3v4l.org

run code in 300+ PHP versions simultaneously
<?php function byRef(&$r) { $r += 1; } $a = 1; byRef($r =& $a); var_dump($r);

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)
8.3.70.0000.01416.75
8.3.60.0120.00918.36
8.3.50.0140.00621.27
8.3.40.0090.00918.84
8.3.30.0060.00918.71
8.3.20.0000.00720.16
8.3.10.0040.00423.42
8.3.00.0040.00423.66
8.2.180.0120.00618.17
8.2.170.0110.00322.96
8.2.160.0100.00320.39
8.2.150.0060.00324.18
8.2.140.0000.01024.66
8.2.130.0050.00521.00
8.2.120.0050.00326.35
8.2.110.0090.00022.11
8.2.100.0110.00017.68
8.2.90.0000.00819.13
8.2.80.0090.00017.97
8.2.70.0150.00017.38
8.2.60.0060.00317.93
8.2.50.0030.00518.07
8.2.40.0030.00622.27
8.2.30.0000.00820.63
8.2.20.0000.00717.75
8.2.10.0030.00617.98
8.2.00.0000.00718.00
8.1.280.0030.01725.92
8.1.270.0060.01220.20
8.1.260.0000.00828.09
8.1.250.0000.00728.09
8.1.240.0100.00022.17
8.1.230.0040.00819.10
8.1.220.0050.00217.74
8.1.210.0050.00318.77
8.1.200.0060.00317.23
8.1.190.0000.00817.10
8.1.180.0060.00318.10
8.1.170.0040.00418.59
8.1.160.0070.00020.69
8.1.150.0040.00418.74
8.1.140.0000.00819.51
8.1.130.0030.00317.70
8.1.120.0050.00317.36
8.1.110.0070.00017.30
8.1.100.0050.00217.44
8.1.90.0000.00817.29
8.1.80.0000.00817.27
8.1.70.0030.00317.33
8.1.60.0000.00917.61
8.1.50.0040.00417.57
8.1.40.0030.00617.53
8.1.30.0000.00817.60
8.1.20.0000.00817.61
8.1.10.0000.00817.41
8.1.00.0040.00417.45
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.24
8.0.270.0070.00017.19
8.0.260.0040.00417.19
8.0.250.0000.00716.92
8.0.240.0070.00316.88
8.0.230.0040.00416.80
8.0.220.0090.00016.87
8.0.210.0000.00616.82
8.0.200.0000.00816.91
8.0.190.0000.00816.85
8.0.180.0040.00416.70
8.0.170.0030.00616.86
8.0.160.0000.00816.85
8.0.150.0040.00416.76
8.0.140.0100.00016.68
8.0.130.0030.00313.25
8.0.120.0000.00716.67
8.0.110.0040.00416.77
8.0.100.0000.00716.64
8.0.90.0080.00016.61
8.0.80.0030.01316.84
8.0.70.0040.00416.71
8.0.60.0050.00316.87
8.0.50.0020.00516.89
8.0.30.0120.00416.95
8.0.20.0100.00817.40
8.0.10.0000.00717.01
8.0.00.0100.00916.68
7.4.330.0060.00016.79
7.4.320.0000.00616.49
7.4.300.0060.00016.62
7.4.290.0000.00716.52
7.4.280.0040.00416.64
7.4.270.0000.00616.59
7.4.260.0030.00316.41
7.4.250.0040.00416.42
7.4.240.0030.00516.55
7.4.230.0040.00416.43
7.4.220.0000.01516.60
7.4.210.0140.00016.70
7.4.200.0040.00416.62
7.4.160.0100.01316.57
7.4.150.0070.01017.40
7.4.140.0070.01317.86
7.4.130.0120.00516.51
7.4.120.0090.00816.47
7.4.110.0060.01716.49
7.4.100.0140.00316.50
7.4.90.0120.00516.54
7.4.80.0110.00719.39
7.4.70.0070.01116.54
7.4.60.0130.00316.46
7.4.50.0030.01316.10
7.4.40.0100.00616.55
7.4.30.0150.00816.50
7.4.00.0060.01214.90
7.3.330.0030.00313.32
7.3.320.0000.00513.09
7.3.310.0040.00416.20
7.3.300.0040.00416.29
7.3.290.0130.00416.30
7.3.280.0090.00816.29
7.3.270.0170.00017.40
7.3.260.0110.00616.61
7.3.250.0080.00916.28
7.3.240.0080.01016.44
7.3.230.0130.00616.45
7.3.210.0030.01316.38
7.3.200.0070.01016.18
7.3.190.0080.00816.38
7.3.180.0170.00016.35
7.3.170.0060.01216.60
7.3.160.0100.00616.50
7.2.330.0130.00516.53
7.2.320.0070.01716.50
7.2.310.0140.00816.47
7.2.300.0120.00816.39
7.2.290.0080.00816.59
7.2.00.0070.00419.36
7.1.100.0130.00018.13
7.1.70.0040.00817.27
7.1.60.0070.01419.52
7.1.50.0120.01216.74
7.1.00.0000.08022.48
7.0.200.0030.00616.81
7.0.60.0070.08320.02
7.0.50.0070.09017.86
7.0.40.0000.05020.18
7.0.30.0230.05320.20
7.0.20.0230.08020.24
7.0.10.0130.08720.33
7.0.00.0070.05720.23
5.6.280.0030.05320.82
5.6.210.0030.08320.55
5.6.200.0100.08018.27
5.6.190.0100.05320.61
5.6.180.0170.04020.53
5.6.170.0270.07720.44
5.6.160.0100.07720.55
5.6.150.0030.05318.17
5.6.140.0100.06318.19
5.6.130.0000.04318.15
5.6.120.0170.06321.02
5.6.110.0070.04021.01
5.6.100.0070.08721.02
5.6.90.0100.05020.95
5.6.80.0070.04720.51
5.5.350.0330.07320.39
5.5.340.0070.08017.94
5.5.330.0070.05320.35
5.5.320.0100.04720.30
5.5.310.0130.05020.19
5.5.300.0130.07017.94
5.5.290.0070.07718.04
5.5.280.0000.06020.89
5.5.270.0070.04020.88
5.5.260.0130.07320.96
5.5.250.0070.03720.69
5.5.240.0170.03320.36

preferences:
64.22 ms | 401 KiB | 5 Q