3v4l.org

run code in 300+ PHP versions simultaneously
<?php function generateRandomString($length = 10) { $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } return $randomString; } for($i = 0; $i < 2000; $i++): echo generateRandomString(8) . PHP_EOL; endfor;

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)
7.1.70.0100.01617.17
7.1.60.0100.02017.36
7.1.50.0030.01317.12
7.1.40.0080.00816.77
7.1.30.0100.01316.55
7.1.20.0130.01316.73
7.1.10.0030.02216.48
7.1.00.0000.02116.59
7.0.200.0080.00316.95
7.0.190.0000.01216.85
7.0.180.0060.00916.33
7.0.170.0040.00716.13
7.0.160.0110.00316.54
7.0.150.0070.02116.35
7.0.140.0000.01316.45
7.0.130.0030.01216.54
7.0.120.0100.01416.57
7.0.110.0070.00316.40
7.0.100.0030.01716.40
7.0.90.0060.01216.40
7.0.80.0060.00616.40
7.0.70.0080.00316.40
7.0.60.0050.00516.40
7.0.50.0080.00316.47
7.0.40.0030.00816.40
7.0.30.0040.00716.40
7.0.20.0040.00716.40
7.0.10.0110.01416.40
7.0.00.0090.00916.40
5.6.300.0030.06020.89
5.6.290.0030.04820.74
5.6.280.0070.05520.79
5.6.270.0130.08620.97
5.6.260.0070.07220.95
5.6.250.0140.08521.02
5.6.240.0000.05520.96
5.6.230.0070.04720.96
5.6.220.0100.04720.77
5.6.210.0000.05420.98
5.6.200.0100.04221.02
5.6.190.0030.08420.93
5.6.180.0030.04520.84
5.6.170.0000.05321.01
5.6.160.0030.05420.91
5.6.150.0070.04520.95
5.6.140.0070.04920.95
5.6.130.0030.06420.82
5.6.120.0100.04220.82
5.6.110.0100.04220.87
5.6.100.0030.05020.82
5.6.90.0000.05820.94
5.6.80.0130.03420.11
5.6.70.0000.05220.17
5.6.60.0030.05620.20
5.6.50.0070.05020.24
5.6.40.0100.08520.29
5.6.30.0070.04320.32
5.6.20.0070.04420.21
5.6.10.0090.03820.21
5.6.00.0070.04420.29
5.5.380.0100.03917.67
5.5.370.0100.05817.63
5.5.360.0070.05017.63
5.5.350.0100.04617.47
5.5.340.0070.04718.09
5.5.330.0060.04218.04
5.5.320.0070.05818.08
5.5.310.0000.04917.72
5.5.300.0130.03718.09
5.5.290.0000.05618.07
5.5.280.0000.06518.09
5.5.270.0160.04517.82
5.5.260.0070.04918.08
5.5.250.0070.05517.65
5.5.240.0070.04617.08
5.5.230.0030.04717.36
5.5.220.0070.07117.38
5.5.210.0060.04717.38
5.5.200.0000.04917.43
5.5.190.0030.06117.44
5.5.180.0070.04917.35
5.5.160.0030.04917.40
5.5.150.0100.04217.04
5.5.140.0090.04417.19
5.5.130.0130.06517.44
5.5.120.0100.04017.09
5.5.110.0030.04717.33
5.5.100.0030.04717.29
5.5.90.0030.04517.11
5.5.80.0100.04117.32
5.5.70.0030.04717.09
5.5.60.0100.04017.24
5.5.50.0030.04916.97
5.5.40.0230.04217.32
5.5.30.0000.04617.25
5.5.20.0070.04317.28
5.5.10.0100.04117.27
5.5.00.0030.05317.37
5.4.450.0100.04319.38
5.4.440.0030.05119.38
5.4.430.0100.04319.51
5.4.420.0070.04219.40
5.4.410.0130.04019.38
5.4.400.0060.05819.07
5.4.390.0070.04019.21
5.4.380.0070.04919.14
5.4.370.0140.04818.96
5.4.360.0060.04418.99
5.4.350.0070.04419.20
5.4.340.0070.05319.20
5.4.320.0070.04719.18
5.4.310.0070.04918.98
5.4.300.0160.03919.05
5.4.290.0040.04218.91
5.4.280.0000.07419.01
5.4.270.0090.04119.06
5.4.260.0060.04119.21
5.4.250.0100.04019.04
5.4.240.0030.04518.90
5.4.230.0100.04018.93
5.4.220.0100.03718.88
5.4.210.0100.03919.18
5.4.200.0100.03619.05
5.4.190.0170.03719.12
5.4.180.0100.04718.90
5.4.170.0000.05118.86
5.4.160.0030.04419.19
5.4.150.0030.04619.20
5.4.140.0130.05616.72
5.4.130.0070.03816.57
5.4.120.0100.03716.74
5.4.110.0070.04016.52
5.4.100.0030.04016.72
5.4.90.0070.03916.72
5.4.80.0030.05216.70
5.4.70.0090.03516.52
5.4.60.0030.05216.70
5.4.50.0000.04716.52
5.4.40.0070.03916.75
5.4.30.0000.04316.52
5.4.20.0030.04516.52
5.4.10.0030.04916.71
5.4.00.0030.03916.52
5.3.290.0070.04316.52
5.3.280.0000.06916.52
5.3.270.0070.07316.52
5.3.260.0100.05216.52
5.3.250.0210.03816.52
5.3.240.0100.08216.52
5.3.230.0070.05016.52
5.3.220.0070.04016.52
5.3.210.0100.04216.52
5.3.200.0070.05716.52
5.3.190.0030.04416.52
5.3.180.0030.06016.52
5.3.170.0000.04716.52
5.3.160.0000.05016.52
5.3.150.0030.06016.52
5.3.140.0030.04816.52
5.3.130.0000.05416.52
5.3.120.0040.04616.52
5.3.110.0030.04416.52
5.3.100.0030.04316.52
5.3.90.0070.03816.52
5.3.80.0100.03516.52
5.3.70.0060.03816.52
5.3.60.0060.04116.52
5.3.50.0000.04916.52
5.3.40.0100.03616.52
5.3.30.0030.04016.52
5.3.20.0000.04416.52
5.3.10.0160.03216.52
5.3.00.0000.04416.52

preferences:
33.8 ms | 400 KiB | 5 Q