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; } echo $strlen; echo ($byte % $strlen).PHP_EOL; $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)
8.3.60.0160.00616.62
8.3.50.0070.00716.28
8.3.40.0070.00718.88
8.3.30.0120.00318.82
8.3.20.0070.00020.27
8.3.10.0070.00321.85
8.3.00.0070.00022.21
8.2.180.0060.00916.88
8.2.170.0110.00422.96
8.2.160.0140.00018.93
8.2.150.0060.00324.18
8.2.140.0080.00024.66
8.2.130.0050.00320.98
8.2.120.0000.00826.35
8.2.110.0030.00919.33
8.2.100.0080.00417.84
8.2.90.0090.00019.22
8.2.80.0080.00018.16
8.2.70.0130.00017.38
8.2.60.0060.00317.93
8.2.50.0040.00418.10
8.2.40.0030.00620.72
8.2.30.0040.00421.15
8.2.20.0030.00718.04
8.2.10.0000.00818.20
8.2.00.0040.00418.25
8.1.280.0100.00725.92
8.1.270.0000.00723.96
8.1.260.0050.00326.35
8.1.250.0030.00528.09
8.1.240.0040.00423.88
8.1.230.0070.00419.00
8.1.220.0060.00317.91
8.1.210.0060.00618.77
8.1.200.0040.00417.48
8.1.190.0080.00017.25
8.1.180.0000.00818.10
8.1.170.0070.00019.00
8.1.160.0000.00718.96
8.1.150.0040.00420.59
8.1.140.0000.00719.52
8.1.130.0030.00318.89
8.1.120.0040.00417.47
8.1.110.0040.00417.43
8.1.100.0000.00817.38
8.1.90.0000.00817.41
8.1.80.0040.00417.50
8.1.70.0000.00717.30
8.1.60.0080.00417.68
8.1.50.0050.00317.60
8.1.40.0000.00717.47
8.1.30.0030.00617.75
8.1.20.0040.00417.61
8.1.10.0040.00417.59
8.1.00.0050.00317.46
8.0.300.0000.00720.04
8.0.290.0000.00816.88
8.0.280.0030.00318.50
8.0.270.0030.00317.28
8.0.260.0000.00816.86
8.0.250.0030.00317.08
8.0.240.0000.00817.05
8.0.230.0030.00517.05
8.0.220.0000.00717.01
8.0.210.0000.00717.02
8.0.200.0030.00316.93
8.0.190.0060.00316.93
8.0.180.0050.00216.95
8.0.170.0040.00416.91
8.0.160.0000.00716.92
8.0.150.0030.00516.99
8.0.140.0040.00416.81
8.0.130.0000.00513.39
8.0.120.0070.00016.83
8.0.110.0040.00416.83
8.0.100.0000.00817.03
8.0.90.0000.00716.90
8.0.80.0070.01016.93
8.0.70.0040.00416.83
8.0.60.0040.00417.09
8.0.50.0040.00416.92
8.0.30.0100.00717.26
8.0.20.0080.01017.40
8.0.10.0040.00417.13
8.0.00.0060.01216.74
7.4.330.0000.00515.55
7.4.320.0030.00316.66
7.4.300.0060.00016.68
7.4.290.0030.00316.71
7.4.280.0020.00516.54
7.4.270.0040.00416.61
7.4.260.0000.00716.68
7.4.250.0000.00816.64
7.4.240.0070.00016.68
7.4.230.0030.00316.45
7.4.220.0200.00716.66
7.4.210.0070.01216.58
7.4.200.0070.00016.77
7.4.160.0080.00816.68
7.4.150.0080.00817.40
7.4.140.0080.01317.86
7.4.130.0110.00816.57
7.4.120.0110.00816.61
7.3.330.0000.00513.43
7.3.320.0000.00613.36
7.3.310.0000.00716.49
7.3.300.0050.00216.41
7.3.290.0050.01116.50
7.3.280.0080.00816.50
7.3.270.0140.00317.40
7.3.260.0100.00716.49
7.3.250.0070.01216.48
7.3.240.0130.00516.41
7.1.70.0110.00417.47

preferences:
41.95 ms | 401 KiB | 5 Q