3v4l.org

run code in 300+ PHP versions simultaneously
<?php $header = array('test'); if (array_key_exists('class', $header[0])) { echo 'set'; } else { echo 'not set'; }

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)
8.3.60.0040.01118.43
8.3.50.0110.01122.01
8.3.40.0000.01518.92
8.3.30.0070.00719.04
8.3.20.0070.00020.29
8.3.10.0090.00020.58
8.3.00.0030.00619.38
8.2.180.0120.00916.88
8.2.170.0140.00722.96
8.2.160.0070.01118.83
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00022.29
8.2.110.0060.00320.30
8.2.100.0040.00818.09
8.2.90.0040.00419.05
8.2.80.0050.00317.97
8.2.70.0000.00817.75
8.2.60.0000.00818.04
8.2.50.0130.00018.07
8.2.40.0040.00419.82
8.2.30.0080.00018.07
8.2.20.0060.00317.66
8.2.10.0040.00418.00
8.2.00.0000.00917.73
8.1.280.0150.00025.92
8.1.270.0000.00823.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.98
8.1.230.0090.00319.16
8.1.220.0050.00317.76
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0080.00017.23
8.1.180.0000.00818.10
8.1.170.0000.00818.65
8.1.160.0040.00421.91
8.1.150.0040.00418.83
8.1.140.0070.00017.39
8.1.130.0040.00417.79
8.1.120.0080.00017.49
8.1.110.0000.00717.34
8.1.100.0030.00317.44
8.1.90.0040.00417.45
8.1.80.0000.00817.34
8.1.70.0000.00717.29
8.1.60.0000.00817.60
8.1.50.0000.00817.58
8.1.40.0080.00017.51
8.1.30.0040.00417.45
8.1.20.0040.00417.65
8.1.10.0000.00717.58
8.1.00.0030.00617.54
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0030.00318.38
8.0.270.0030.00317.22
8.0.260.0000.00617.11
8.0.250.0000.00716.90
8.0.240.0030.00316.89
8.0.230.0070.00016.85
8.0.220.0030.00316.88
8.0.210.0000.00716.86
8.0.200.0030.00316.92
8.0.190.0000.00916.95
8.0.180.0070.00016.76
8.0.170.0040.00416.90
8.0.160.0040.00416.83
8.0.150.0040.00416.88
8.0.140.0040.00416.86
8.0.130.0000.00513.32
8.0.120.0060.00316.83
8.0.110.0040.00416.90
8.0.100.0040.00417.00
8.0.90.0040.00416.85
8.0.80.0060.00916.83
8.0.70.0030.00616.96
8.0.60.0080.00016.83
8.0.50.0040.00416.99
8.0.30.0130.00617.10
8.0.20.0050.01417.40
8.0.10.0000.00716.84
8.0.00.0160.00516.80
7.4.330.0000.00515.21
7.4.320.0030.00316.60
7.4.300.0000.00716.61
7.4.290.0030.00316.50
7.4.280.0050.00316.49
7.4.270.0000.00716.50
7.4.260.0030.00316.49
7.4.250.0000.00816.59
7.4.240.0030.00516.51
7.4.230.0030.00316.39
7.4.220.0070.01116.63
7.4.210.0110.00416.38
7.4.200.0040.00416.70
7.4.160.0100.00716.33
7.4.150.0110.00717.40
7.4.140.0110.00717.86
7.4.130.0120.00516.63
7.4.120.0080.01116.61
7.4.110.0070.01116.67
7.4.100.0120.00616.61
7.4.90.0090.00616.61
7.4.80.0070.01019.39
7.4.70.0160.00316.68
7.4.60.0070.01016.43
7.4.50.0030.00316.41
7.4.40.0040.01216.38
7.4.30.0090.00616.58
7.4.00.0090.00615.04
7.3.330.0050.00013.18
7.3.320.0050.00013.10
7.3.310.0050.00216.07
7.3.300.0070.00016.24
7.3.290.0060.01016.25
7.3.280.0080.00916.24
7.3.270.0090.00917.40
7.3.260.0100.00716.30
7.3.250.0100.00716.53
7.3.240.0090.01016.23
7.3.230.0110.00716.39
7.3.210.0040.01616.60
7.3.200.0090.00919.39
7.3.190.0030.01316.41
7.3.180.0110.00416.22
7.3.170.0050.01816.27
7.3.160.0000.01416.36
7.3.10.0150.00416.45
7.3.00.0160.00516.18
7.2.330.0090.00816.64
7.2.320.0100.00716.66
7.2.310.0100.01016.72
7.2.300.0090.01216.70
7.2.290.0070.01016.70
7.2.130.0120.01216.41
7.2.120.0080.01316.80
7.2.110.0090.00916.76
7.2.100.0120.00616.68
7.2.90.0110.00516.84
7.2.80.0100.00616.74
7.2.70.0120.00616.87
7.2.60.0210.00716.64
7.2.50.0070.00716.74
7.2.40.0160.00316.69
7.2.30.0120.00316.74
7.2.20.0060.00916.49
7.2.10.0150.00316.77
7.2.00.0060.00717.96
7.1.250.0160.00615.39
7.1.200.0030.01015.61
7.1.100.0100.00718.24
7.1.70.0050.00216.89
7.1.60.0030.01319.32
7.1.50.0120.00916.50
7.1.00.0030.07322.37
7.0.200.0060.00316.91
7.0.140.0000.07721.97
7.0.60.0030.08019.92
7.0.50.0100.05317.89
7.0.40.0070.07320.05
7.0.30.0300.07720.04
7.0.20.0200.07020.18
7.0.10.0070.04020.09
7.0.00.0000.04720.04
5.6.280.0100.06721.06
5.6.210.0030.04320.75
5.6.200.0030.05718.19
5.6.190.0030.04720.39
5.6.180.0430.06020.60
5.6.170.0430.07020.55
5.6.160.0030.06720.69
5.6.150.0030.06018.18
5.6.140.0170.04718.07
5.6.130.0030.05718.13
5.6.120.0070.08021.01
5.6.110.0070.08721.04
5.6.100.0070.08320.97
5.6.90.0100.06321.10
5.6.80.0100.06320.29
5.5.350.0230.03720.37
5.5.340.0070.08017.96
5.5.330.0170.07020.21
5.5.320.0400.05020.31
5.5.310.0330.07020.30
5.5.300.0130.07317.84
5.5.290.0100.04317.91
5.5.280.0170.06720.87
5.5.270.0000.06320.75
5.5.260.0200.07720.79
5.5.250.0100.06720.68
5.5.240.0200.06320.18
5.4.450.0400.04019.39
5.4.440.0500.03719.48
5.4.430.0800.04319.55
5.4.420.0630.00019.46
5.4.410.0670.00019.29
5.4.400.0630.00019.19
5.4.390.0600.00019.05
5.4.380.0630.00018.98
5.4.370.0670.00019.04
5.4.360.0830.00019.14
5.4.350.0600.00018.96
5.4.340.0630.00019.09
5.4.320.0170.04612.45
5.4.310.0070.05312.45
5.4.300.0080.04712.46
5.4.290.0110.04712.45
5.4.280.0120.04212.35
5.4.270.0090.04512.35
5.4.260.0090.04912.35
5.4.250.0080.04912.35
5.4.240.0080.04312.35
5.4.230.0110.05212.34
5.4.220.0080.04212.34
5.4.210.0080.04212.34
5.4.200.0070.04312.34
5.4.190.0090.03912.34
5.4.180.0060.04112.34
5.4.170.0120.03612.35
5.4.160.0070.03812.34
5.4.150.0090.03612.34
5.4.140.0090.04012.02
5.4.130.0060.03912.02
5.4.120.0070.04011.97
5.4.110.0110.03511.97
5.4.100.0080.04711.97
5.4.90.0110.04511.96
5.4.80.0090.03911.96
5.4.70.0070.03811.96
5.4.60.0110.04211.96
5.4.50.0070.03911.96
5.4.40.0080.04111.95
5.4.30.0140.03411.94
5.4.20.0170.03111.95
5.4.10.0060.04011.95
5.4.00.0120.04411.44
5.3.290.0110.03912.80
5.3.280.0050.04212.71
5.3.270.0120.03912.72
5.3.260.0110.04112.72
5.3.250.0080.04212.72
5.3.240.0100.05012.72
5.3.230.0110.04512.71
5.3.220.0100.04112.68
5.3.210.0120.04912.68
5.3.200.0140.04112.68
5.3.190.0140.04712.67
5.3.180.0120.04812.67
5.3.170.0140.04712.66
5.3.160.0150.05012.67
5.3.150.0110.05112.68
5.3.140.0110.05012.66
5.3.130.0160.04712.66
5.3.120.0110.05012.66
5.3.110.0110.04612.66
5.3.100.0080.03512.12
5.3.90.0080.03512.09
5.3.80.0080.03612.07
5.3.70.0070.03812.07
5.3.60.0090.03612.06
5.3.50.0090.03912.00
5.3.40.0100.03612.00
5.3.30.0070.04411.94
5.3.20.0150.04111.72
5.3.10.0110.03611.69
5.3.00.0100.03311.68
5.2.170.0100.0289.18
5.2.160.0080.0299.18
5.2.150.0030.0389.18
5.2.140.0110.0369.17
5.2.130.0080.0279.13
5.2.120.0090.0279.13
5.2.110.0040.0299.14
5.2.100.0080.0309.14
5.2.90.0090.0369.14
5.2.80.0070.0409.13
5.2.70.0060.0359.14
5.2.60.0080.0309.09
5.2.50.0090.0329.05
5.2.40.0080.0359.03
5.2.30.0070.0349.01
5.2.20.0070.0298.99
5.2.10.0040.0298.91
5.2.00.0050.0308.78
5.1.60.0050.0248.06
5.1.50.0050.0268.06
5.1.40.0060.0268.04
5.1.30.0030.0358.39
5.1.20.0090.0308.41
5.1.10.0050.0308.13
5.1.00.0070.0248.13
5.0.50.0040.0216.61
5.0.40.0030.0216.47
5.0.30.0070.0316.28
5.0.20.0030.0216.26
5.0.10.0030.0226.23
5.0.00.0030.0316.23
4.4.90.0030.0154.78
4.4.80.0040.0144.76
4.4.70.0000.0184.75
4.4.60.0010.0174.76
4.4.50.0010.0174.77
4.4.40.0020.0264.71
4.4.30.0040.0154.76
4.4.20.0030.0154.84
4.4.10.0020.0164.85
4.4.00.0010.0274.76
4.3.110.0030.0174.67
4.3.100.0030.0174.67
4.3.90.0030.0154.63
4.3.80.0040.0254.59
4.3.70.0020.0164.63
4.3.60.0020.0164.63
4.3.50.0040.0154.62
4.3.40.0020.0274.54
4.3.30.0010.0173.28
4.3.20.0040.0153.26
4.3.10.0010.0213.21
4.3.00.0000.01713.59

preferences:
53.11 ms | 401 KiB | 5 Q