3v4l.org

run code in 300+ PHP versions simultaneously
<?php function password($len = 12) { $ret = ''; $chars = 'abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789'; $strlen = strlen($chars); $cutoff = floor(256 / $strlen) * $strlen; for (;;) { $byte = ord(openssl_random_pseudo_bytes(1)[0]); if ($byte >= $cutoff) { continue; } $ret .= $chars[$byte % $strlen]; if (strlen($ret) >= $len) { return $ret; } } } echo password();

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)
8.3.60.0110.01116.63
8.3.50.0090.00616.04
8.3.40.0070.00718.66
8.3.30.0090.00618.79
8.3.20.0040.00420.43
8.3.10.0100.00021.73
8.3.00.0050.00322.10
8.2.180.0050.01018.41
8.2.170.0120.00322.96
8.2.160.0060.01019.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00019.39
8.2.120.0040.00426.35
8.2.110.0030.00622.24
8.2.100.0050.00517.84
8.2.90.0030.00619.17
8.2.80.0040.00417.97
8.2.70.0000.01117.63
8.2.60.0030.00618.03
8.2.50.0030.00618.10
8.2.40.0070.00020.56
8.2.30.0030.00621.15
8.2.20.0030.00918.13
8.2.10.0000.00718.05
8.2.00.0000.00818.05
8.1.280.0070.01125.92
8.1.270.0000.00722.14
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0040.00719.29
8.1.230.0090.00319.18
8.1.220.0090.00017.77
8.1.210.0090.00018.77
8.1.200.0090.00017.25
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0040.00418.88
8.1.160.0040.00419.08
8.1.150.0040.00420.55
8.1.140.0000.00819.61
8.1.130.0030.00318.95
8.1.120.0000.00717.48
8.1.110.0040.00417.40
8.1.100.0000.00717.44
8.1.90.0060.00317.37
8.1.80.0040.00417.45
8.1.70.0040.00417.49
8.1.60.0070.00317.50
8.1.50.0000.00817.48
8.1.40.0080.00017.51
8.1.30.0030.00517.72
8.1.20.0040.00417.70
8.1.10.0060.00317.68
8.1.00.0000.00717.54
8.0.300.0000.00720.16
8.0.290.0040.00416.88
8.0.280.0070.00018.50
8.0.270.0030.00317.27
8.0.260.0000.00716.90
8.0.250.0030.00316.99
8.0.240.0000.00917.10
8.0.230.0030.00617.09
8.0.220.0030.00617.04
8.0.210.0020.00516.93
8.0.200.0030.00316.91
8.0.190.0030.00616.90
8.0.180.0000.00817.03
8.0.170.0040.00417.00
8.0.160.0080.00017.05
8.0.150.0040.00416.88
8.0.140.0030.00316.85
8.0.130.0040.00413.38
8.0.120.0050.00316.93
8.0.110.0000.00716.91
8.0.100.0080.00016.84
8.0.90.0000.00716.91
8.0.80.0120.00916.91
8.0.70.0060.00316.99
8.0.60.0000.00716.86
8.0.50.0070.00016.85
8.0.30.0080.01017.15
8.0.20.0080.01017.40
8.0.10.0040.00417.13
8.0.00.0100.00716.67
7.4.330.0000.00515.55
7.4.320.0000.00816.59
7.4.300.0000.00616.64
7.4.290.0040.00416.64
7.4.280.0040.00416.66
7.4.270.0000.00716.57
7.4.260.0030.00316.41
7.4.250.0000.00816.45
7.4.240.0040.00416.46
7.4.230.0040.00416.77
7.4.220.0130.01316.59
7.4.210.0110.00816.48
7.4.200.0040.00416.67
7.4.160.0080.00916.65
7.4.150.0000.01817.40
7.4.140.0080.01117.86
7.4.130.0150.00416.64
7.4.120.0070.01316.55
7.3.330.0000.00613.51
7.3.320.0030.00313.27
7.3.310.0040.00416.53
7.3.300.0060.00016.37
7.3.290.0040.01316.47
7.3.280.0090.00816.48
7.3.270.0090.00917.40
7.3.260.0110.00716.41
7.3.250.0090.00916.63
7.3.240.0080.01016.60
7.1.70.0040.01117.51

preferences:
46.87 ms | 400 KiB | 5 Q