3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($foo = 'foo', $bar) {} function str($value) { return $value === true ? 'true' : ($value === false ? 'false' : ($value === null ? 'null' : '' . $value)); } function dump_function($fn) { $rf = new ReflectionFunction($fn); $fmt = "%-10s %-5s %-5s %s\n"; vprintf($fmt, array('name', 'opt?', 'def?', 'value')); foreach ($rf->getParameters() as $param) { $p = $param; $dv = $p->isDefaultValueAvailable() ? str($p->getDefaultValue()) : '-'; printf($fmt, $param->getName(), str($p->isOptional()), str($p->isDefaultValueAvailable()), $dv); } } dump_function('foo');

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)
8.4.140.0160.00917.77
8.4.130.0100.01118.99
8.4.120.0080.00324.36
8.4.110.0100.00718.69
8.4.100.0060.00317.85
8.4.90.0130.00920.63
8.4.80.0030.00518.66
8.4.70.0080.01218.53
8.4.60.0090.01118.98
8.4.50.0110.00818.78
8.4.40.0050.00317.63
8.4.30.0110.00718.82
8.4.20.0070.01419.72
8.4.10.0090.00019.27
8.3.270.0150.00816.65
8.3.260.0090.00716.80
8.3.250.0100.00718.91
8.3.240.0090.00717.25
8.3.230.0030.00616.81
8.3.220.0100.01019.04
8.3.210.0120.00818.69
8.3.200.0060.00316.68
8.3.190.0110.00817.05
8.3.180.0100.00918.42
8.3.170.0040.00418.97
8.3.160.0120.00616.81
8.3.150.0180.00018.95
8.3.140.0100.00718.66
8.3.130.0000.00916.68
8.3.120.0030.00620.97
8.3.110.0040.00420.94
8.3.100.0040.00424.06
8.3.90.0090.00026.77
8.3.80.0320.01030.84
8.3.70.0400.00930.84
8.3.60.0420.00930.84
8.3.50.0150.00730.84
8.3.40.0300.00830.84
8.3.30.0290.00330.84
8.3.20.0250.00630.84
8.3.10.0200.01030.84
8.3.00.0240.00930.84
8.2.290.0120.00720.66
8.2.280.0100.00518.27
8.2.270.0060.01217.29
8.2.260.0150.00316.73
8.2.250.0000.00516.98
8.2.240.0000.01518.83
8.2.230.0040.00422.58
8.2.220.0030.00737.54
8.2.210.0040.00426.77
8.2.200.0210.01030.84
8.2.190.0230.00630.84
8.2.180.0190.00730.84
8.2.170.0240.00530.84
8.2.160.0270.00430.84
8.2.150.0240.00430.84
8.2.140.0270.00730.84
8.2.130.0260.00330.84
8.2.120.0270.00330.84
8.2.110.0290.00730.84
8.2.100.0160.00930.84
8.2.90.0240.00530.84
8.2.80.0220.00730.84
8.2.70.0220.01030.84
8.2.60.0300.00530.84
8.2.50.0360.00630.84
8.2.40.0220.01030.84
8.2.30.0270.00730.84
8.2.20.0270.00530.84
8.2.10.0270.00830.84
8.2.00.0220.00830.84
8.1.330.0110.00822.05
8.1.320.0110.00817.78
8.1.310.0000.00815.95
8.1.300.0030.00620.42
8.1.290.0250.00630.84
8.1.280.0260.00530.84
8.1.270.0290.00630.84
8.1.260.0250.00530.84
8.1.250.0200.00730.84
8.1.240.0210.00430.84
8.1.230.0160.00830.84
8.1.220.0200.00630.84
8.1.210.0260.00430.84
8.1.200.0190.00730.84
8.1.190.0220.00430.84
8.1.180.0210.00530.84
8.1.170.0200.01030.84
8.1.160.0220.00530.84
8.1.150.0240.00330.84
8.1.140.0230.00630.84
8.1.130.0240.00630.84
8.1.120.0200.00930.84
8.1.110.0220.00630.84
8.1.100.0230.01230.84
8.1.90.0240.01030.84
8.1.80.0230.00730.84
8.1.70.0330.00230.84
8.1.60.0310.01130.84
8.1.50.0310.00630.84
8.1.40.0330.00630.84
8.1.30.0250.00830.84
8.1.20.0260.00930.84
8.1.10.0290.00730.84
8.1.00.0240.00530.84
8.0.300.0170.00330.84
8.0.290.0170.00030.84
8.0.280.0130.00430.84
8.0.270.0190.00430.84
8.0.260.0350.01230.84
8.0.250.0290.00030.84
8.0.240.0220.00330.84
8.0.230.0240.00730.84
8.0.220.0270.00630.84
8.0.210.0220.00730.84
8.0.200.0150.00930.84
8.0.190.0230.01130.84
8.0.180.0310.00330.84
8.0.170.0300.00330.84
8.0.160.0260.00330.84
8.0.150.0290.00730.84
8.0.140.0290.00830.84
8.0.130.0310.00630.84
8.0.120.0350.00330.84
8.0.110.0230.00330.84
8.0.100.0220.00030.84
8.0.90.0170.00030.84
8.0.80.0180.00030.84
8.0.70.0220.00630.84
8.0.60.0210.00930.84
8.0.50.0240.00730.84
8.0.30.0300.01330.84
8.0.20.0300.00430.84
8.0.10.0270.00630.84
8.0.00.0290.00930.84
7.4.330.0220.01130.84
7.4.320.0250.01430.84
7.4.300.0340.00430.84
7.4.290.0250.01130.84
7.4.280.0240.01030.84
7.4.270.0250.01230.84
7.4.260.0300.00330.84
7.4.250.0210.00830.84
7.4.240.0260.00030.84
7.4.230.0220.00430.84
7.4.220.0210.00630.84
7.4.210.0210.00630.84
7.4.200.0180.01130.84
7.4.190.0200.01430.84
7.4.180.0260.00930.84
7.4.160.0280.00330.84
7.4.150.0280.00030.84
7.4.140.0310.00330.84
7.4.130.0220.01130.84
7.4.120.0390.00830.84
7.4.110.0310.01030.84
7.4.100.0240.01030.84
7.4.90.0220.00930.84
7.4.80.0270.00730.84
7.4.70.0230.01030.84
7.4.60.0170.00430.84
7.4.50.0120.00330.84
7.4.40.0060.00930.84
7.4.30.0150.00030.84
7.4.20.0120.00330.84
7.4.10.0050.01030.84
7.4.00.0120.00430.84
7.3.330.0180.00330.84
7.3.320.0110.00630.84
7.3.310.0120.00330.84
7.3.300.0040.01130.84
7.3.290.0040.01130.84
7.3.280.0150.00030.84
7.3.270.0090.00630.84
7.3.260.0150.00030.84
7.3.250.0150.00030.84
7.3.240.0150.00030.84
7.3.230.0210.01130.84
7.3.220.0110.01130.84
7.3.210.0190.01130.84
7.3.200.0230.01130.84
7.3.190.0260.00730.84
7.3.180.0270.00430.84
7.3.170.0290.00030.84
7.3.160.0190.01130.84
7.3.150.0220.00530.84
7.3.140.0160.01230.84
7.3.130.0120.00330.84
7.3.120.0080.00830.84
7.3.110.0120.00430.84
7.3.100.0150.00430.84
7.3.90.0130.00230.84
7.3.80.0100.00630.84
7.3.70.0130.00430.84
7.3.60.0110.00530.84
7.3.50.0180.00030.84
7.3.40.0130.00630.84
7.3.30.0160.00030.84
7.3.20.0160.00330.84
7.3.10.0130.00430.84
7.3.00.0190.00030.84
7.2.340.0110.00630.84
7.2.330.0170.00030.84
7.2.320.0140.00230.84
7.2.310.0160.00030.84
7.2.300.0070.01030.84
7.2.290.0120.00730.84
7.2.280.0160.00030.84
7.2.270.0160.00430.84
7.2.260.0170.00330.84
7.2.250.0200.00030.84
7.2.240.0110.00630.84
7.2.230.0130.00330.84
7.2.220.0140.00730.84
7.2.210.0160.00330.84
7.2.200.0180.00030.84
7.2.190.0100.00730.84
7.2.180.0160.00030.84
7.2.170.0130.00430.84
7.2.160.0170.00030.84
7.2.150.0110.00930.84
7.2.140.0150.00730.84
7.2.130.0200.00030.84
7.2.120.0150.00330.84
7.2.110.0140.00430.84
7.2.100.0120.00630.84
7.2.90.0150.00330.84
7.2.80.0170.00330.84
7.2.70.0140.00630.84
7.2.60.0110.00730.84
7.2.50.0160.00330.84
7.2.40.0180.00030.84
7.2.30.0090.00930.84
7.2.20.0140.00330.84
7.2.10.0180.00030.84
7.2.00.0140.00530.84
7.1.330.0140.00530.84
7.1.320.0150.00530.84
7.1.310.0130.00630.84
7.1.300.0120.00430.84
7.1.290.0120.00430.84
7.1.280.0160.00330.84
7.1.270.0130.00530.84
7.1.260.0160.00030.84
7.1.250.0170.00030.84
7.1.240.0190.00030.84
7.1.230.0060.01130.84
7.1.220.0120.00430.84
7.1.210.0130.00430.84
7.1.200.0120.00430.84
7.1.190.0130.00530.84
7.1.180.0120.00330.84
7.1.170.0130.00330.84
7.1.160.0130.00430.84
7.1.150.0210.00030.84
7.1.140.0150.00230.84
7.1.130.0130.00830.84
7.1.120.0170.00030.84
7.1.110.0130.00430.84
7.1.100.0100.00730.84
7.1.90.0140.00330.84
7.1.80.0170.00030.84
7.1.70.0140.00530.84
7.1.60.0120.00630.84
7.1.50.0170.00030.84
7.1.40.0150.00030.84
7.1.30.0140.00330.84
7.1.20.0120.00930.84
7.1.10.0190.00030.84
7.1.00.0180.00030.84
7.0.330.0180.00030.84
7.0.320.0120.00430.84
7.0.310.0140.00330.84
7.0.300.0130.00430.84
7.0.290.0180.00030.84
7.0.280.0200.00330.84
7.0.270.0160.00430.84
7.0.260.0180.00030.84
7.0.250.0160.00030.84
7.0.240.0070.00730.84
7.0.230.0140.00330.84
7.0.220.0140.00230.84
7.0.210.0150.00430.84
7.0.200.0160.00030.84
7.0.190.0130.00330.84
7.0.180.0180.00030.84
7.0.170.0130.00530.84
7.0.160.0120.00630.84
7.0.150.0130.00330.84
7.0.140.0120.00430.84
7.0.130.0150.00430.84
7.0.120.0120.00830.84
7.0.110.0130.00430.84
7.0.100.0120.00530.84
7.0.90.0170.00030.84
7.0.80.0150.00330.84
7.0.70.0180.00030.84
7.0.60.0160.00030.84
7.0.50.0130.00530.84
7.0.40.0190.00030.84
7.0.30.0100.00530.84
7.0.20.0120.00630.84
7.0.10.0150.00330.84
7.0.00.0090.00930.84
5.6.400.0140.00330.84
5.6.390.0110.00330.84
5.6.380.0140.00030.84
5.6.370.0100.00530.84
5.6.360.0120.00330.84
5.6.350.0090.00630.84
5.6.340.0060.00930.84
5.6.330.0150.00030.84
5.6.320.0150.00030.84
5.6.310.0050.01030.84
5.6.300.0110.00630.84
5.6.290.0110.00630.84
5.6.280.0120.00330.84
5.6.270.0110.00330.84
5.6.260.0190.00030.84
5.6.250.0090.00630.84
5.6.240.0120.00430.84
5.6.230.0090.00630.84
5.6.220.0100.00530.84
5.6.210.0120.00230.84
5.6.200.0070.01030.84
5.6.190.0090.00630.84
5.6.180.0100.00530.84
5.6.170.0130.00430.84
5.6.160.0120.00330.84
5.6.150.0120.00430.84
5.6.140.0120.00330.84
5.6.130.0130.00330.84
5.6.120.0160.00030.84
5.6.110.0150.00030.84
5.6.100.0070.00730.84
5.6.90.0080.00830.84
5.6.80.0180.00030.84
5.6.70.0160.00030.84
5.6.60.0100.00530.84
5.6.50.0050.00930.84
5.6.40.0100.00330.84
5.6.30.0080.00530.84
5.6.20.0160.00030.84
5.6.10.0070.00730.84
5.6.00.0120.00230.84
5.5.380.0140.00230.84
5.5.370.0180.00030.84
5.5.360.0130.00330.84
5.5.350.0110.00330.84
5.5.340.0140.00330.84
5.5.330.0120.00330.84
5.5.320.0160.00030.84
5.5.310.0150.00030.84
5.5.300.0100.00730.84
5.5.290.0120.00330.84
5.5.280.0130.00330.84
5.5.270.0150.00330.84
5.5.260.0140.00230.84
5.5.250.0070.00730.84
5.5.240.0110.00330.84
5.5.230.0110.00330.84
5.5.220.0090.00430.84
5.5.210.0090.00430.84
5.5.200.0100.00330.84
5.5.190.0100.00330.84
5.5.180.0130.00030.84
5.5.170.0100.00330.84
5.5.160.0080.00630.84
5.5.150.0070.00730.84
5.5.140.0120.00330.84
5.5.130.0160.00030.84
5.5.120.0160.00030.84
5.5.110.0130.00430.84
5.5.100.0140.00230.84
5.5.90.0140.00030.84
5.5.80.0130.00030.84
5.5.70.0090.00330.84
5.5.60.0040.00930.84
5.5.50.0080.00430.84
5.5.40.0110.00430.84
5.5.30.0130.00030.84
5.5.20.0040.00830.84
5.5.10.0070.00730.84
5.5.00.0120.00230.84
5.4.450.0070.00430.84
5.4.440.0100.00530.84
5.4.430.0030.00730.84
5.4.420.0070.00430.84
5.4.410.0120.00430.84
5.4.400.0040.00730.84
5.4.390.0100.00030.84
5.4.380.0100.00030.84
5.4.370.0060.00430.84
5.4.360.0050.00530.84
5.4.350.0050.00530.84
5.4.340.0190.00430.84
5.4.330.0230.00430.84
5.4.320.0060.00630.84
5.4.310.0060.00630.84
5.4.300.0090.00330.84
5.4.290.0090.00330.84
5.4.280.0130.00030.84
5.4.270.0080.00430.84
5.4.260.0110.00030.84
5.4.250.0080.00330.84
5.4.240.0100.00030.84
5.4.230.0080.00330.84
5.4.220.0070.00230.84
5.4.210.0070.00330.84
5.4.200.0050.00530.84
5.4.190.0100.00030.84
5.4.180.0080.00230.84
5.4.170.0100.00030.84
5.4.160.0100.00030.84
5.4.150.0050.00530.84
5.4.140.0070.00430.84
5.4.130.0070.00730.84
5.4.120.0080.00530.84
5.4.110.0120.00030.84
5.4.100.0070.00730.84
5.4.90.0110.00430.84
5.4.80.0050.00530.84
5.4.70.0050.00530.84
5.4.60.0070.00230.84
5.4.50.0070.00330.84
5.4.40.0050.00530.84
5.4.30.0100.00030.84
5.4.20.0100.00030.84
5.4.10.0050.00530.84
5.4.00.0100.00030.84
5.3.290.0100.00030.84
5.3.280.0100.00030.84
5.3.270.0070.00330.84
5.3.260.0110.00030.84
5.3.250.0110.00030.84
5.3.240.0080.00430.84
5.3.230.0110.00030.84
5.3.220.0120.00030.84
5.3.210.0080.00330.84
5.3.200.0030.00730.84
5.3.190.0070.00330.84
5.3.180.0100.00030.84
5.3.170.0070.00330.84
5.3.160.0180.00030.84
5.3.150.0050.00530.84
5.3.140.0110.00730.84
5.3.130.0160.00330.84
5.3.120.0080.00230.84
5.3.110.0100.00330.84
5.3.100.0190.00030.84
5.3.90.0100.00030.84
5.3.80.0000.01030.84
5.3.70.0190.00630.84
5.3.60.0070.00430.84
5.3.50.0110.00730.84
5.3.40.0180.00430.84
5.3.30.0070.00230.84
5.3.20.0150.00430.84
5.3.10.0050.00530.84
5.3.00.0200.00630.84
5.2.170.0110.01130.84
5.2.160.0070.00230.84
5.2.150.0100.00030.84
5.2.140.0080.00330.84
5.2.130.0060.00330.84
5.2.120.0050.00530.84
5.2.110.0070.00430.84
5.2.100.0050.00530.84
5.2.90.0090.00030.84
5.2.80.0060.00230.84
5.2.70.0080.00030.84
5.2.60.0060.00630.84
5.2.50.0090.00030.84
5.2.40.0080.00030.84
5.2.30.0040.00430.84
5.2.20.0080.00030.84
5.2.10.0050.00330.84
5.2.00.0080.00030.84
5.1.60.0070.00030.84
5.1.50.0000.00730.84
5.1.40.0000.00730.84
5.1.30.0070.00030.84
5.1.20.0050.00230.84
5.1.10.0050.00230.84
5.1.00.0070.00030.84
5.0.50.0000.00630.84
5.0.40.0060.00030.84
5.0.30.0060.00030.84
5.0.20.0060.00030.84
5.0.10.0060.00030.84
5.0.00.0040.00230.84
4.4.90.0030.00030.84
4.4.80.0040.00030.84
4.4.70.0030.00030.84
4.4.60.0000.00430.84
4.4.50.0000.00430.84
4.4.40.0040.00030.84
4.4.30.0040.00030.84
4.4.20.0040.00030.84
4.4.10.0020.00230.84
4.4.00.0040.00030.84
4.3.110.0040.00030.84
4.3.100.0000.00430.84
4.3.90.0000.00430.84
4.3.80.0040.00030.84
4.3.70.0000.00430.84
4.3.60.0030.00030.84
4.3.50.0000.00330.84
4.3.40.0000.00330.84
4.3.30.0000.00330.84
4.3.20.0000.00330.84
4.3.10.0000.00330.84
4.3.00.0030.00030.84

preferences:
101.47 ms | 403 KiB | 5 Q