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) >= $strlen) { 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)
8.3.60.0090.00616.88
8.3.50.0080.00816.50
8.3.40.0120.00318.76
8.3.30.0080.00818.73
8.3.20.0040.00420.29
8.3.10.0060.00323.56
8.3.00.0000.00822.21
8.2.180.0170.00016.75
8.2.170.0100.00322.96
8.2.160.0070.01119.33
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00421.02
8.2.120.0040.00426.35
8.2.110.0090.00021.09
8.2.100.0040.00718.03
8.2.90.0000.00819.13
8.2.80.0080.00017.97
8.2.70.0050.00317.63
8.2.60.0050.00318.02
8.2.50.0040.00418.10
8.2.40.0080.00020.59
8.2.30.0040.00421.16
8.2.20.0100.00018.13
8.2.10.0000.00718.22
8.2.00.0040.00418.09
8.1.280.0090.00925.92
8.1.270.0090.00023.97
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0080.00023.94
8.1.230.0030.00717.70
8.1.220.0080.00017.91
8.1.210.0030.00618.77
8.1.200.0000.00917.35
8.1.190.0030.00517.35
8.1.180.0070.00018.10
8.1.170.0040.00419.02
8.1.160.0040.00418.99
8.1.150.0030.00520.55
8.1.140.0070.00019.43
8.1.130.0030.00318.89
8.1.120.0000.00717.45
8.1.110.0000.00817.39
8.1.100.0040.00417.50
8.1.90.0040.00417.43
8.1.80.0070.00017.45
8.1.70.0000.00917.44
8.1.60.0090.00317.63
8.1.50.0000.00717.54
8.1.40.0030.00617.52
8.1.30.0060.00317.75
8.1.20.0040.00417.68
8.1.10.0040.00417.63
8.1.00.0000.00717.63
8.0.300.0070.00018.77
8.0.290.0000.00817.00
8.0.280.0000.00718.54
8.0.270.0040.00417.32
8.0.260.0000.00616.84
8.0.250.0000.00717.12
8.0.240.0030.00717.13
8.0.230.0000.00817.04
8.0.220.0030.00316.89
8.0.210.0000.00716.91
8.0.200.0030.00316.89
8.0.190.0030.00617.06
8.0.180.0040.00416.87
8.0.170.0030.00316.89
8.0.160.0050.00317.05
8.0.150.0040.00416.88
8.0.140.0040.00416.97
8.0.130.0050.00013.38
8.0.120.0070.00016.99
8.0.110.0040.00416.89
8.0.100.0040.00416.77
8.0.90.0070.00016.82
8.0.80.0060.01016.94
8.0.70.0050.00316.91
8.0.60.0040.00416.94
8.0.50.0040.00416.99
8.0.30.0080.00817.16
8.0.20.0110.00817.41
8.0.10.0040.00416.93
8.0.00.0120.00616.80
7.4.330.0000.00515.55
7.4.320.0000.00716.60
7.4.300.0030.00316.58
7.4.290.0070.00016.55
7.4.280.0000.00816.70
7.4.270.0030.00316.56
7.4.260.0030.00316.64
7.4.250.0040.00416.52
7.4.240.0030.00316.65
7.4.230.0000.00716.64
7.4.220.0170.00716.70
7.4.210.0030.01616.60
7.4.200.0030.00316.40
7.4.160.0080.01016.66
7.4.150.0040.01217.40
7.4.140.0080.01017.86
7.4.130.0130.00316.66
7.4.120.0100.01016.64
7.3.330.0000.00613.32
7.3.320.0030.00313.46
7.3.310.0040.00416.49
7.3.300.0070.00016.40
7.3.290.0070.00816.47
7.3.280.0080.00916.45
7.3.270.0110.00717.40
7.3.260.0090.00916.46
7.3.250.0130.00716.55
7.3.240.0030.01516.50
7.1.70.0030.01417.44

preferences:
40.76 ms | 400 KiB | 5 Q