3v4l.org

run code in 300+ PHP versions simultaneously
<?php function ref(&$a) {} function val($a) {} $b = []; $a = $b['a']['b']; $a =& $b['a']['b']; val($b['a']['b']); ref($b['a']['b']); valn($b['a']['b']); refn($b['a']['b']);

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)
8.3.60.0150.00616.75
8.3.50.0070.01121.28
8.3.40.0040.01118.92
8.3.30.0110.00418.80
8.3.20.0070.00020.34
8.3.10.0000.00721.52
8.3.00.0060.00323.52
8.2.180.0150.00618.66
8.2.170.0070.00722.96
8.2.160.0070.00720.29
8.2.150.0060.00324.18
8.2.140.0060.00324.66
8.2.130.0080.00019.76
8.2.120.0100.00726.35
8.2.110.0030.00620.99
8.2.100.0040.00817.93
8.2.90.0000.00719.14
8.2.80.0050.00317.97
8.2.70.0080.00017.63
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0030.00622.13
8.2.30.0040.00419.49
8.2.20.0040.00417.73
8.2.10.0000.00718.06
8.2.00.0040.00417.94
8.1.280.0110.00425.92
8.1.270.0060.00923.90
8.1.260.0050.00228.09
8.1.250.0040.00428.09
8.1.240.0040.00422.59
8.1.230.0100.00019.06
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0050.00517.35
8.1.190.0030.00517.10
8.1.180.0040.00418.10
8.1.170.0000.00818.65
8.1.160.0060.00320.74
8.1.150.0070.00018.86
8.1.140.0000.00819.50
8.1.130.0030.00317.66
8.1.120.0040.00417.31
8.1.110.0050.00317.29
8.1.100.0040.00417.37
8.1.90.0000.00717.41
8.1.80.0000.00717.39
8.1.70.0080.00417.38
8.1.60.0000.00817.46
8.1.50.0000.00817.47
8.1.40.0080.00017.46
8.1.30.0000.00817.61
8.1.20.0040.00417.57
8.1.10.0000.00917.52
8.1.00.0050.00217.48
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.44
8.0.270.0040.00417.10
8.0.260.0030.00317.09
8.0.250.0070.00016.95
8.0.240.0030.00316.95
8.0.230.0000.00716.91
8.0.220.0040.00416.92
8.0.210.0070.00016.85
8.0.200.0030.00316.97
8.0.190.0070.00016.93
8.0.180.0030.00916.92
8.0.170.0080.00016.92
8.0.160.0000.00716.91
8.0.150.0070.00016.85
8.0.140.0060.00316.75
8.0.130.0050.00413.27
8.0.120.0030.00516.73
8.0.110.0070.00016.71
8.0.100.0050.00216.73
8.0.90.0040.00417.00
8.0.80.0070.01016.90
8.0.70.0040.00416.91
8.0.60.0000.00816.78
8.0.50.0000.00716.89
8.0.30.0090.01217.09
8.0.20.0110.00817.40
8.0.10.0040.00417.00
8.0.00.0080.01116.64
7.4.330.0000.00516.77
7.4.320.0060.00016.56
7.4.300.0000.00716.60
7.4.290.0030.00316.58
7.4.280.0030.00616.51
7.4.270.0000.00716.52
7.4.260.0000.00716.49
7.4.250.0000.00716.56
7.4.240.0070.00016.53
7.4.230.0070.00016.29
7.4.220.0000.02416.64
7.4.210.0070.00916.56
7.4.200.0000.00816.57
7.4.160.0070.01016.58
7.4.150.0100.00717.40
7.4.140.0060.01217.86
7.4.130.0110.01016.50
7.4.120.0150.00516.51
7.4.110.0050.01116.44
7.4.100.0070.01116.50
7.4.90.0170.00016.45
7.4.80.0100.00619.39
7.4.70.0160.00016.54
7.4.60.0040.01516.73
7.4.50.0000.01216.55
7.4.40.0100.00616.64
7.4.30.0110.00816.68
7.4.00.0090.00615.07
7.3.330.0000.00613.36
7.3.320.0030.00313.44
7.3.310.0050.00216.26
7.3.300.0000.00716.25
7.3.290.0040.00416.38
7.3.280.0110.00516.38
7.3.270.0080.01217.40
7.3.260.0120.00616.57
7.3.240.0050.01216.29
7.3.230.0070.01016.39
7.3.210.0030.01316.61
7.3.200.0140.00619.39
7.3.190.0090.00916.41
7.3.180.0090.00616.32
7.3.170.0030.01316.55
7.3.160.0130.00316.24
7.2.330.0040.01316.75
7.2.320.0110.00816.72
7.2.310.0100.00716.71
7.2.300.0160.00616.57
7.2.290.0110.00616.68
7.2.60.0140.00016.89
7.2.00.0030.00619.27
7.1.200.0040.00715.75
7.1.100.0080.00318.09
7.1.70.0000.01617.26
7.1.60.0000.02319.18
7.1.50.0060.01617.05
7.1.00.0070.07322.33
7.0.200.0320.01016.43
7.0.60.0070.08321.62
7.0.50.0130.07317.89
7.0.40.0070.05320.36
7.0.30.0170.04720.30
7.0.20.0370.07720.15
7.0.10.0130.08320.16
7.0.00.0100.04720.25
5.6.280.0030.03021.07
5.6.210.0000.09320.60
5.6.200.0030.04018.22
5.6.190.0030.04320.63
5.6.180.0500.05720.65
5.6.170.0270.08020.45
5.6.160.0230.06720.44
5.6.150.0170.04718.18
5.6.140.0100.05018.13
5.6.130.0100.08718.23
5.6.120.0100.07721.00
5.6.110.0070.07321.00
5.6.100.0030.08020.99
5.6.90.0030.08020.97
5.6.80.0170.07320.39
5.5.350.0270.07320.43
5.5.340.0070.08317.99
5.5.330.0000.04320.37
5.5.320.0300.03720.30
5.5.310.0330.07320.23
5.5.300.0070.07717.98
5.5.290.0100.08018.01
5.5.280.0130.04020.73
5.5.270.0030.05720.79
5.5.260.0100.03720.87
5.5.250.0070.03720.68
5.5.240.0130.07320.26

preferences:
59.44 ms | 401 KiB | 5 Q