3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(-1); $x = []; if (!isset($x['y']['z']['a'])) { $x['y']['z']['a'] = 'foo'; } var_dump($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)
8.3.60.0140.00318.43
8.3.50.0100.00616.49
8.3.40.0140.00318.93
8.3.30.0070.01118.75
8.3.20.0080.00018.85
8.3.10.0090.00020.53
8.3.00.0080.00017.50
8.2.180.0070.01116.50
8.2.170.0090.00922.96
8.2.160.0060.00922.13
8.2.150.0000.00824.18
8.2.140.0070.00724.66
8.2.130.0070.00026.16
8.2.120.0070.00019.76
8.2.110.0090.00021.00
8.2.100.0040.00717.78
8.2.90.0000.00819.22
8.2.80.0000.00917.97
8.2.70.0060.00317.50
8.2.60.0040.00818.05
8.2.50.0000.00818.07
8.2.40.0020.00518.16
8.2.30.0000.01118.00
8.2.20.0040.00417.64
8.2.10.0020.00517.79
8.2.00.0060.00317.75
8.1.280.0110.00425.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.59
8.1.230.0080.00420.91
8.1.220.0050.00318.77
8.1.210.0040.00419.04
8.1.200.0060.00317.50
8.1.190.0050.00317.52
8.1.180.0050.00318.10
8.1.170.0080.00018.78
8.1.160.0070.00018.79
8.1.150.0040.00418.58
8.1.140.0000.00717.38
8.1.130.0070.00017.70
8.1.120.0000.00717.44
8.1.110.0070.00017.47
8.1.100.0000.00717.46
8.1.90.0000.00717.48
8.1.80.0000.00717.39
8.1.70.0000.00717.48
8.1.60.0060.00317.66
8.1.50.0070.00017.36
8.1.40.0000.00717.41
8.1.30.0070.00017.66
8.1.20.0040.00417.53
8.1.10.0060.00317.60
8.1.00.0000.00717.59
8.0.300.0000.00719.98
8.0.290.0070.00016.63
8.0.280.0030.00318.45
8.0.270.0030.00317.27
8.0.260.0000.00718.52
8.0.250.0070.00016.99
8.0.240.0030.00716.96
8.0.230.0000.00716.82
8.0.220.0030.00316.86
8.0.210.0050.00216.89
8.0.200.0050.00216.96
8.0.190.0000.00816.96
8.0.180.0000.00716.96
8.0.170.0090.00016.81
8.0.160.0050.00316.86
8.0.150.0000.00716.85
8.0.140.0090.00316.85
8.0.130.0000.00513.26
8.0.120.0070.00016.70
8.0.110.0040.00416.73
8.0.100.0040.00416.92
8.0.90.0030.00317.01
8.0.80.0110.01016.87
8.0.70.0000.00716.93
8.0.60.0040.00416.92
8.0.50.0040.00416.75
8.0.30.0080.01017.00
8.0.20.0080.01017.18
8.0.10.0000.00716.91
8.0.00.0100.01116.79
7.4.330.0000.00714.86
7.4.320.0000.00716.42
7.4.300.0030.00316.48
7.4.290.0000.00716.64
7.4.280.0000.00816.52
7.4.270.0000.00716.54
7.4.260.0060.00013.24
7.4.250.0030.00616.45
7.4.240.0000.00716.55
7.4.230.0000.00716.60
7.4.220.0140.00716.50
7.4.210.0080.00816.57
7.4.200.0000.00816.56
7.4.190.0000.00716.68
7.4.160.0060.00916.40
7.4.150.0160.00017.18
7.4.140.0140.00817.19
7.4.130.0080.01016.57
7.4.120.0070.01016.40
7.4.110.0060.01216.65
7.4.100.0060.01616.45
7.4.90.0100.00716.71
7.4.80.0060.01218.80
7.4.70.0130.01016.42
7.4.60.0130.00716.59
7.4.50.0030.00616.51
7.4.40.0070.00722.27
7.4.30.0120.00516.49
7.4.00.0000.01314.75
7.3.330.0030.00313.14
7.3.320.0050.00413.20
7.3.310.0030.00316.23
7.3.300.0000.00716.13
7.3.290.0090.00616.21
7.3.280.0110.00816.26
7.3.270.0100.00717.18
7.3.260.0140.00418.24
7.3.250.0100.00816.36
7.3.240.0100.01016.29
7.3.230.0060.01216.39
7.3.210.0080.00816.72
7.3.200.0140.00319.39
7.3.190.0170.00016.14
7.3.180.0100.00716.47
7.3.170.0100.01316.34
7.3.160.0150.00016.27
7.3.120.0050.00314.95
7.2.330.0040.01516.79
7.2.320.0110.00616.46
7.2.310.0110.01116.70
7.2.300.0040.01816.44
7.2.290.0070.01016.54
7.2.60.0180.00916.53
7.1.200.0050.00515.66
7.1.70.0030.00716.96
7.1.60.0100.00719.40
7.1.50.0080.00316.62
7.1.00.0000.04022.46
7.0.200.0000.00716.90
7.0.140.0100.06721.97
7.0.60.0100.05719.84
7.0.50.0000.04317.77
7.0.40.0170.04320.24
7.0.30.0200.07020.18
7.0.20.0300.06020.20
7.0.10.0200.07020.13
7.0.00.0130.07020.29
5.6.280.0000.07721.09
5.6.210.0130.08020.51
5.6.200.0130.06718.19
5.6.190.0030.09320.43
5.6.180.0200.04720.57
5.6.170.0170.04020.51
5.6.160.0070.05320.40
5.6.150.0070.07018.22
5.6.140.0030.03718.17
5.6.130.0100.03718.21
5.6.120.0100.08020.98
5.6.110.0070.04721.08
5.6.100.0100.06720.88
5.6.90.0070.07320.87
5.6.80.0100.06720.36
5.6.70.3900.03320.43
5.5.350.0170.08020.39
5.5.340.0100.05717.88
5.5.330.0070.05020.21
5.5.320.0400.08020.32
5.5.310.0270.08320.19
5.5.300.0100.03717.98
5.5.290.0030.04717.92
5.5.280.0070.06720.76
5.5.270.0030.05720.88
5.5.260.0000.06320.87
5.5.250.0200.07720.63
5.5.240.0100.06320.26
5.4.450.0270.05319.40
5.4.440.3600.04319.43
5.4.430.0100.05319.52
5.4.420.0100.05319.50
5.4.410.0070.05719.20
5.4.400.0100.05019.20
5.4.390.0030.05719.26
5.4.380.0130.06718.53
5.4.370.0130.06018.47
5.4.360.0300.04718.59
5.4.350.0090.03411.98
5.4.340.0080.04311.97
5.4.320.0030.03912.45
5.4.310.0060.04512.45
5.4.300.0100.05012.45
5.4.290.0080.04912.45
5.4.280.0080.04412.35
5.4.270.0100.05312.35
5.4.260.0080.04912.35
5.4.250.0070.05012.35
5.4.240.0070.04712.35
5.4.230.0100.05112.34
5.4.220.0110.05112.34
5.4.210.0100.05512.34
5.4.200.0120.05212.34
5.4.190.0060.04712.34
5.4.180.0060.04612.34
5.4.170.0090.04612.35
5.4.160.0090.04312.34
5.4.150.0090.04112.34
5.4.140.0120.04312.02
5.4.130.0070.04512.01
5.4.120.0100.04611.97
5.4.110.0080.03911.97
5.4.100.0090.03711.97
5.4.90.0060.04911.96
5.4.80.0070.04611.96
5.4.70.0050.04511.96
5.4.60.0070.04711.96
5.4.50.0080.04311.96
5.4.40.0090.04111.95
5.4.30.0070.04411.95
5.4.20.0090.04411.95
5.4.10.0090.04311.95
5.4.00.0090.04511.43
5.3.290.0040.04612.80
5.3.280.0080.04712.70
5.3.270.0050.05012.72
5.3.260.0070.05012.72
5.3.250.0090.04412.72
5.3.240.0080.04612.72
5.3.230.0090.04412.71
5.3.220.0090.04212.68
5.3.210.0070.04412.68
5.3.200.0070.03812.68
5.3.190.0060.04012.67
5.3.180.0070.04012.67
5.3.170.0070.04112.67
5.3.160.0070.04012.67
5.3.150.0060.04212.67
5.3.140.0090.04112.66
5.3.130.0080.04412.66
5.3.120.0100.03912.66
5.3.110.0100.04012.66
5.3.100.0050.04412.12
5.3.90.0080.04012.08
5.3.80.0090.03912.08
5.3.70.0070.04112.08
5.3.60.0070.04112.06

preferences:
37.07 ms | 401 KiB | 5 Q