3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = NULL; isset($x['foo']->bar->k['x']);

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)
8.3.60.0040.01116.38
8.3.50.0140.00523.00
8.3.40.0060.01518.67
8.3.30.0130.00019.09
8.3.20.0040.00420.38
8.3.10.0040.00423.71
8.3.00.0050.00319.50
8.2.180.0120.00416.50
8.2.170.0110.00422.96
8.2.160.0040.01220.36
8.2.150.0000.00824.18
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0000.00921.00
8.2.110.0060.00320.43
8.2.100.0060.00618.16
8.2.90.0080.00019.02
8.2.80.0050.00317.97
8.2.70.0050.00317.50
8.2.60.0000.00817.79
8.2.50.0000.00918.07
8.2.40.0060.00618.28
8.2.30.0040.00419.37
8.2.20.0040.00417.69
8.2.10.0030.00617.88
8.2.00.0000.00717.64
8.1.280.0100.01025.92
8.1.270.0060.00324.02
8.1.260.0040.00426.35
8.1.250.0020.00528.09
8.1.240.0040.00423.96
8.1.230.0070.00419.20
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0060.00317.35
8.1.190.0030.00517.13
8.1.180.0070.00018.10
8.1.170.0030.00518.57
8.1.160.0000.00722.00
8.1.150.0000.00718.83
8.1.140.0040.00417.49
8.1.130.0000.00717.80
8.1.120.0000.00717.29
8.1.110.0040.00417.25
8.1.100.0070.00017.43
8.1.90.0000.00717.31
8.1.80.0070.00017.32
8.1.70.0000.00717.27
8.1.60.0000.01217.40
8.1.50.0040.00417.39
8.1.40.0040.00417.32
8.1.30.0000.00817.53
8.1.20.0050.00217.59
8.1.10.0060.00317.55
8.1.00.0070.00017.34
8.0.300.0050.00318.77
8.0.290.0040.00416.63
8.0.280.0040.00418.29
8.0.270.0000.00717.19
8.0.260.0000.00617.14
8.0.250.0000.00716.77
8.0.240.0060.00016.76
8.0.230.0030.00316.87
8.0.220.0030.00316.83
8.0.210.0070.00016.86
8.0.200.0070.00016.80
8.0.190.0090.00316.88
8.0.180.0040.00416.79
8.0.170.0050.00316.83
8.0.160.0070.00016.70
8.0.150.0050.00216.77
8.0.140.0030.00416.71
8.0.130.0000.00513.24
8.0.120.0040.00416.83
8.0.110.0070.00016.76
8.0.100.0040.00416.88
8.0.90.0000.00816.71
8.0.80.0070.01016.70
8.0.70.0050.00316.84
8.0.60.0030.00616.82
8.0.50.0080.00016.72
8.0.30.0120.01316.87
8.0.20.0110.00917.40
8.0.10.0030.00316.78
8.0.00.0100.00616.58
7.4.330.0020.00215.12
7.4.320.0070.00016.42
7.4.300.0060.00016.60
7.4.290.0030.00316.57
7.4.280.0000.00716.48
7.4.270.0070.00016.64
7.4.260.0030.00316.58
7.4.250.0000.00716.57
7.4.240.0030.00316.48
7.4.230.0070.00016.70
7.4.220.0110.00816.60
7.4.210.0070.01316.50
7.4.200.0070.00016.70
7.4.160.0070.01016.62
7.4.150.0090.00917.40
7.4.140.0030.01317.86
7.4.130.0080.01016.45
7.4.120.0120.00516.67
7.4.110.0140.01016.75
7.4.100.0090.00916.44
7.4.90.0100.00716.59
7.4.80.0130.00319.39
7.4.70.0080.00816.35
7.4.60.0180.01016.43
7.4.50.0000.00516.52
7.4.40.0100.00716.50
7.4.30.0030.01216.36
7.4.00.0130.00515.01
7.3.330.0030.00313.00
7.3.320.0000.00513.17
7.3.310.0000.00616.25
7.3.300.0030.00316.28
7.3.290.0090.00916.29
7.3.280.0070.01016.28
7.3.270.0090.00817.40
7.3.260.0090.00616.30
7.3.250.0110.01016.45
7.3.240.0090.00916.33
7.3.230.0070.01016.39
7.3.210.0080.00816.55
7.3.200.0100.01119.39
7.3.190.0080.01116.54
7.3.180.0090.00616.11
7.3.170.0110.00816.36
7.3.160.0100.01016.32
7.3.120.0070.01114.89
7.3.110.0100.00614.76
7.3.100.0000.01014.79
7.3.90.0090.00914.71
7.3.80.0090.00914.90
7.3.70.0030.00714.79
7.3.60.0070.00714.71
7.3.50.0000.01314.50
7.3.40.0090.00614.66
7.3.30.0070.01014.52
7.3.20.0090.00316.45
7.3.10.0070.01016.42
7.3.00.0030.01016.76
7.2.330.0120.01216.66
7.2.320.0000.01616.55
7.2.310.0100.01016.29
7.2.300.0100.00716.46
7.2.290.0130.00316.52
7.2.250.0040.01215.05
7.2.240.0060.01515.05
7.2.230.0030.01214.77
7.2.220.0040.01114.77
7.2.210.0060.00914.55
7.2.200.0100.00315.08
7.2.190.0040.01014.93
7.2.180.0140.00014.80
7.2.170.0050.00514.69
7.2.00.0040.00719.09
7.1.330.0070.00715.84
7.1.320.0090.00615.83
7.1.310.0120.00615.66
7.1.300.0070.00715.39
7.1.290.0150.00015.74
7.1.280.0050.00515.86
7.1.270.0060.00615.56
7.1.260.0030.00915.53
7.1.200.0000.00915.75
7.1.100.0070.00318.07
7.1.70.0070.00016.96
7.1.60.0070.01719.46
7.1.50.0070.01316.55
7.1.00.0000.07722.54
7.0.200.0140.00716.26
7.0.140.0100.06321.99
7.0.60.0130.07319.88
7.0.50.0070.08017.91
7.0.40.0030.04320.39
7.0.30.0270.06320.00
7.0.20.0300.05019.99
7.0.10.0100.08320.04
7.0.00.0000.04320.08
5.6.280.0030.07021.07
5.6.210.0100.06320.55
5.6.200.0070.06018.16
5.6.190.0100.04020.41
5.6.180.0270.08020.64
5.6.170.0230.08020.48
5.6.160.0170.07320.32
5.6.150.0070.08018.20
5.6.140.0070.05018.12
5.6.130.0170.07718.08
5.6.120.0100.03721.02
5.6.110.0130.08021.08
5.6.100.0030.07021.04
5.6.90.0170.06021.11
5.6.80.0030.08320.37
5.6.70.4470.04320.34
5.5.350.0200.08020.31
5.5.340.0130.06718.02
5.5.330.0030.05320.37
5.5.320.0330.05720.32
5.5.310.0300.07320.28
5.5.300.0000.04018.00
5.5.290.0100.07717.92
5.5.280.0030.08320.80
5.5.270.0130.07720.97
5.5.260.0070.09020.76
5.5.250.0200.05020.68
5.5.240.0300.06720.11
5.4.450.0000.06019.21
5.4.440.0570.04719.46
5.4.430.0700.03719.57
5.4.420.0000.05019.42
5.4.410.0270.04019.29
5.4.400.0200.03719.07
5.4.390.0230.04718.77
5.4.380.0330.06018.54
5.4.370.0230.06018.62
5.4.360.0330.04718.62
5.4.350.0530.06018.50
5.4.340.0330.07018.64
5.4.320.0050.03712.45
5.4.310.0070.03612.45
5.4.300.0070.03612.46
5.4.290.0090.03712.45
5.4.280.0060.03712.35
5.4.270.0110.03512.35
5.4.260.0100.04112.35
5.4.250.0090.03412.35
5.4.240.0040.04112.35
5.4.230.0100.03812.34
5.4.220.0100.04112.34
5.4.210.0130.03312.34
5.4.200.0070.03812.34
5.4.190.0070.03512.34
5.4.180.0070.04112.34
5.4.170.0080.04412.35
5.4.160.0050.04012.34
5.4.150.0070.03412.34
5.4.140.0040.04512.02
5.4.130.0070.03912.02
5.4.120.0080.04411.97
5.4.110.0100.03511.97
5.4.100.0080.03511.97
5.4.90.0100.03911.96
5.4.80.0080.03811.96
5.4.70.0080.03811.96
5.4.60.0080.04011.96
5.4.50.0070.04011.96
5.4.40.0060.03411.95
5.4.30.0110.03711.95
5.4.20.0090.03311.95
5.4.10.0080.03911.95
5.4.00.0050.03511.43
5.3.290.0070.05312.80
5.3.280.0120.03712.70
5.3.270.0090.03912.73
5.3.260.0040.04112.72
5.3.250.0060.03712.72
5.3.240.0080.03612.72
5.3.230.0080.03612.71
5.3.220.0070.03512.68
5.3.210.0070.04812.68
5.3.200.0090.04412.68
5.3.190.0120.03812.68
5.3.180.0050.04112.67
5.3.170.0090.04112.66
5.3.160.0120.04012.67
5.3.150.0090.03912.68
5.3.140.0070.03612.66
5.3.130.0070.04212.66
5.3.120.0060.04712.66
5.3.110.0080.04112.65
5.3.100.0100.04012.12
5.3.90.0110.03312.08
5.3.80.0080.03812.08
5.3.70.0040.04612.08
5.3.60.0060.04112.07
5.3.50.0090.03912.00
5.3.40.0100.03712.00
5.3.30.0100.04011.94
5.3.20.0110.04211.71
5.3.10.0080.04011.69
5.3.00.0050.03811.68
5.2.170.0080.0329.17
5.2.160.0050.0309.17
5.2.150.0100.0339.18
5.2.140.0060.0329.17
5.2.130.0040.0309.13
5.2.120.0080.0269.13
5.2.110.0060.0329.14
5.2.100.0060.0279.13
5.2.90.0050.0339.13
5.2.80.0070.0339.13
5.2.70.0040.0349.13
5.2.60.0100.0279.09
5.2.50.0040.0319.06
5.2.40.0020.0359.03
5.2.30.0040.0329.00
5.2.20.0100.0308.99
5.2.10.0060.0348.92
5.2.00.0080.0288.77
5.1.60.0040.0258.06
5.1.50.0050.0278.06
5.1.40.0040.0268.04
5.1.30.0070.0348.39
5.1.20.0070.0398.41
5.1.10.0050.0308.14
5.1.00.0060.0278.14
5.0.50.0040.0246.61
5.0.40.0070.0236.48
5.0.30.0050.0376.28
5.0.20.0050.0206.26
5.0.10.0080.0216.24
5.0.00.0040.0316.23
4.4.90.0040.0174.78
4.4.80.0030.0214.75
4.4.70.0030.0204.76
4.4.60.0040.0164.75
4.4.50.0030.0154.77
4.4.40.0000.0274.70
4.4.30.0070.0144.76
4.4.20.0080.0184.84
4.4.10.0040.0184.85
4.4.00.0030.0264.76
4.3.110.0050.0194.67
4.3.100.0010.0184.67
4.3.90.0050.0174.64
4.3.80.0030.0244.58
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0040.0144.63
4.3.40.0030.0234.54
4.3.30.0030.0153.28
4.3.20.0020.0153.25
4.3.10.0020.0153.21
4.3.00.0130.03311.18

preferences:
38.33 ms | 401 KiB | 5 Q