030.05716.34
5.4.10.0000.04716.48
5.4.00.0030.03715.86
5.3.290.0030.07014.77
5.3.280.0070.08014.57
5.3.270.0070.07314.62
5.3.260.0070.07714.55
5.3.250.0030.07014.59
5.3.240.0070.07714.63
5.3.230.0070.04014.60
5.3.220.0030.06314.63
5.3.210.0100.04314.70
5.3.200.0100.06014.55
5.3.190.0100.04014.55
5.3.180.0030.06014.52
5.3.170.0070.04014.62
5.3.160.0030.04314.55
5.3.150.0070.03314.50
5.3.140.0100.03014.64
5.3.130.0100.03714.52
5.3.120.0000.06314.68
5.3.110.0000.07714.68
5.3.100.0030.06014.13
5.3.90.0070.03314.15
5.3.80.0000.04313.95
5.3.70.0070.03314.13
5.3.60.0070.06014.06
5.3.50.0030.04014.04
5.3.40.0000.04713.88
5.3.30.0070.07714.03
5.3.20.0030.03713.80
5.3.10.0100.05313.71
5.3.00.0030.04713.69
5.2.170.0000.03713.68
5.2.160.0030.04313.68
5.2.150.0030.03313.68
5.2.140.0070.04313.68
5.2.130.0070.02313.68
5.2.120.0030.06013.68
5.2.110.0100.03013.68
5.2.100.0070.04013.68
5.2.90.0070.05013.68
5.2.80.0030.03013.68
5.2.70.0070.02313.68
5.2.60.0030.03313.68
5.2.50.0000.03713.68
5.2.40.0000.03313.68
5.2.30.0030.02713.68
5.2.20.0070.02313.68
5.2.10.0030.02713.68
5.2.00.0000.03313.68
5.1.60.0030.02313.68
5.1.50.0030.02313.68
5.1.40.0030.02313.68
5.1.30.0030.02713.68
5.1.20.0000.02713.68
5.1.10.0000.02713.68
5.1.00.0030.02713.68
5.0.50.0000.02313.68
5.0.40.0000.02013.68
5.0.30.0000.03013.68
5.0.20.0000.02013.68
5.0.10.0000.02013.68
5.0.00.0000.02713.68
4.4.90.0000.02713.68
4.4.80.0100.02313.68
4.4.70.0000.01713.68
4.4.60.0000.01713.68
4.4.50.0000.01713.68
4.4.40.0000.02313.68
4.4.30.0000.01313.68
4.4.20.0000.01713.68
4.4.10.0000.01713.68
4.4.00.0000.02713.68
4.3.110.0000.01713.68
4.3.100.0030.01313.68
4.3.90.0000.01713.68
4.3.80.0000.02313.68
4.3.70.0070.01313.68
4.3.60.0030.01313.68
4.3.50.0000.01713.68
4.3.40.0000.02013.68
4.3.30.0000.01713.68
4.3.20.0000.01313.68
4.3.10.0000.01313.68
4.3.00.0000.01713.68

preferences:
38.55 ms | 400 KiB | 5 Q