3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 0; $a = array($x); $b = &$a; $x = 2; unset($x); $b[1]++; $b[0]++; echo $a[0], ' ', $b[0];

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)
8.3.60.0100.00718.43
8.3.50.0170.00522.05
8.3.40.0070.01118.79
8.3.30.0140.00019.10
8.3.20.0100.00720.14
8.3.10.0000.00723.61
8.3.00.0060.00919.23
8.2.180.0100.00716.75
8.2.170.0110.00422.96
8.2.160.0070.00720.52
8.2.150.0050.00224.18
8.2.140.0080.00024.66
8.2.130.0060.00326.16
8.2.120.0000.00822.25
8.2.110.0060.00319.08
8.2.100.0090.00317.78
8.2.90.0040.00418.03
8.2.80.0040.00717.97
8.2.70.0040.00417.93
8.2.60.0030.00617.93
8.2.50.0030.00618.22
8.2.40.0050.00320.64
8.2.30.0000.00820.97
8.2.20.0040.00417.67
8.2.10.0040.00418.24
8.2.00.0070.00417.71
8.1.280.0090.00925.92
8.1.270.0140.00323.70
8.1.260.0060.00326.35
8.1.250.0120.00328.09
8.1.240.0030.00723.78
8.1.230.0080.00320.91
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0040.00417.23
8.1.190.0050.00517.11
8.1.180.0080.00018.10
8.1.170.0080.00018.52
8.1.160.0000.00818.89
8.1.150.0040.00418.88
8.1.140.0040.00417.35
8.1.130.0030.00517.74
8.1.120.0000.00717.36
8.1.110.0080.00017.35
8.1.100.0030.00317.35
8.1.90.0040.00417.48
8.1.80.0040.00417.44
8.1.70.0000.00717.41
8.1.60.0050.00317.63
8.1.50.0030.00517.53
8.1.40.0070.00017.51
8.1.30.0060.00317.54
8.1.20.0080.00017.63
8.1.10.0050.00217.45
8.1.00.0060.00317.47
8.0.300.0080.00019.85
8.0.290.0040.00716.75
8.0.280.0070.00018.34
8.0.270.0000.00717.20
8.0.260.0030.00317.25
8.0.250.0000.00617.00
8.0.240.0030.00316.91
8.0.230.0000.00716.88
8.0.220.0000.00816.92
8.0.210.0000.00817.00
8.0.200.0030.00316.92
8.0.190.0000.00816.98
8.0.180.0000.00716.87
8.0.170.0030.00517.01
8.0.160.0030.00317.01
8.0.150.0000.00816.97
8.0.140.0070.00016.96
8.0.130.0060.00013.25
8.0.120.0000.00716.88
8.0.110.0040.00416.94
8.0.100.0000.00716.81
8.0.90.0000.00816.75
8.0.80.0060.00916.93
8.0.70.0040.00417.00
8.0.60.0000.00716.94
8.0.50.0040.00416.89
8.0.30.0120.00717.06
8.0.20.0170.00717.40
8.0.10.0040.00417.08
8.0.00.0090.00916.87
7.4.330.0000.00515.00
7.4.320.0000.00716.64
7.4.300.0030.00316.64
7.4.290.0030.00316.65
7.4.280.0040.00716.50
7.4.270.0040.00416.62
7.4.260.0000.00716.47
7.4.250.0070.00016.48
7.4.240.0020.00516.48
7.4.230.0040.00416.63
7.4.220.0110.00616.61
7.4.210.0070.00616.61
7.4.200.0000.00816.54
7.4.160.0130.00316.54
7.4.150.0140.00417.40
7.4.140.0120.00817.86
7.4.130.0070.01016.61
7.4.120.0090.01216.58
7.4.110.0150.00316.41
7.4.100.0100.00716.64
7.4.90.0130.00316.58
7.4.80.0070.01119.39
7.4.70.0150.00616.54
7.4.60.0070.01016.53
7.4.50.0000.00816.22
7.4.40.0070.01016.75
7.4.30.0090.00716.39
7.4.00.0070.00715.26
7.3.330.0000.00513.33
7.3.320.0000.00513.25
7.3.310.0070.00016.50
7.3.300.0070.00016.41
7.3.290.0120.00916.40
7.3.280.0120.00516.40
7.3.270.0160.00317.40
7.3.260.0070.01716.51
7.3.240.0130.00616.39
7.3.230.0090.00916.39
7.3.210.0030.01316.32
7.3.200.0070.01119.39
7.3.190.0100.00716.36
7.3.180.0080.00816.43
7.3.170.0030.01316.39
7.3.160.0120.00916.57
7.2.330.0090.01016.70
7.2.320.0120.00616.65
7.2.310.0170.00816.68
7.2.300.0030.01316.66
7.2.290.0150.00816.66
7.2.80.0120.00316.49
7.2.60.0130.00616.68
7.1.200.0100.00015.70
7.1.100.0080.00318.26
7.1.70.0000.00717.38
7.1.60.0090.01519.32
7.1.50.0000.02316.94
7.1.00.0070.07322.46
7.0.200.0040.00816.79
7.0.140.0070.07322.00
7.0.60.0100.05719.99
7.0.50.0200.03317.77
7.0.40.0130.08320.03
7.0.30.0230.05320.09
7.0.20.0330.03719.96
7.0.10.0370.06020.33
7.0.00.0030.04720.21
5.6.280.0070.07020.85
5.6.210.0100.07720.50
5.6.200.0000.06318.12
5.6.190.0100.08320.77
5.6.180.3700.04320.57
5.6.170.0270.06020.41
5.6.160.0000.04320.37
5.6.150.0000.04718.11
5.6.140.0070.07718.13
5.6.130.0070.08718.11
5.6.120.0130.07020.96
5.6.110.0030.08320.95
5.6.100.0070.08020.97
5.6.90.0200.06020.98
5.6.80.0070.06020.39
5.6.70.4530.04020.39
5.5.350.0230.06720.45
5.5.340.0030.07017.98
5.5.330.0000.04720.57
5.5.320.0230.04020.18
5.5.310.0400.07020.26
5.5.300.0030.08018.02
5.5.290.0100.03317.91
5.5.280.0130.07720.64
5.5.270.0070.04020.63
5.5.260.0070.08320.72
5.5.250.0070.08720.68
5.5.240.0200.06720.27
5.4.450.1230.02719.46
5.4.440.0730.05319.42
5.4.430.0570.05319.54
5.4.420.0670.00019.14
5.4.410.0630.00019.52
5.4.400.0600.00019.03
5.4.390.0630.00019.08
5.4.380.0630.00018.97
5.4.370.0600.00018.91
5.4.360.0600.00019.16
5.4.350.0630.00019.00
5.4.340.0050.05011.97
5.4.320.0070.03512.45
5.4.310.0080.03512.45
5.4.300.0080.03312.45
5.4.290.0070.03712.45
5.4.280.0060.03412.34
5.4.270.0060.03912.35
5.4.260.0110.03612.34
5.4.250.0030.03912.35
5.4.240.0080.03912.34
5.4.230.0040.03912.34
5.4.220.0050.03512.34
5.4.210.0040.03512.34
5.4.200.0050.04312.34
5.4.190.0070.03712.34
5.4.180.0060.03412.34
5.4.170.0090.04012.34
5.4.160.0040.04112.34
5.4.150.0040.03612.34
5.4.140.0070.03612.02
5.4.130.0040.03812.01
5.4.120.0060.03411.96
5.4.110.0040.03611.96
5.4.100.0060.03611.96
5.4.90.0050.03711.97
5.4.80.0060.03511.96
5.4.70.0020.03911.96
5.4.60.0060.03611.96
5.4.50.0050.03511.96
5.4.40.0090.03011.95
5.4.30.0100.03111.95
5.4.20.0060.03411.95
5.4.10.0040.03811.95
5.4.00.0070.03511.44
5.3.290.0090.04012.80
5.3.280.0060.03712.70
5.3.270.0050.03812.73
5.3.260.0070.04112.72
5.3.250.0090.03612.72
5.3.240.0040.03812.72
5.3.230.0060.03712.71
5.3.220.0080.04212.68
5.3.210.0090.04012.68
5.3.200.0040.04012.68
5.3.190.0080.04112.68
5.3.180.0030.03812.67
5.3.170.0030.03812.67
5.3.160.0070.04012.67
5.3.150.0080.03312.67
5.3.140.0070.04112.66
5.3.130.0110.03812.65
5.3.120.0120.03512.66
5.3.110.0050.04212.66
5.3.100.0060.03712.12
5.3.90.0050.03612.08
5.3.80.0070.03512.07
5.3.70.0050.03712.08
5.3.60.0080.03312.06
5.3.50.0050.03612.00
5.3.40.0050.03612.00
5.3.30.0040.04011.94
5.3.20.0050.03511.72
5.3.10.0060.03311.69
5.3.00.0040.03711.68
5.2.170.0060.0289.18
5.2.160.0020.0329.18
5.2.150.0040.0319.18
5.2.140.0060.0289.17
5.2.130.0040.0299.13
5.2.120.0060.0279.14
5.2.110.0050.0299.14
5.2.100.0060.0319.14
5.2.90.0040.0309.14
5.2.80.0060.0369.13
5.2.70.0030.0319.13
5.2.60.0040.0329.09
5.2.50.0050.0319.06
5.2.40.0050.0299.03
5.2.30.0020.0329.02
5.2.20.0100.0249.00
5.2.10.0070.0278.93
5.2.00.0030.0308.79
5.1.60.0060.0238.07
5.1.50.0060.0238.07
5.1.40.0070.0238.05
5.1.30.0060.0248.41
5.1.20.0030.0298.43
5.1.10.0040.0278.15
5.1.00.0030.0268.15
5.0.50.0030.0216.63
5.0.40.0030.0196.48
5.0.30.0070.0326.30
5.0.20.0070.0246.27
5.0.10.0050.0276.25
5.0.00.0030.0326.24
4.4.90.0030.0154.78
4.4.80.0050.0134.75
4.4.70.0030.0224.75
4.4.60.0020.0204.76
4.4.50.0020.0164.77
4.4.40.0040.0244.71
4.4.30.0040.0144.76
4.4.20.0030.0154.84
4.4.10.0030.0154.85
4.4.00.0040.0324.76
4.3.110.0030.0154.67
4.3.100.0050.0124.66
4.3.90.0050.0184.64
4.3.80.0010.0264.58
4.3.70.0040.0214.63
4.3.60.0020.0154.63
4.3.50.0040.0144.63
4.3.40.0040.0224.54
4.3.30.0030.0143.29
4.3.20.0030.0143.27
4.3.10.0030.0143.23
4.3.00.0100.03014.27

preferences:
56.27 ms | 401 KiB | 5 Q