3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &id(&$var) { return $var; } function ref() { $a = 1; return $a; } // oops, missing & var_dump(id(ref()));

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)
8.5.30.0040.00319.46
8.5.20.0080.00919.56
8.5.10.0120.00616.82
8.5.00.0090.01119.91
8.4.180.0130.00819.31
8.4.170.0090.01220.45
8.4.160.0140.00723.65
8.4.150.0070.00416.89
8.4.140.0110.01117.86
8.4.130.0130.00818.71
8.4.120.0120.00823.94
8.4.110.0120.00822.14
8.4.100.0120.00718.78
8.4.90.0110.01020.62
8.4.80.0040.00718.46
8.4.70.0110.00918.98
8.4.60.0120.00818.88
8.4.50.0070.00618.37
8.4.40.0120.00417.29
8.4.30.0100.01020.52
8.4.20.0070.00418.90
8.4.10.0030.00617.69
8.3.300.0140.00920.82
8.3.290.0110.00820.69
8.3.280.0120.00918.25
8.3.270.0110.00916.47
8.3.260.0100.00616.55
8.3.250.0090.00918.84
8.3.240.0120.00417.29
8.3.230.0100.00616.47
8.3.220.0100.00818.76
8.3.210.0100.00616.74
8.3.200.0040.00416.48
8.3.190.0090.00917.00
8.3.180.0100.00716.99
8.3.170.0040.01220.65
8.3.160.0110.00716.62
8.3.150.0100.00617.15
8.3.140.0110.00716.96
8.3.130.0070.01016.91
8.3.120.0060.00320.69
8.3.110.0080.01120.94
8.3.100.0040.00424.06
8.3.90.0030.00626.77
8.3.80.0030.00619.36
8.3.70.0090.00616.75
8.3.60.0070.01516.75
8.3.50.0130.00318.19
8.3.40.0130.00618.85
8.3.30.0040.01118.69
8.3.20.0080.00024.18
8.3.10.0000.00824.66
8.3.00.0030.00526.16
8.2.300.0120.00822.01
8.2.290.0070.00220.08
8.2.280.0120.00718.25
8.2.270.0110.00717.43
8.2.260.0150.00316.40
8.2.250.0040.00418.45
8.2.240.0030.00718.96
8.2.230.0160.00322.58
8.2.220.0000.00937.54
8.2.210.0100.00326.77
8.2.200.0060.00318.88
8.2.190.0110.00716.58
8.2.180.0070.00725.92
8.2.170.0060.01218.82
8.2.160.0090.00622.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00426.16
8.2.110.0030.00619.12
8.2.100.0080.00417.91
8.2.90.0000.00919.21
8.2.80.0000.01017.97
8.2.70.0000.00817.50
8.2.60.0040.00417.80
8.2.50.0000.00718.07
8.2.40.0040.00418.03
8.2.30.0000.00717.87
8.2.20.0060.00319.89
8.2.10.0040.00421.02
8.2.00.0000.00719.18
8.1.340.0100.00919.43
8.1.330.0060.01022.05
8.1.320.0100.00816.22
8.1.310.0060.01215.91
8.1.300.0000.00918.10
8.1.290.0060.00330.84
8.1.280.0100.00725.92
8.1.270.0000.00723.99
8.1.260.0100.00526.35
8.1.250.0040.00428.09
8.1.240.0100.01022.62
8.1.230.0070.00417.77
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0040.00417.23
8.1.190.0040.00417.23
8.1.180.0060.00318.10
8.1.170.0030.00618.52
8.1.160.0000.00818.74
8.1.150.0080.00018.79
8.1.140.0050.00218.97
8.1.130.0070.00021.84
8.1.120.0030.00617.42
8.1.110.0050.00317.40
8.1.100.0040.00417.40
8.1.90.0000.00817.37
8.1.80.0100.00017.37
8.1.70.0030.00317.27
8.1.60.0000.00917.51
8.1.50.0030.00617.36
8.1.40.0030.00617.48
8.1.30.0040.00417.65
8.1.20.0030.00617.67
8.1.10.0100.00017.41
8.1.00.0080.00017.46
8.0.300.0070.00018.77
8.0.290.0080.00016.61
8.0.280.0000.00718.23
8.0.270.0000.00818.01
8.0.260.0040.00418.56
8.0.250.0000.00817.03
8.0.240.0000.00816.84
8.0.230.0050.00316.87
8.0.220.0070.00016.77
8.0.210.0030.00316.75
8.0.200.0000.00716.94
8.0.190.0040.00417.00
8.0.180.0040.00416.82
8.0.170.0050.00516.95
8.0.160.0060.00316.85
8.0.150.0040.00416.81
8.0.140.0110.00016.87
8.0.130.0050.00013.30
8.0.120.0030.00516.79
8.0.110.0030.00516.89
8.0.100.0070.00016.73
8.0.90.0030.00516.86
8.0.80.0140.01016.87
8.0.70.0120.01116.92
8.0.60.0140.01116.80
8.0.50.0210.00416.88
8.0.30.0200.00616.88
8.0.20.0050.02317.00
8.0.10.0080.01516.96
8.0.00.0170.00617.06
7.4.330.0050.00016.80
7.4.320.0030.00316.53
7.4.300.0060.00016.43
7.4.290.0070.00016.45
7.4.280.0000.00816.54
7.4.270.0000.00616.59
7.4.260.0030.00313.23
7.4.250.0000.00716.56
7.4.240.0020.00516.58
7.4.230.0000.00716.36
7.4.220.0000.00716.60
7.4.210.0060.00916.45
7.4.200.0110.01416.47
7.4.190.0140.01116.73
7.4.180.0040.01716.66
7.4.160.0100.01016.54
7.4.150.0080.01216.71
7.4.140.0040.01616.41
7.4.130.0160.00316.57
7.4.120.0040.01616.49
7.4.110.0170.00316.38
7.4.100.0120.00616.40
7.4.90.0060.01316.45
7.4.80.0060.01216.57
7.4.70.0140.00616.42
7.4.60.0070.01016.55
7.4.50.0070.01216.23
7.4.40.0130.00616.38
7.4.30.0150.00516.32
7.4.20.0130.00716.54
7.4.10.0080.01316.44
7.4.00.0000.01916.49
7.3.330.0030.00316.37
7.3.320.0030.00413.43
7.3.310.0000.00716.34
7.3.300.0070.00016.23
7.3.290.0030.01816.37
7.3.280.0060.01516.32
7.3.270.0090.01216.32
7.3.260.0100.00816.36
7.3.250.0100.01016.32
7.3.240.0070.00816.37
7.3.230.0050.01016.42
7.3.220.0080.00816.29
7.3.210.0080.01316.21
7.3.200.0130.00816.23
7.3.190.0160.00616.25
7.3.180.0080.01116.29
7.3.170.0100.00716.24
7.3.160.0180.00516.30
7.3.150.0100.00716.29
7.3.140.0120.00416.21
7.3.130.0110.01016.28
7.3.120.0150.00616.21
7.3.110.0040.02116.24
7.3.100.0060.01216.14
7.3.90.0070.01116.61
7.3.80.0080.01216.32
7.3.70.0140.00616.36
7.3.60.0090.01216.36
7.3.50.0210.00016.36
7.3.40.0100.01016.38
7.3.30.0030.01616.38
7.3.20.0090.01116.41
7.3.10.0170.00316.34
7.3.00.0090.01216.36

preferences:
56.65 ms | 1384 KiB | 5 Q