3v4l.org

run code in 300+ PHP versions simultaneously
<?php $header = array('test'); if (isset($header[0]['class']) && 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)
8.3.60.0060.00918.28
8.3.50.0080.01222.12
8.3.40.0170.00018.84
8.3.30.0110.01119.01
8.3.20.0080.00020.33
8.3.10.0050.00520.46
8.3.00.0050.00319.25
8.2.180.0140.00718.32
8.2.170.0120.00919.14
8.2.160.0070.00722.96
8.2.150.0040.00425.66
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00322.10
8.2.110.0040.00420.36
8.2.100.0040.01118.03
8.2.90.0000.00819.20
8.2.80.0000.00817.97
8.2.70.0000.00817.38
8.2.60.0040.00417.90
8.2.50.0060.00318.07
8.2.40.0030.00619.88
8.2.30.0030.00618.04
8.2.20.0030.00517.84
8.2.10.0000.00718.04
8.2.00.0050.00317.73
8.1.280.0060.00925.92
8.1.270.0000.00823.81
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00323.79
8.1.230.0070.00418.93
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0060.00317.22
8.1.190.0070.00317.35
8.1.180.0000.00918.10
8.1.170.0050.00318.47
8.1.160.0000.00822.10
8.1.150.0040.00418.88
8.1.140.0070.00017.38
8.1.130.0030.00317.86
8.1.120.0040.00417.36
8.1.110.0040.00417.47
8.1.100.0030.00317.34
8.1.90.0040.00417.34
8.1.80.0000.00817.51
8.1.70.0030.00517.41
8.1.60.0040.00417.56
8.1.50.0030.00517.54
8.1.40.0000.00817.51
8.1.30.0080.00017.57
8.1.20.0000.00817.63
8.1.10.0000.00717.63
8.1.00.0040.00417.38
8.0.300.0050.00218.77
8.0.290.0040.00416.75
8.0.280.0000.00718.43
8.0.270.0030.00317.26
8.0.260.0040.00417.29
8.0.250.0000.00716.97
8.0.240.0030.00316.95
8.0.230.0070.00016.81
8.0.220.0030.00316.87
8.0.210.0030.00316.88
8.0.200.0030.00316.94
8.0.190.0040.00416.99
8.0.180.0070.00016.94
8.0.170.0040.00416.91
8.0.160.0040.00416.84
8.0.150.0070.00016.87
8.0.140.0000.00816.82
8.0.130.0030.00313.42
8.0.120.0040.00416.80
8.0.110.0050.00316.91
8.0.100.0040.00416.91
8.0.90.0040.00416.71
8.0.80.0080.01116.81
8.0.70.0040.00416.72
8.0.60.0000.00716.93
8.0.50.0070.00016.68
8.0.30.0120.00917.03
8.0.20.0090.01017.40
8.0.10.0040.00416.91
8.0.00.0110.00516.85
7.4.330.0000.00515.20
7.4.320.0040.00416.59
7.4.300.0030.00316.45
7.4.290.0070.00016.54
7.4.280.0040.00416.57
7.4.270.0030.00316.61
7.4.260.0040.00416.50
7.4.250.0000.00716.47
7.4.240.0010.00616.55
7.4.230.0000.00716.38
7.4.220.0150.00316.53
7.4.210.0000.01316.53
7.4.200.0000.00716.38
7.4.160.0120.00916.23
7.4.150.0120.00617.40
7.4.140.0110.00717.86
7.4.130.0060.01116.46
7.4.120.0110.00816.53
7.4.110.0080.00916.48
7.4.100.0040.01516.42
7.4.90.0090.00916.51
7.4.80.0090.01319.39
7.4.70.0140.00316.48
7.4.60.0060.01216.36
7.4.50.0060.00316.31
7.4.40.0070.01016.61
7.4.30.0150.00616.56
7.4.00.0030.01214.94
7.3.330.0070.00013.09
7.3.320.0030.00313.13
7.3.310.0000.00716.39
7.3.300.0030.00316.21
7.3.290.0060.00916.30
7.3.280.0060.00916.27
7.3.270.0140.00417.40
7.3.260.0090.01316.54
7.3.250.0140.00216.37
7.3.240.0120.00616.44
7.3.230.0100.01016.53
7.3.210.0030.01216.31
7.3.200.0110.00719.39
7.3.190.0030.01316.35
7.3.180.0070.00716.20
7.3.170.0160.00716.63
7.3.160.0060.00916.41
7.3.10.0060.00616.62
7.3.00.0060.00616.46
7.2.330.0120.00616.55
7.2.320.0100.00616.53
7.2.310.0060.01316.63
7.2.300.0060.01016.43
7.2.290.0030.02116.68
7.2.130.0090.00016.63
7.2.120.0060.00916.58
7.2.110.0030.01716.37
7.2.100.0070.01316.62
7.2.90.0030.01016.91
7.2.80.0110.00716.63
7.2.70.0110.00716.73
7.2.60.0030.00916.88
7.2.50.0030.01316.68
7.2.40.0030.00716.83
7.2.30.0090.00316.86
7.2.20.0120.00416.85
7.2.10.0060.00616.86
7.2.00.0100.00517.93
7.1.250.0030.00615.69
7.1.100.0000.01017.79
7.1.70.0000.00816.96
7.1.60.0070.00419.32
7.1.50.0070.01416.80
7.1.00.0100.07022.33
7.0.200.0030.00516.57
7.0.140.0030.07322.15
7.0.60.0030.08319.82
7.0.50.0170.05717.85
7.0.40.0000.09320.12
7.0.30.0400.04720.09
7.0.20.0170.06019.96
7.0.10.0000.04720.13
7.0.00.0200.07320.09
5.6.280.0130.06321.12
5.6.210.0070.04020.47
5.6.200.0130.07318.16
5.6.190.0030.08720.52
5.6.180.0570.06720.63
5.6.170.0330.03720.61
5.6.160.0100.07320.61
5.6.150.0100.07018.12
5.6.140.0100.08018.18
5.6.130.0000.06718.14
5.6.120.0070.08021.05
5.6.110.0100.08321.11
5.6.100.0000.09021.13
5.6.90.0100.08020.98
5.6.80.0200.06720.40
5.5.350.0130.06720.43
5.5.340.0070.06717.97
5.5.330.0070.08320.19
5.5.320.0400.07320.20
5.5.310.0200.03720.17
5.5.300.0070.08317.88
5.5.290.0100.06317.93
5.5.280.0170.07720.61
5.5.270.0070.08320.66
5.5.260.0100.07720.76
5.5.250.0070.08020.71
5.5.240.0200.06320.21
5.4.450.0930.03719.57
5.4.440.0400.04019.42
5.4.430.0470.04719.38
5.4.420.0630.00019.45
5.4.410.0670.00019.41
5.4.400.0730.00019.20
5.4.390.0600.00019.08
5.4.380.0630.00019.16
5.4.370.0600.00019.17
5.4.360.0600.00019.07
5.4.350.0630.00019.09
5.4.340.0600.00019.00
5.4.320.0050.04012.46
5.4.310.0090.04312.45
5.4.300.0050.04112.45
5.4.290.0040.04512.45
5.4.280.0060.03712.35
5.4.270.0080.03412.35
5.4.260.0070.03612.35
5.4.250.0070.03612.35
5.4.240.0090.03912.35
5.4.230.0050.03912.34
5.4.220.0090.03912.34
5.4.210.0030.04112.34
5.4.200.0090.04312.34
5.4.190.0070.04112.34
5.4.180.0110.03212.34
5.4.170.0030.04012.35
5.4.160.0060.04212.34
5.4.150.0050.03812.34
5.4.140.0060.03712.02
5.4.130.0090.03212.02
5.4.120.0040.03711.97
5.4.110.0050.03711.96
5.4.100.0040.03611.96
5.4.90.0080.03911.96
5.4.80.0060.03811.97
5.4.70.0060.03511.96
5.4.60.0050.03611.96
5.4.50.0040.03711.96
5.4.40.0040.03711.95
5.4.30.0070.03411.94
5.4.20.0080.03711.95
5.4.10.0090.03911.95
5.4.00.0050.04511.43
5.3.290.0090.04112.80
5.3.280.0050.03912.71
5.3.270.0050.04112.72
5.3.260.0070.04512.72
5.3.250.0090.03712.72
5.3.240.0090.03812.72
5.3.230.0050.04112.71
5.3.220.0080.04112.68
5.3.210.0060.03912.68
5.3.200.0070.04412.68
5.3.190.0070.04412.68
5.3.180.0080.04012.68
5.3.170.0110.04512.67
5.3.160.0050.05012.67
5.3.150.0050.04012.68
5.3.140.0110.04412.66
5.3.130.0080.03812.66
5.3.120.0070.04112.66
5.3.110.0100.03812.66
5.3.100.0100.03612.12
5.3.90.0060.03912.08
5.3.80.0070.03612.07
5.3.70.0080.03512.07
5.3.60.0060.03912.06
5.3.50.0080.04212.00
5.3.40.0070.03812.00
5.3.30.0060.03711.95
5.3.20.0080.04111.72
5.3.10.0070.03411.69
5.3.00.0100.03911.68
5.2.170.0060.0309.18
5.2.160.0040.0319.18
5.2.150.0060.0309.18
5.2.140.0060.0309.17
5.2.130.0070.0279.13
5.2.120.0050.0289.14
5.2.110.0030.0309.14
5.2.100.0030.0309.14
5.2.90.0010.0339.14
5.2.80.0070.0289.14
5.2.70.0060.0309.14
5.2.60.0050.0309.08
5.2.50.0060.0339.06
5.2.40.0030.0319.04
5.2.30.0070.0319.00
5.2.20.0060.0299.00
5.2.10.0040.0298.91
5.2.00.0030.0388.78
5.1.60.0050.0238.06
5.1.50.0040.0308.06
5.1.40.0080.0218.04
5.1.30.0020.0288.39
5.1.20.0060.0258.41
5.1.10.0040.0268.13
5.1.00.0080.0268.13
5.0.50.0030.0216.62
5.0.40.0090.0266.47
5.0.30.0030.0356.29
5.0.20.0060.0246.26
5.0.10.0030.0216.23
5.0.00.0030.0306.23
4.4.90.0050.0134.78
4.4.80.0030.0154.76
4.4.70.0030.0154.75
4.4.60.0020.0164.75
4.4.50.0040.0144.77
4.4.40.0030.0254.71
4.4.30.0030.0154.76
4.4.20.0050.0154.84
4.4.10.0040.0144.85
4.4.00.0020.0254.76
4.3.110.0030.0154.66
4.3.100.0030.0164.66
4.3.90.0030.0184.64
4.3.80.0060.0214.58
4.3.70.0030.0144.63
4.3.60.0000.0174.63
4.3.50.0030.0154.63
4.3.40.0010.0284.54
4.3.30.0020.0173.29
4.3.20.0010.0183.26
4.3.10.0010.0173.22
4.3.00.0030.01313.60

preferences:
31 ms | 401 KiB | 5 Q