3v4l.org

run code in 300+ PHP versions simultaneously
<?php $header = array(); if (isset($header[0]['bla'])) { 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)
8.3.40.0130.00718.84
8.3.30.0070.00719.23
8.3.20.0040.00420.16
8.3.10.0030.00620.53
8.3.00.0040.00419.38
8.2.170.0110.00322.96
8.2.160.0070.01320.43
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0050.00226.16
8.2.120.0000.00722.24
8.2.110.0070.00320.97
8.2.100.0000.01117.91
8.2.90.0000.00819.33
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0050.00318.04
8.2.50.0030.00718.07
8.2.40.0030.00519.82
8.2.30.0070.00017.94
8.2.20.0070.00017.56
8.2.10.0050.00318.05
8.2.00.0000.00717.66
8.1.270.0030.00623.79
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0060.00322.20
8.1.230.0080.00319.03
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0030.00617.23
8.1.180.0040.00418.10
8.1.170.0040.00418.51
8.1.160.0050.00322.02
8.1.150.0030.00518.75
8.1.140.0040.00417.46
8.1.130.0000.00717.75
8.1.120.0000.00717.42
8.1.110.0030.00617.38
8.1.100.0000.00717.41
8.1.90.0000.00717.30
8.1.80.0040.00417.44
8.1.70.0070.00017.38
8.1.60.0030.00617.56
8.1.50.0040.00417.38
8.1.40.0000.00817.52
8.1.30.0030.00517.59
8.1.20.0040.00417.61
8.1.10.0080.00017.59
8.1.00.0000.00817.50
8.0.300.0030.00320.10
8.0.290.0070.00016.74
8.0.280.0000.00718.34
8.0.270.0030.00317.11
8.0.260.0030.00317.30
8.0.250.0070.00016.79
8.0.240.0030.00316.84
8.0.230.0030.00316.88
8.0.220.0040.00416.86
8.0.210.0030.00316.72
8.0.200.0000.00616.76
8.0.190.0000.01016.79
8.0.180.0000.00716.84
8.0.170.0060.00316.86
8.0.160.0040.00416.95
8.0.150.0070.00016.82
8.0.140.0020.00516.69
8.0.130.0060.00013.29
8.0.120.0000.00816.79
8.0.110.0050.00316.74
8.0.100.0000.00716.65
8.0.90.0040.00416.66
8.0.80.0060.01016.79
8.0.70.0070.00016.72
8.0.60.0000.00716.90
8.0.50.0060.00316.66
8.0.30.0080.01217.28
8.0.20.0110.00817.40
8.0.10.0000.00717.07
8.0.00.0110.00916.78
7.4.330.0000.00515.08
7.4.320.0030.00316.34
7.4.300.0040.00416.30
7.4.290.0030.00316.53
7.4.280.0040.00416.44
7.4.270.0060.00016.55
7.4.260.0030.00316.57
7.4.250.0000.00816.34
7.4.240.0050.00216.37
7.4.230.0000.00716.26
7.4.220.0110.00716.41
7.4.210.0060.00816.57
7.4.200.0000.00716.34
7.4.160.0110.00416.43
7.4.150.0130.00717.40
7.4.140.0070.01217.86
7.4.130.0130.00816.32
7.4.120.0070.01016.46
7.4.110.0100.00716.55
7.4.100.0140.00416.46
7.4.90.0110.00716.50
7.4.80.0030.01419.39
7.4.70.0090.00616.47
7.4.60.0070.01016.49
7.4.50.0000.00916.50
7.4.40.0060.01816.56
7.4.30.0090.00616.53
7.4.00.0100.00714.79
7.3.330.0030.00313.18
7.3.320.0000.00513.18
7.3.310.0070.00016.25
7.3.300.0040.00416.29
7.3.290.0090.00616.30
7.3.280.0100.00816.30
7.3.270.0070.01117.40
7.3.260.0030.01516.31
7.3.250.0060.01116.34
7.3.240.0140.00616.52
7.3.230.0170.00016.52
7.3.210.0030.01216.55
7.3.200.0030.01319.39
7.3.190.0080.00816.51
7.3.180.0060.01016.34
7.3.170.0150.00616.43
7.3.160.0100.00716.20
7.2.330.0100.00716.38
7.2.320.0070.01016.72
7.2.310.0060.01516.50
7.2.300.0070.01016.55
7.2.290.0060.01516.28
7.2.00.0120.00619.32
7.1.100.0000.01117.99
7.1.70.0070.00317.08
7.1.60.0040.01819.32
7.1.50.0090.01216.50
7.1.00.0070.07322.33
7.0.200.0060.00316.81
7.0.140.0030.07022.19
7.0.60.0100.06319.90
7.0.50.0030.07717.87
7.0.40.0030.05019.96
7.0.30.0500.07320.09
7.0.20.0170.08720.04
7.0.10.0100.03720.12
7.0.00.0100.07020.20
5.6.210.0000.08320.47
5.6.200.0130.03718.22
5.6.190.0070.09020.60
5.6.180.0670.07720.61
5.6.170.0400.05720.33
5.6.160.0070.04020.46
5.6.150.0100.05018.18
5.6.140.0130.07718.23
5.6.130.0000.04318.21
5.6.120.0130.08020.91
5.6.110.0130.07720.97
5.6.100.0030.09321.06
5.6.90.0030.04720.87
5.6.80.0070.05020.39
5.5.350.0200.04020.45
5.5.340.0070.04717.91
5.5.330.0100.08320.47
5.5.320.0470.04320.30
5.5.310.0270.03020.27
5.5.300.0130.07317.91
5.5.290.0000.08718.01
5.5.280.0070.04320.79
5.5.270.0030.05320.72
5.5.260.0100.08320.78
5.5.250.0000.09020.49
5.5.240.0230.06020.18
5.4.450.0470.04019.41
5.4.440.1130.04719.57
5.4.430.0370.03019.13
5.4.420.0670.00019.48
5.4.410.0630.00019.24
5.4.400.0600.00019.03
5.4.390.0600.00018.98
5.4.380.0670.00019.07
5.4.370.0600.00018.96
5.4.360.0600.00019.00
5.4.350.0630.00019.05
5.4.340.0800.00019.09
5.4.320.0060.03912.45
5.4.310.0090.03812.45
5.4.300.0080.04812.45
5.4.290.0060.04112.45
5.4.280.0080.03512.35
5.4.270.0070.03712.34
5.4.260.0060.03712.34
5.4.250.0070.04012.34
5.4.240.0160.05412.34
5.4.230.0100.03512.34
5.4.220.0090.03412.34
5.4.210.0090.03712.34
5.4.200.0050.04212.34
5.4.190.0090.03412.33
5.4.180.0040.04312.33
5.4.170.0110.04812.34
5.4.160.0100.04012.34
5.4.150.0040.05112.34
5.4.140.0080.04712.02
5.4.130.0060.04912.01
5.4.120.0080.05011.97
5.4.110.0070.05111.97
5.4.100.0050.05011.96
5.4.90.0070.05311.96
5.4.80.0110.05011.96
5.4.70.0100.03611.96
5.4.60.0100.04811.96
5.4.50.0090.04511.96
5.4.40.0100.04011.95
5.4.30.0130.04611.95
5.4.20.0090.03411.95
5.4.10.0070.04211.95
5.4.00.0060.04511.43
5.3.290.0080.03912.80
5.3.280.0070.03812.71
5.3.270.0040.04412.72
5.3.260.0060.04012.72
5.3.250.0070.03812.72
5.3.240.0080.03612.72
5.3.230.0080.03712.71
5.3.220.0080.03612.68
5.3.210.0060.03912.68
5.3.200.0050.03712.68
5.3.190.0050.04412.67
5.3.180.0040.04012.68
5.3.170.0070.03712.67
5.3.160.0090.04012.67
5.3.150.0090.04312.67
5.3.140.0060.04112.66
5.3.130.0070.04612.65
5.3.120.0080.03712.66
5.3.110.0040.04112.66
5.3.100.0040.03912.12
5.3.90.0060.03812.08
5.3.80.0050.03712.07
5.3.70.0100.03312.07
5.3.60.0030.04312.06
5.3.50.0110.03612.00
5.3.40.0070.04612.00
5.3.30.0060.04711.94
5.3.20.0090.03511.72
5.3.10.0060.03511.69
5.3.00.0070.03511.67
5.2.170.0070.0359.18
5.2.160.0060.0349.18
5.2.150.0060.0359.18
5.2.140.0040.0349.18
5.2.130.0020.0319.14
5.2.120.0050.0289.13
5.2.110.0070.0289.14
5.2.100.0070.0369.13
5.2.90.0070.0339.13
5.2.80.0080.0439.13
5.2.70.0100.0389.13
5.2.60.0080.0399.09
5.2.50.0050.0419.05
5.2.40.0060.0349.04
5.2.30.0060.0309.00
5.2.20.0030.0359.00
5.2.10.0020.0348.91
5.2.00.0050.0328.77
5.1.60.0040.0328.06
5.1.50.0020.0298.05
5.1.40.0030.0258.04
5.1.30.0080.0268.39
5.1.20.0070.0288.41
5.1.10.0050.0338.14
5.1.00.0080.0228.13
5.0.50.0060.0236.61
5.0.40.0040.0256.47
5.0.30.0030.0336.29
5.0.20.0050.0236.26
5.0.10.0040.0196.23
5.0.00.0030.0316.22
4.4.90.0040.0164.78
4.4.80.0030.0164.75
4.4.70.0050.0234.75
4.4.60.0040.0144.76
4.4.50.0010.0174.77
4.4.40.0020.0264.70
4.4.30.0030.0184.76
4.4.20.0040.0204.85
4.4.10.0030.0234.84
4.4.00.0030.0284.75
4.3.110.0030.0184.66
4.3.100.0030.0154.66
4.3.90.0040.0134.63
4.3.80.0030.0294.58
4.3.70.0010.0174.63
4.3.60.0020.0154.63
4.3.50.0010.0174.63
4.3.40.0030.0244.54
4.3.30.0020.0163.28
4.3.20.0020.0163.25
4.3.10.0020.0153.21
4.3.00.0000.02013.60

preferences:
43.54 ms | 400 KiB | 5 Q