3v4l.org

run code in 300+ PHP versions simultaneously
<?php function ref(&$a) {} function val($a) {} $b = []; $a = $b['a']['b']; $a =& $b['a']['b']; ref($b['a']['b']); val($b['a']['b']); refn($b['a']['b']); valn($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)
8.3.60.0140.00716.75
8.3.50.0120.00721.05
8.3.40.0070.00718.86
8.3.30.0110.00318.87
8.3.20.0080.00020.34
8.3.10.0030.00523.70
8.3.00.0000.00823.53
8.2.180.0060.01018.29
8.2.170.0040.01122.96
8.2.160.0070.00720.57
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00819.71
8.2.120.0070.00026.35
8.2.110.0060.00320.93
8.2.100.0080.00418.03
8.2.90.0000.00819.09
8.2.80.0000.00817.97
8.2.70.0000.00917.75
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0030.00622.30
8.2.30.0000.00819.54
8.2.20.0030.00517.68
8.2.10.0030.00518.06
8.2.00.0000.00818.09
8.1.280.0110.00425.92
8.1.270.0110.00423.96
8.1.260.0080.00028.09
8.1.250.0000.00728.09
8.1.240.0060.00322.47
8.1.230.0040.00819.01
8.1.220.0000.00717.79
8.1.210.0000.00818.77
8.1.200.0000.00917.35
8.1.190.0000.00917.23
8.1.180.0000.00718.10
8.1.170.0030.00518.46
8.1.160.0000.00720.62
8.1.150.0030.00618.79
8.1.140.0000.00719.47
8.1.130.0000.00717.63
8.1.120.0040.00417.41
8.1.110.0030.00517.32
8.1.100.0040.00417.33
8.1.90.0070.00017.38
8.1.80.0030.00617.34
8.1.70.0030.00617.36
8.1.60.0060.00317.58
8.1.50.0030.00517.53
8.1.40.0000.00717.51
8.1.30.0080.00017.65
8.1.20.0060.00317.64
8.1.10.0030.00517.47
8.1.00.0070.00017.43
8.0.300.0040.00418.77
8.0.290.0080.00016.63
8.0.280.0030.00318.39
8.0.270.0030.00317.19
8.0.260.0070.00017.11
8.0.250.0030.00317.01
8.0.240.0000.00717.01
8.0.230.0050.00216.95
8.0.220.0000.00816.85
8.0.210.0070.00016.86
8.0.200.0000.00716.87
8.0.190.0040.00416.94
8.0.180.0060.00316.82
8.0.170.0050.00316.83
8.0.160.0030.00316.89
8.0.150.0040.00316.87
8.0.140.0050.00316.82
8.0.130.0070.00013.35
8.0.120.0080.00016.86
8.0.110.0030.00516.95
8.0.100.0050.00316.75
8.0.90.0040.00416.77
8.0.80.0090.01216.85
8.0.70.0050.00316.90
8.0.60.0080.00016.95
8.0.50.0040.00416.79
8.0.30.0050.01317.05
8.0.20.0050.01317.40
8.0.10.0040.00417.13
8.0.00.0090.01316.67
7.4.330.0000.00516.67
7.4.320.0000.00616.51
7.4.300.0030.00316.44
7.4.290.0070.00016.60
7.4.280.0000.01016.48
7.4.270.0040.00416.45
7.4.260.0000.00716.44
7.4.250.0040.00416.35
7.4.240.0020.00516.54
7.4.230.0000.00816.60
7.4.220.0220.00316.70
7.4.210.0060.00816.67
7.4.200.0030.00416.71
7.4.160.0060.00916.47
7.4.150.0180.00317.40
7.4.140.0130.00617.86
7.4.130.0100.01016.44
7.4.120.0110.00716.41
7.4.110.0090.00616.64
7.4.100.0090.00916.59
7.4.90.0090.00916.61
7.4.80.0120.00619.39
7.4.70.0090.00916.54
7.4.60.0070.01016.35
7.4.50.0000.01816.61
7.4.40.0070.01016.55
7.4.30.0170.00416.37
7.4.00.0050.01115.01
7.3.330.0000.00613.23
7.3.320.0050.00013.24
7.3.310.0080.00016.40
7.3.300.0000.00616.41
7.3.290.0000.00716.23
7.3.280.0080.00916.34
7.3.270.0140.00417.40
7.3.260.0160.00616.62
7.3.250.0110.00816.29
7.3.240.0060.01116.39
7.3.230.0110.01116.39
7.3.210.0100.01016.27
7.3.200.0110.00619.39
7.3.190.0080.00816.43
7.3.180.0080.00816.40
7.3.170.0080.00816.30
7.3.160.0070.01016.40
7.3.120.0060.01214.85
7.3.110.0040.00914.63
7.3.100.0100.00014.88
7.3.90.0080.00314.77
7.3.80.0060.00614.77
7.3.70.0030.00714.54
7.3.60.0070.00714.52
7.3.50.0040.01214.68
7.3.40.0070.01114.44
7.3.30.0090.00614.65
7.3.20.0060.00616.69
7.3.10.0100.00316.70
7.3.00.0100.00616.64
7.2.330.0110.00616.79
7.2.320.0060.01116.37
7.2.310.0090.00916.86
7.2.300.0100.00716.79
7.2.290.0160.00616.67
7.2.250.0000.01614.94
7.2.240.0070.01414.93
7.2.230.0060.00614.88
7.2.220.0030.01014.98
7.2.210.0040.01114.99
7.2.200.0000.01814.82
7.2.190.0070.00714.71
7.2.180.0130.00615.00
7.2.170.0120.00615.06
7.2.60.0360.00816.51
7.2.50.0030.01016.88
7.1.330.0060.00615.81
7.1.320.0030.01115.86
7.1.310.0090.00315.65
7.1.300.0060.00815.83
7.1.290.0040.01115.52
7.1.280.0100.00715.64
7.1.270.0030.00715.31
7.1.260.0030.01315.81
7.1.200.0070.00215.82
7.1.70.0030.00817.18
7.1.60.0070.01719.18
7.1.50.0100.01016.96
7.1.00.0030.07722.51
7.0.200.0330.00316.38
7.0.60.0070.07721.59
7.0.50.0070.04317.86
7.0.40.0070.06720.02
7.0.30.0070.05020.23
7.0.20.0270.05320.12
7.0.10.0130.07320.22
7.0.00.0100.08020.06
5.6.280.0030.03320.86
5.6.210.0100.06720.61
5.6.200.0100.03318.12
5.6.190.0030.04720.41
5.6.180.0370.07320.48
5.6.170.0200.05020.53
5.6.160.0030.08720.54
5.6.150.0070.08018.29
5.6.140.0130.07718.21
5.6.130.0030.08318.29
5.6.120.0030.08321.03
5.6.110.0070.05020.98
5.6.100.0100.05721.12
5.6.90.0130.07721.02
5.6.80.0070.08720.39
5.5.350.0330.06720.46
5.5.340.0130.07018.02
5.5.330.0030.04020.29
5.5.320.0200.05020.24
5.5.310.0270.08020.43
5.5.300.0100.04018.03
5.5.290.0070.07017.98
5.5.280.0030.07020.84
5.5.270.0030.09020.89
5.5.260.0000.04320.72
5.5.250.0000.04720.79
5.5.240.0200.05020.19

preferences:
48.57 ms | 401 KiB | 5 Q