3v4l.org

run code in 300+ PHP versions simultaneously
<?php // given: $undef = "0"; //unset($undef); $null = NULL; $false = FALSE; $true = TRUE; // these operations: var_dump(isset($undef)); var_dump(empty($undef)); var_dump(array_key_exists('undef', $GLOBALS)); // "defined" below

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)
8.3.40.0110.00718.71
8.3.30.0070.01019.09
8.3.20.0080.00020.07
8.3.10.0040.00423.61
8.3.00.0080.00417.88
8.2.170.0110.00422.96
8.2.160.0130.00320.52
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0090.00626.16
8.2.120.0080.00019.26
8.2.110.0030.00722.01
8.2.100.0070.00318.16
8.2.90.0080.00019.22
8.2.80.0060.00317.97
8.2.70.0080.00017.63
8.2.60.0050.00317.93
8.2.50.0060.00318.07
8.2.40.0000.00818.22
8.2.30.0040.00418.24
8.2.20.0040.00417.68
8.2.10.0000.00717.98
8.2.00.0050.00319.34
8.1.270.0040.00423.84
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.84
8.1.230.0040.00819.14
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0000.00917.23
8.1.190.0040.00417.13
8.1.180.0040.00418.10
8.1.170.0050.00318.65
8.1.160.0040.00421.91
8.1.150.0080.00018.46
8.1.140.0000.00717.26
8.1.130.0030.00317.75
8.1.120.0000.00717.39
8.1.110.0030.00617.36
8.1.100.0040.00417.39
8.1.90.0030.00317.38
8.1.80.0040.00417.39
8.1.70.0080.00017.34
8.1.60.0000.00817.59
8.1.50.0080.00017.42
8.1.40.0000.00917.55
8.1.30.0030.00517.71
8.1.20.0000.00717.61
8.1.10.0070.00017.50
8.1.00.0060.00317.46
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.35
8.0.270.0030.00317.24
8.0.260.0060.00017.21
8.0.250.0030.00316.93
8.0.240.0000.00616.96
8.0.230.0030.00316.81
8.0.220.0040.00416.90
8.0.210.0030.00316.88
8.0.200.0000.00616.99
8.0.190.0040.00416.99
8.0.180.0040.00416.96
8.0.170.0040.00416.87
8.0.160.0020.00516.86
8.0.150.0050.00316.80
8.0.140.0040.00416.83
8.0.130.0030.00313.31
8.0.120.0020.00516.87
8.0.110.0000.00916.72
8.0.100.0030.00516.77
8.0.90.0000.00716.78
8.0.80.0130.00316.95
8.0.70.0040.00416.84
8.0.60.0040.00416.86
8.0.50.0050.00216.75
8.0.30.0080.01117.22
8.0.20.0080.01117.40
8.0.10.0000.00716.87
8.0.00.0100.00816.77
7.4.330.0020.00215.08
7.4.320.0000.00616.61
7.4.300.0060.00016.40
7.4.290.0000.00816.58
7.4.280.0000.00716.49
7.4.270.0040.00416.50
7.4.260.0070.00016.55
7.4.250.0000.00816.37
7.4.240.0020.00616.49
7.4.230.0070.00016.34
7.4.220.0130.00716.63
7.4.210.0160.00616.51
7.4.200.0030.00316.34
7.4.160.0040.01216.48
7.4.150.0160.00417.40
7.4.140.0050.01217.86
7.4.130.0100.00616.50
7.4.120.0140.00416.56
7.4.110.0090.00916.49
7.4.100.0030.01516.54
7.4.90.0090.00916.40
7.4.80.0150.01219.39
7.4.70.0150.00316.47
7.4.60.0080.01016.37
7.4.50.0000.00816.23
7.4.40.0140.00316.26
7.4.30.0030.01216.53
7.4.00.0100.00714.98
7.3.330.0030.00213.01
7.3.320.0000.00513.01
7.3.310.0030.00316.13
7.3.300.0030.00316.16
7.3.290.0080.01116.24
7.3.280.0110.00916.16
7.3.270.0090.01517.40
7.3.260.0060.01216.30
7.3.250.0080.01416.28
7.3.240.0120.00415.99
7.3.230.0130.00316.45
7.3.210.0110.00616.06
7.3.200.0090.01019.39
7.3.190.0100.00716.16
7.3.180.0090.00616.28
7.3.170.0100.00716.36
7.3.160.0030.01316.41
7.3.120.0100.00714.73
7.3.10.0120.00416.23
7.3.00.0070.00716.14
7.2.330.0040.01516.29
7.2.320.0100.00716.59
7.2.310.0070.01016.26
7.2.300.0110.00416.61
7.2.290.0060.00916.42
7.2.130.0070.00716.57
7.2.120.0180.00416.40
7.2.110.0140.00316.57
7.2.100.0040.01116.49
7.2.90.0070.01016.71
7.2.80.0150.00816.53
7.2.70.0130.00916.61
7.2.60.0150.01216.34
7.2.50.0200.00916.60
7.2.40.0160.00716.66
7.2.30.0150.00516.78
7.2.20.0060.01316.08
7.2.10.0160.00316.48
7.2.00.0110.00817.90
7.1.250.0070.00715.13
7.1.100.0040.01117.79
7.1.70.0000.00716.89
7.1.60.0080.01519.70
7.1.50.0060.01916.59
7.1.00.0000.08022.34
7.0.200.0100.01016.69
7.0.140.0100.06721.95
7.0.100.0230.08019.92
7.0.90.0070.08319.88
7.0.80.0030.07019.88
7.0.70.0030.08719.90
7.0.60.0000.04719.91
7.0.50.0070.08020.32
7.0.40.0200.07320.04
7.0.30.0130.07020.07
7.0.20.0130.04320.04
7.0.10.0030.08720.07
7.0.00.0030.08020.10
5.6.280.0070.07021.12
5.6.250.0030.08720.71
5.6.240.0070.06720.59
5.6.230.0030.05320.46
5.6.220.0000.05320.62
5.6.210.0070.06020.46
5.6.200.0130.08321.05
5.6.190.0170.07321.16
5.6.180.0030.07021.00
5.6.170.0070.08321.10
5.6.160.0130.06020.96
5.6.150.0000.08721.10
5.6.140.0070.05021.02
5.6.130.0070.08021.03
5.6.120.0070.08021.00
5.6.110.0100.05021.01
5.6.100.0070.06321.08
5.6.90.0030.08321.00
5.6.80.0070.07020.33
5.6.70.0070.05720.39
5.6.60.0000.04320.39
5.6.50.0030.07320.40
5.6.40.0000.06020.38
5.6.30.0200.06720.44
5.6.20.0030.05720.36
5.6.10.0000.07320.52
5.6.00.0100.06720.29
5.5.380.0070.07320.33
5.5.370.0030.08320.38
5.5.360.0130.07020.28
5.5.350.0100.07720.45
5.5.340.0100.06720.72
5.5.330.0030.07020.64
5.5.320.0100.07720.91
5.5.310.0000.04720.91
5.5.300.0030.06320.77
5.5.290.0000.06720.87
5.5.280.0070.08020.82
5.5.270.0070.06320.89
5.5.260.0030.05020.89
5.5.250.0100.04020.72
5.5.240.0100.07720.17
5.5.230.0030.08320.14
5.5.220.0100.07320.13
5.5.210.0130.07020.16
5.5.200.0100.03020.10
5.5.190.0070.07320.20
5.5.180.0100.08020.23
5.5.160.0070.07020.09
5.5.150.0100.06720.22
5.5.140.0100.04320.21
5.5.130.0130.07720.16
5.5.120.0070.08020.17
5.5.110.0070.07020.20
5.5.100.0070.03720.00
5.5.90.0030.05320.00
5.5.80.0130.07720.11
5.5.70.0100.07720.04
5.5.60.0100.05720.14
5.5.50.0030.06719.93
5.5.40.0130.03720.08
5.5.30.0130.04320.03
5.5.20.0070.06720.03
5.5.10.0030.07320.02
5.5.00.0100.07320.04
5.4.450.0030.05019.46
5.4.440.0070.03719.36
5.4.430.0070.04019.44
5.4.420.0130.03019.30
5.4.410.0070.07719.48
5.4.400.0030.08719.05
5.4.390.0030.03719.10
5.4.380.0070.06319.02
5.4.370.0000.04319.05
5.4.360.0130.06018.96
5.4.350.0070.03318.95
5.4.340.0100.05319.03
5.4.320.0000.05018.90
5.4.310.0030.07318.78
5.4.300.0130.06719.14
5.4.290.0130.03719.06
5.4.280.0130.08319.11
5.4.270.0130.05719.03
5.4.260.0070.05018.78
5.4.250.0130.07318.89
5.4.240.0030.07318.97
5.4.230.0070.03719.02
5.4.220.0030.07018.79
5.4.210.0100.05718.99
5.4.200.0000.08319.05
5.4.190.0000.05319.05
5.4.180.0170.07019.02
5.4.170.0070.04319.13
5.4.160.0130.07019.10
5.4.150.0100.07018.77
5.4.140.0100.07316.29
5.4.130.0030.03716.31
5.4.120.0000.05016.11
5.4.110.0100.07316.33
5.4.100.0030.03716.39
5.4.90.0130.06316.21
5.4.80.0100.07316.19
5.4.70.0070.04016.29
5.4.60.0070.06316.38
5.4.50.0100.07016.18
5.4.40.0170.02716.29
5.4.30.0100.05716.18
5.4.20.0030.05716.37
5.4.10.0100.04716.23
5.4.00.0000.07715.80
5.3.290.0070.07314.67
5.3.280.0130.05014.55
5.3.270.0070.05714.46
5.3.260.0100.07014.58
5.3.250.0030.06314.57
5.3.240.0030.04014.42
5.3.230.0030.07014.45
5.3.220.0070.05014.54
5.3.210.0170.05314.51
5.3.200.0030.04714.52
5.3.190.0100.06714.54
5.3.180.0070.07314.55
5.3.170.0030.03714.52
5.3.160.0170.06014.41
5.3.150.0100.06714.56
5.3.140.0000.07714.54
5.3.130.0070.07714.40
5.3.120.0070.04314.52
5.3.110.0030.04014.40
5.3.100.0100.05713.89
5.3.90.0070.03313.99
5.3.80.0030.04313.77
5.3.70.0000.03713.86
5.3.60.0000.04014.00
5.3.50.0130.02713.88
5.3.40.0000.04013.91
5.3.30.0000.04313.81
5.3.20.0070.03013.67
5.3.10.0000.03713.63
5.3.00.0000.04013.54
5.2.170.0070.02311.19
5.2.160.0000.04311.16
5.2.150.0030.02711.13
5.2.140.0030.03011.02
5.2.130.0030.02711.09
5.2.120.0000.03011.14
5.2.110.0030.02710.92
5.2.100.0000.03011.09
5.2.90.0030.02711.05
5.2.80.0000.03010.94
5.2.70.0030.02710.94
5.2.60.0000.03011.04
5.2.50.0030.02311.05
5.2.40.0000.03011.03
5.2.30.0000.03010.96
5.2.20.0030.02310.91
5.2.10.0000.02310.88
5.2.00.0000.03010.79
5.1.60.0030.02310.17
5.1.50.0030.02310.17
5.1.40.0000.03710.17
5.1.30.0000.02710.40
5.1.20.0000.03010.42
5.1.10.0000.02710.17
5.1.00.0030.02710.17
5.0.50.0000.02310.17
5.0.40.0000.02010.17
5.0.30.0070.02310.17
5.0.20.0000.02010.17
5.0.10.0030.02010.17
5.0.00.0000.05010.17
4.4.90.0000.01710.17
4.4.80.0030.01310.17
4.4.70.0000.01310.17
4.4.60.0000.02310.17
4.4.50.0000.01710.17
4.4.40.0000.02310.17
4.4.30.0000.01310.17
4.4.20.0000.01710.17
4.4.10.0000.01710.17
4.4.00.0000.02710.17
4.3.110.0000.01710.17
4.3.100.0000.01710.17
4.3.90.0030.01310.17
4.3.80.0070.01310.17
4.3.70.0000.01710.17
4.3.60.0000.01710.17
4.3.50.0030.01310.17
4.3.40.0000.02010.17
4.3.30.0000.01310.17
4.3.20.0000.01710.17
4.3.10.0000.01310.17
4.3.00.0000.01310.17

preferences:
41.14 ms | 400 KiB | 5 Q