3v4l.org

run code in 300+ PHP versions simultaneously
<?php $serialized_fake_keys = 'a:3:{i:0;i:1;i:0;i:2;i:0;i:3;}'; $hell = unserialize($serialized_fake_keys); var_dump(count($hell), $hell);

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)
8.3.60.0080.00816.63
8.3.50.0120.00822.05
8.3.40.0110.00418.59
8.3.30.0080.00818.84
8.3.20.0070.00020.16
8.3.10.0040.00421.77
8.3.00.0040.00419.00
8.2.180.0100.01016.38
8.2.170.0070.00722.96
8.2.160.0100.00320.29
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00419.66
8.2.110.0070.00422.20
8.2.100.0040.00817.78
8.2.90.0050.00319.05
8.2.80.0030.00617.97
8.2.70.0000.00817.50
8.2.60.0040.00717.80
8.2.50.0000.00818.07
8.2.40.0080.00018.20
8.2.30.0030.00519.15
8.2.20.0000.00717.66
8.2.10.0040.00418.11
8.2.00.0020.00517.82
8.1.280.0100.01025.92
8.1.270.0040.00418.92
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.96
8.1.230.0110.00018.97
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0100.00017.35
8.1.190.0050.00317.22
8.1.180.0040.00418.10
8.1.170.0030.00618.52
8.1.160.0000.00722.00
8.1.150.0040.00418.79
8.1.140.0000.00717.35
8.1.130.0070.00017.82
8.1.120.0000.00717.46
8.1.110.0040.00417.44
8.1.100.0000.00717.49
8.1.90.0040.00417.43
8.1.80.0070.00017.27
8.1.70.0030.00317.34
8.1.60.0000.00817.62
8.1.50.0040.00417.40
8.1.40.0080.00017.46
8.1.30.0030.00517.57
8.1.20.0000.00817.66
8.1.10.0030.00617.26
8.1.00.0070.00417.25
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00318.24
8.0.270.0030.00317.18
8.0.260.0000.00617.10
8.0.250.0030.00316.96
8.0.240.0000.00716.96
8.0.230.0030.00316.95
8.0.220.0030.00316.90
8.0.210.0040.00416.89
8.0.200.0030.00316.92
8.0.190.0030.00316.84
8.0.180.0040.00316.93
8.0.170.0050.00317.04
8.0.160.0030.00316.91
8.0.150.0040.00416.90
8.0.140.0090.00316.83
8.0.130.0060.00013.32
8.0.120.0080.00017.00
8.0.110.0000.00816.91
8.0.100.0040.00416.88
8.0.90.0040.00416.92
8.0.80.0100.01016.90
8.0.70.0040.00416.73
8.0.60.0000.00817.00
8.0.50.0000.00816.79
8.0.30.0090.01517.19
8.0.20.0160.00917.40
8.0.10.0000.00716.95
8.0.00.0090.01516.67
7.4.330.0020.00215.03
7.4.320.0000.00616.45
7.4.300.0020.00516.59
7.4.290.0030.00316.59
7.4.280.0080.00216.41
7.4.270.0040.00416.38
7.4.260.0000.00716.57
7.4.250.0080.00016.55
7.4.240.0020.00516.52
7.4.230.0070.00016.58
7.4.220.0070.01116.49
7.4.210.0060.00716.60
7.4.200.0030.00316.33
7.4.160.0000.01616.32
7.4.150.0120.00617.40
7.4.140.0090.00817.86
7.4.130.0020.01416.52
7.4.120.0070.01016.59
7.4.110.0160.00616.42
7.4.100.0120.00916.63
7.4.90.0110.00716.45
7.4.80.0090.00719.39
7.4.70.0030.01216.50
7.4.60.0170.00616.62
7.4.50.0040.00416.35
7.4.40.0110.00616.20
7.4.30.0100.00716.32
7.4.00.0060.01114.91
7.3.330.0000.00613.04
7.3.320.0000.00513.11
7.3.310.0030.00316.15
7.3.300.0070.00016.17
7.3.290.0000.00716.19
7.3.280.0100.00516.20
7.3.270.0100.01017.40
7.3.260.0130.01016.43
7.3.250.0130.00316.27
7.3.240.0100.00716.25
7.3.230.0080.00816.39
7.3.210.0110.00816.28
7.3.200.0120.00919.39
7.3.190.0120.00916.27
7.3.180.0030.01316.30
7.3.170.0060.01216.27
7.3.160.0070.01416.22
7.3.120.0100.00714.95
7.3.110.0000.01814.66
7.3.100.0130.00314.82
7.3.90.0100.00714.72
7.3.80.0030.00614.73
7.3.70.0060.00914.70
7.3.60.0030.01014.82
7.3.50.0070.00714.83
7.3.40.0040.00814.87
7.3.30.0050.00514.84
7.3.20.0030.01016.55
7.3.10.0020.01116.32
7.3.00.0040.01016.59
7.2.330.0080.00816.30
7.2.320.0000.01716.30
7.2.310.0130.00316.63
7.2.300.0070.01016.56
7.2.290.0060.01316.37
7.2.250.0100.00715.16
7.2.240.0140.00714.88
7.2.230.0000.01315.09
7.2.220.0000.01814.90
7.2.210.0120.00314.87
7.2.200.0030.00614.88
7.2.190.0070.00714.73
7.2.180.0060.01015.05
7.2.170.0100.00314.84
7.2.130.0070.01016.81
7.2.120.0000.01316.88
7.2.110.0030.00616.98
7.2.100.0000.00916.89
7.2.90.0000.01316.95
7.2.80.0040.00817.10
7.2.70.0130.00016.94
7.2.60.0110.00216.83
7.2.50.0000.01516.78
7.2.40.0080.00316.66
7.2.30.0110.00416.80
7.2.20.0090.00916.79
7.2.10.0130.00316.64
7.2.00.0070.00918.16
7.1.330.0030.00915.64
7.1.320.0090.00015.55
7.1.310.0040.01115.93
7.1.300.0100.00315.76
7.1.290.0040.00415.87
7.1.280.0100.00315.70
7.1.270.0070.00715.75
7.1.260.0070.00415.80
7.1.250.0080.00315.72
7.1.200.0080.00415.66
7.1.100.0060.00617.85
7.1.70.0030.01217.13
7.1.60.0140.01119.46
7.1.50.0150.00616.70
7.1.00.0000.08022.46
7.0.200.0560.00714.46
7.0.140.0000.06321.95
7.0.60.0070.08319.91
7.0.50.0100.03317.83
7.0.40.0030.09020.08
7.0.30.0230.07020.12
7.0.20.0270.05720.00
7.0.10.0130.04020.16
7.0.00.0100.04720.01
5.6.280.0030.09321.02
5.6.210.0100.05020.70
5.6.200.0070.05318.23
5.6.190.0030.05020.45
5.6.180.0230.04020.34
5.6.170.0330.08020.50
5.6.160.0100.08020.49
5.6.150.0130.07718.18
5.6.140.0100.08018.16
5.6.130.0070.04018.11
5.6.120.0100.08021.09
5.6.110.0070.09020.95
5.6.100.0130.07020.96
5.6.90.0130.05720.97
5.6.80.0070.05320.36
5.5.350.0330.04020.28
5.5.340.0100.07717.97
5.5.330.0030.08720.28
5.5.320.0430.07320.49
5.5.310.0300.05720.30
5.5.300.0170.07317.92
5.5.290.0130.07317.95
5.5.280.0070.08320.79
5.5.270.0070.03720.66
5.5.260.0230.07020.88
5.5.250.0030.05020.74
5.5.240.0330.05020.14
5.4.450.0700.05719.11
5.4.440.0800.05319.56
5.4.430.0430.05319.23
5.4.420.1200.04719.48
5.4.410.0800.06319.28
5.4.400.1070.05719.15
5.4.390.0230.04318.46
5.4.380.0230.05318.69
5.4.370.0100.05718.59
5.4.360.0130.05718.61
5.4.350.0230.05018.78
5.4.340.0300.04018.63
5.4.320.0170.05318.58
5.4.310.0200.04718.73
5.4.300.0200.05018.48
5.4.290.0200.05018.58
5.4.280.0130.05718.50
5.4.270.0230.04718.71
5.4.260.0100.06018.48
5.4.250.0230.04718.71
5.4.240.0200.05018.44
5.4.230.0270.04018.64
5.4.220.0330.03718.67
5.4.210.0230.04718.67
5.4.200.0170.04716.66
5.4.190.0170.05018.51
5.4.180.0130.05718.66
5.4.170.0100.06318.50
5.4.160.0130.06018.66
5.4.150.0130.05718.47
5.4.140.0030.06316.38
5.4.130.0170.04716.30
5.4.120.0200.04716.27
5.4.110.0170.04716.18
5.4.100.0330.03716.31
5.4.90.0300.05016.30
5.4.80.0130.05316.07
5.4.70.0130.05716.29
5.4.60.0130.05316.02
5.4.50.0100.05316.28
5.4.40.0270.04016.34
5.4.30.0200.05315.99
5.4.20.0200.05316.29
5.4.10.0230.04016.03
5.4.00.0200.04315.52
5.3.290.0200.05014.67
5.3.280.0230.05014.49
5.3.270.0230.04714.56
5.3.260.0170.05714.60
5.3.250.0100.06014.59
5.3.240.0070.06314.70
5.3.230.0200.04714.65
5.3.220.0300.04314.52
5.3.210.0300.04314.60
5.3.200.0170.05314.48
5.3.190.0170.05314.46
5.3.180.0170.05014.54
5.3.170.0170.04714.58
5.3.160.0130.05314.64
5.3.150.0130.05714.46
5.3.140.0100.05714.66
5.3.130.0030.06714.55
5.3.120.0070.06314.50
5.3.110.0230.05014.54
5.3.100.0100.05714.14
5.3.90.0170.05313.96
5.3.80.0170.05013.97
5.3.70.0130.05313.93
5.3.60.0170.05014.01
5.3.50.0200.05314.04
5.3.40.0100.05713.84
5.3.30.0170.04713.89
5.3.20.0230.06313.59
5.3.10.0130.07313.65
5.3.00.0300.05713.73
5.2.170.0100.04711.13
5.2.160.0100.04311.21
5.2.150.0130.04311.13
5.2.140.0100.04311.20
5.2.130.0100.04311.11
5.2.120.0170.03711.11
5.2.110.0130.04011.09
5.2.100.0100.04311.26
5.2.90.0200.03711.15
5.2.80.0070.04711.05
5.2.70.0130.04311.03
5.2.60.0130.04011.04
5.2.50.0230.03011.07
5.2.40.0130.04011.05
5.2.30.0100.04010.93
5.2.20.0170.03310.93
5.2.10.0100.04010.89
5.2.00.0070.04710.76
5.1.60.0070.03710.09
5.1.50.0070.03710.05
5.1.40.0130.0309.98
5.1.30.0100.03710.45
5.1.20.0070.04010.36
5.1.10.0130.03310.11
5.1.00.0130.03310.09
5.0.50.0030.0338.66
5.0.40.0030.0308.47
5.0.30.0070.0438.32
5.0.20.0070.0278.38
5.0.10.0000.0338.17
5.0.00.0100.0408.24
4.4.90.0030.0235.88
4.4.80.0030.0235.92
4.4.70.0070.0235.88
4.4.60.0070.0235.93
4.4.50.0070.0205.88
4.4.40.0070.0335.91
4.4.30.0030.0235.88
4.4.20.0070.0205.91
4.4.10.0070.0235.95
4.4.00.0030.0375.98
4.3.110.0000.0275.86
4.3.100.0030.0235.81
4.3.90.0030.0235.82
4.3.80.0070.0335.77
4.3.70.0030.0235.82
4.3.60.0070.0205.80
4.3.50.0000.0275.90
4.3.40.0030.0335.78
4.3.30.0070.0204.63
4.3.20.0000.0234.52
4.3.10.0030.0234.56
4.3.00.0030.03714.52

preferences:
59.3 ms | 401 KiB | 5 Q