3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = NULL; var_dump(isset($var)); var_dump(array_key_exists('var', $GLOBALS));

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)
8.3.60.0150.00316.63
8.3.50.0140.00321.95
8.3.40.0040.01118.84
8.3.30.0150.00418.92
8.3.20.0080.00020.27
8.3.10.0000.00823.61
8.3.00.0030.00622.45
8.2.180.0100.00718.29
8.2.170.0160.00318.89
8.2.160.0110.01122.96
8.2.150.0030.00624.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00422.08
8.2.110.0060.00322.13
8.2.100.0160.00017.78
8.2.90.0090.00019.17
8.2.80.0000.00717.97
8.2.70.0080.00017.63
8.2.60.0090.00017.93
8.2.50.0040.00418.07
8.2.40.0040.00419.45
8.2.30.0000.00718.08
8.2.20.0040.00417.64
8.2.10.0000.00717.49
8.2.00.0000.00717.53
8.1.280.0100.00625.92
8.1.270.0090.00023.75
8.1.260.0050.00326.35
8.1.250.0060.00328.09
8.1.240.0100.00023.98
8.1.230.0110.00019.20
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0000.01017.23
8.1.190.0080.00017.30
8.1.180.0030.00618.10
8.1.170.0040.00418.50
8.1.160.0000.00921.86
8.1.150.0000.00718.62
8.1.140.0000.00717.41
8.1.130.0030.00317.80
8.1.120.0000.00817.23
8.1.110.0030.00517.34
8.1.100.0070.00017.39
8.1.90.0050.00217.40
8.1.80.0000.00817.34
8.1.70.0080.00017.36
8.1.60.0000.00817.51
8.1.50.0040.00417.50
8.1.40.0030.00617.50
8.1.30.0080.00017.63
8.1.20.0040.00417.51
8.1.10.0040.00417.50
8.1.00.0000.00717.32
8.0.300.0000.00718.77
8.0.290.0070.00017.15
8.0.280.0040.00418.36
8.0.270.0000.00817.23
8.0.260.0000.00616.80
8.0.250.0000.00616.93
8.0.240.0050.00316.98
8.0.230.0030.00316.83
8.0.220.0000.00716.86
8.0.210.0050.00216.86
8.0.200.0000.00716.90
8.0.190.0080.00016.80
8.0.180.0030.00516.81
8.0.170.0040.00416.88
8.0.160.0070.00016.91
8.0.150.0030.00316.78
8.0.140.0060.00316.88
8.0.130.0000.00713.29
8.0.120.0000.00716.72
8.0.110.0030.00316.84
8.0.100.0040.00416.84
8.0.90.0040.00416.82
8.0.80.0060.01016.94
8.0.70.0050.00216.99
8.0.60.0050.00216.80
8.0.50.0040.00416.79
8.0.30.0170.00616.95
8.0.20.0150.00617.40
8.0.10.0030.00517.03
8.0.00.0050.01416.77
7.4.330.0020.00215.14
7.4.320.0040.00416.48
7.4.300.0000.00716.41
7.4.290.0040.00416.48
7.4.280.0050.00316.57
7.4.270.0060.00016.63
7.4.260.0080.00016.52
7.4.250.0030.00516.53
7.4.240.0050.00216.55
7.4.230.0000.00716.52
7.4.220.0070.01316.66
7.4.210.0030.01016.50
7.4.200.0000.00716.61
7.4.190.0030.00516.72
7.4.160.0120.00416.18
7.4.150.0060.01017.40
7.4.140.0110.00617.86
7.4.130.0100.00916.35
7.4.120.0060.01016.57
7.4.110.0150.00316.53
7.4.100.0100.01416.39
7.4.90.0100.00616.57
7.4.80.0090.00916.67
7.4.70.0100.01316.21
7.4.60.0050.01516.43
7.4.50.0040.00416.39
7.4.40.0080.00522.77
7.4.30.0090.00616.52
7.4.00.0090.00614.87
7.3.330.0030.00312.97
7.3.320.0000.00512.92
7.3.310.0030.00316.04
7.3.300.0030.00315.96
7.3.290.0070.01016.13
7.3.280.0090.00916.15
7.3.270.0100.01017.40
7.3.260.0070.01016.27
7.3.250.0100.00816.28
7.3.240.0130.00316.23
7.3.230.0060.01016.39
7.3.210.0070.01016.35
7.3.200.0200.00019.39
7.3.190.0070.01016.31
7.3.180.0030.01316.25
7.3.170.0070.00716.29
7.3.160.0030.01416.31
7.3.120.0070.00714.93
7.2.330.0000.01616.41
7.2.320.0100.00716.28
7.2.310.0130.01016.61
7.2.300.0140.00316.53
7.2.290.0160.00016.47
7.2.00.0000.01719.33
7.1.100.0030.01017.75
7.1.70.0000.00716.89
7.1.60.0130.01319.29
7.1.50.0090.01316.76
7.1.00.0000.08022.32
7.0.200.0000.00716.57
7.0.140.0030.07321.95
7.0.60.0070.04019.93
7.0.50.0030.09017.89
7.0.40.0100.07320.05
7.0.30.0300.05720.17
7.0.20.0300.07720.04
7.0.10.0270.07320.18
7.0.00.0070.08020.17
5.6.280.0100.06720.91
5.6.210.0030.04020.60
5.6.200.0100.06018.13
5.6.190.0100.08320.39
5.6.180.0070.08020.56
5.6.170.0300.04020.49
5.6.160.0100.08020.32
5.6.150.0070.04018.13
5.6.140.0070.08018.11
5.6.130.0130.08018.20
5.6.120.0130.08021.13
5.6.110.0100.08021.04
5.6.100.0000.09320.96
5.6.90.0070.08321.05
5.6.80.0100.07020.34
5.6.70.4470.03720.52
5.5.350.0070.06720.52
5.5.340.0100.07317.88
5.5.330.0100.08020.57
5.5.320.0070.08320.34
5.5.310.0200.05720.29
5.5.300.0030.06018.01
5.5.290.0070.07018.02
5.5.280.0030.04320.67
5.5.270.0100.06320.96
5.5.260.0100.07720.76
5.5.250.0130.06020.54
5.5.240.0130.04720.22
5.4.450.0300.03019.11
5.4.440.0300.06719.54
5.4.430.0430.05719.54
5.4.420.0200.06719.25
5.4.410.0370.04019.48
5.4.400.0170.06019.28
5.4.390.0200.07019.25
5.4.380.0170.05018.53
5.4.370.0170.04718.68
5.4.360.0100.05718.70
5.4.350.0130.05318.62
5.4.340.0000.06718.79
5.4.320.0030.03912.45
5.4.310.0070.04412.45
5.4.300.0070.04212.46
5.4.290.0100.04012.45
5.4.280.0080.03512.34
5.4.270.0060.04412.34
5.4.260.0070.03612.35
5.4.250.0060.03612.34
5.4.240.0050.03512.34
5.4.230.0020.04012.33
5.4.220.0050.03612.33
5.4.210.0070.03312.33
5.4.200.0050.03812.33
5.4.190.0040.04612.33
5.4.180.0050.03712.32
5.4.170.0050.04012.34
5.4.160.0100.03512.33
5.4.150.0080.03312.32
5.4.140.0030.03912.01
5.4.130.0080.03512.00
5.4.120.0040.04811.95
5.4.110.0080.04011.95
5.4.100.0080.03811.95
5.4.90.0060.04011.95
5.4.80.0050.03811.95
5.4.70.0050.03511.95
5.4.60.0040.03611.95
5.4.50.0070.03411.95
5.4.40.0040.03611.93
5.4.30.0050.03611.94
5.4.20.0050.03511.93
5.4.10.0060.03411.94
5.4.00.0040.03611.42
5.3.290.0050.03912.80
5.3.280.0040.03812.71
5.3.270.0060.03812.72
5.3.260.0070.03712.72
5.3.250.0040.03812.71
5.3.240.0050.03812.72
5.3.230.0040.04012.70
5.3.220.0070.03612.68
5.3.210.0050.04012.68
5.3.200.0010.04112.68
5.3.190.0080.03512.68
5.3.180.0090.03312.67
5.3.170.0050.03912.67
5.3.160.0060.04212.67
5.3.150.0070.04512.67
5.3.140.0050.04212.66
5.3.130.0050.03912.66
5.3.120.0060.03912.66
5.3.110.0110.04912.66
5.3.100.0070.04012.12
5.3.90.0050.04012.09
5.3.80.0060.03512.08
5.3.70.0070.03912.08
5.3.60.0030.04012.06
5.3.50.0050.03612.00
5.3.40.0090.03312.00
5.3.30.0040.03611.95
5.3.20.0060.03411.73
5.3.10.0040.03611.69
5.3.00.0030.03911.67
5.2.170.0060.0299.18
5.2.160.0050.0289.18
5.2.150.0050.0299.18
5.2.140.0030.0319.18
5.2.130.0050.0299.14
5.2.120.0050.0279.14
5.2.110.0060.0279.15
5.2.100.0050.0289.14
5.2.90.0040.0299.14
5.2.80.0070.0349.14
5.2.70.0040.0319.13
5.2.60.0040.0309.09
5.2.50.0050.0309.05
5.2.40.0030.0309.04
5.2.30.0040.0309.01
5.2.20.0020.0319.00
5.2.10.0010.0318.92
5.2.00.0080.0318.78
5.1.60.0030.0248.06
5.1.50.0080.0308.06
5.1.40.0020.0268.05
5.1.30.0060.0248.39
5.1.20.0060.0258.42
5.1.10.0030.0278.14
5.1.00.0050.0248.14
5.0.50.0030.0216.62
5.0.40.0030.0206.48
5.0.30.0040.0316.29
5.0.20.0010.0226.27
5.0.10.0040.0186.23
5.0.00.0020.0316.23
4.4.90.0050.0134.77
4.4.80.0040.0164.76
4.4.70.0020.0174.76
4.4.60.0030.0184.76
4.4.50.0040.0144.77
4.4.40.0020.0254.71
4.4.30.0030.0154.76
4.4.20.0040.0144.85
4.4.10.0020.0164.84
4.4.00.0020.0254.76
4.3.110.0010.0174.67
4.3.100.0050.0144.66
4.3.90.0020.0164.63
4.3.80.0020.0254.58
4.3.70.0040.0134.63
4.3.60.0070.0144.62
4.3.50.0060.0134.63
4.3.40.0030.0314.53
4.3.30.0030.0213.28
4.3.20.0050.0193.26
4.3.10.0030.0153.21
4.3.00.0030.01713.14

preferences:
40.59 ms | 401 KiB | 5 Q