3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Foo\Bar { class a {} class b {} function a() { var_dump(__FUNCTION__); } function b() { var_dump(__FUNCTION__); } const a = 1; const b = 2; } namespace PrePhp7 { use Foo\Bar\a; use Foo\Bar\b; use function Foo\Bar\a; use function Foo\Bar\b; use const Foo\Bar\a; use const Foo\Bar\b; echo "\n" . __NAMESPACE__ . "\n"; var_dump(new a()); var_dump(new b()); a(); b(); var_dump(a); var_dump(b); } namespace Php7 { use Foo\Bar\{a, b}; use function Foo\Bar\{a, b}; use const Foo\Bar\{a, b}; echo "\n" . __NAMESPACE__ . "\n"; var_dump(new a()); var_dump(new b()); a(); b(); var_dump(a); var_dump(b); } namespace Php7Mixed { use Foo\Bar\{a, b, function a, function b, const a, const b}; echo "\n" . __NAMESPACE__ . "\n"; var_dump(new a()); var_dump(new b()); a(); b(); var_dump(a); var_dump(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)
8.3.70.0080.00816.58
8.3.60.0080.00816.75
8.3.50.0120.00816.55
8.3.40.0150.00318.55
8.3.30.0160.00018.79
8.3.20.0050.00320.33
8.3.10.0040.00421.98
8.3.00.0040.00417.59
8.2.180.0150.00416.32
8.2.170.0040.01222.96
8.2.160.0080.00520.53
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00420.48
8.2.120.0040.00426.35
8.2.110.0070.00320.37
8.2.100.0120.00017.72
8.2.90.0060.00319.09
8.2.80.0050.00317.97
8.2.70.0030.00717.25
8.2.60.0000.00817.89
8.2.50.0080.00018.10
8.2.40.0030.00520.40
8.2.30.0080.00021.02
8.2.20.0040.00418.09
8.2.10.0070.00017.89
8.2.00.0040.00418.00
8.1.280.0040.01525.92
8.1.270.0040.00423.96
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.98
8.1.230.0070.00419.00
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00717.13
8.1.190.0000.00817.22
8.1.180.0070.00018.10
8.1.170.0000.00818.71
8.1.160.0000.00719.02
8.1.150.0050.00220.53
8.1.140.0000.00819.58
8.1.130.0030.00318.89
8.1.120.0050.00317.39
8.1.110.0080.00017.41
8.1.100.0030.00517.34
8.1.90.0040.00417.38
8.1.80.0040.00417.42
8.1.70.0030.00317.38
8.1.60.0060.00317.53
8.1.50.0000.00817.46
8.1.40.0080.00017.48
8.1.30.0070.00317.63
8.1.20.0030.00517.51
8.1.10.0030.00517.41
8.1.00.0000.00817.36
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0070.00018.46
8.0.270.0040.00417.27
8.0.260.0030.00316.84
8.0.250.0060.00017.00
8.0.240.0090.00016.96
8.0.230.0030.00316.94
8.0.220.0070.00016.89
8.0.210.0070.00016.86
8.0.200.0000.00916.80
8.0.190.0060.00316.91
8.0.180.0030.00516.84
8.0.170.0050.00216.89
8.0.160.0040.00416.91
8.0.150.0000.00716.82
8.0.140.0000.00716.82
8.0.130.0000.00513.32
8.0.120.0040.00416.74
8.0.110.0000.00716.73
8.0.100.0040.00416.83
8.0.90.0000.00716.68
8.0.80.0080.00916.78
8.0.70.0000.00716.72
8.0.60.0040.00416.71
8.0.50.0040.00416.67
8.0.30.0080.00816.97
8.0.20.0070.01317.40
8.0.10.0090.00016.97
8.0.00.0070.01016.80
7.4.330.0000.00515.55
7.4.320.0070.00016.49
7.4.300.0060.00016.36
7.4.290.0030.00616.40
7.4.280.0000.00716.53
7.4.270.0040.00416.47
7.4.260.0030.00616.34
7.4.250.0040.00416.49
7.4.240.0040.00416.56
7.4.230.0000.00716.34
7.4.220.0130.01316.63
7.4.210.0070.00716.45
7.4.200.0070.00016.59
7.4.160.0090.00916.31
7.4.150.0070.01317.40
7.4.140.0120.00717.86
7.4.130.0130.00616.56
7.4.120.0160.00516.39
7.4.110.0130.01016.60
7.4.100.0070.01016.39
7.4.90.0040.01416.52
7.4.80.0100.01019.39
7.4.70.0120.00616.24
7.4.60.0070.01016.45
7.4.50.0000.01416.37
7.4.40.0110.00616.59
7.4.30.0060.01116.55
7.4.00.0030.01314.80
7.3.330.0050.00013.04
7.3.320.0030.00313.12
7.3.310.0000.00716.27
7.3.300.0040.00416.27
7.3.290.0070.01116.29
7.3.280.0090.01016.22
7.3.270.0120.01217.40
7.3.260.0170.00516.35
7.3.250.0130.00616.33
7.3.240.0060.01116.52
7.3.230.0080.00916.43
7.3.210.0140.00716.54
7.3.200.0030.01316.43
7.3.190.0070.01116.40
7.3.180.0030.01316.36
7.3.170.0030.01416.45
7.3.160.0080.00816.57
7.2.330.0110.00616.59
7.2.320.0140.00516.63
7.2.310.0080.00816.83
7.2.300.0090.00916.52
7.2.290.0110.00616.80
7.2.60.0120.00316.73
7.2.00.0060.00619.42
7.1.200.0070.00715.76
7.1.100.0040.00817.84
7.1.70.0040.01216.88
7.1.60.0240.01734.82
7.1.50.0190.00934.44
7.1.40.0190.01534.44
7.1.30.0200.01634.36
7.1.20.0140.01434.64
7.1.10.0060.00916.35
7.1.00.0100.00916.50
7.0.200.0040.01116.86
7.0.190.0070.00616.61
7.0.180.0070.01016.40
7.0.170.0130.00316.18
7.0.160.0070.00716.24
7.0.150.0090.00616.16
7.0.140.0080.01016.43
7.0.130.0090.00916.51
7.0.120.0040.01216.54
7.0.110.0060.01216.29
7.0.100.0080.00816.21
7.0.90.0110.00616.38
7.0.80.0070.01116.43
7.0.70.0030.01316.05
7.0.60.0050.01316.07
7.0.50.0040.01216.23
7.0.40.0030.01216.43
7.0.30.0000.01616.42
7.0.20.0080.00816.30
7.0.10.0100.01316.29
7.0.00.0100.00816.25

preferences:
102.44 ms | 401 KiB | 5 Q