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)
8.3.60.0120.00416.63
8.3.50.0070.00716.59
8.3.40.0090.00618.92
8.3.30.0040.01118.75
8.3.20.0080.00020.29
8.3.10.0060.00623.65
8.3.00.0000.00722.14
8.2.180.0110.00716.73
8.2.170.0140.00022.96
8.2.160.0070.00719.16
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0090.00020.93
8.2.120.0080.00026.35
8.2.110.0070.00722.24
8.2.100.0040.00917.84
8.2.90.0060.00318.03
8.2.80.0060.00317.97
8.2.70.0070.00317.75
8.2.60.0000.00818.05
8.2.50.0040.00418.10
8.2.40.0000.00820.55
8.2.30.0060.00321.15
8.2.20.0000.01017.99
8.2.10.0000.00718.05
8.2.00.0000.00718.27
8.1.280.0140.00425.92
8.1.270.0040.00423.92
8.1.260.0050.00226.35
8.1.250.0050.00228.09
8.1.240.0040.00422.19
8.1.230.0040.00820.66
8.1.220.0000.00817.74
8.1.210.0000.00819.04
8.1.200.0060.00317.36
8.1.190.0050.00317.25
8.1.180.0040.00418.10
8.1.170.0070.00018.96
8.1.160.0030.00319.06
8.1.150.0000.00720.54
8.1.140.0040.00419.65
8.1.130.0070.00018.78
8.1.120.0000.00717.50
8.1.110.0070.00017.45
8.1.100.0040.00417.50
8.1.90.0050.00217.37
8.1.80.0000.00717.45
8.1.70.0000.00717.36
8.1.60.0100.00517.69
8.1.50.0000.00817.61
8.1.40.0040.00417.41
8.1.30.0000.00917.57
8.1.20.0040.00417.69
8.1.10.0090.00017.60
8.1.00.0080.00017.52
8.0.300.0070.00020.01
8.0.290.0000.00816.88
8.0.280.0020.00518.43
8.0.270.0030.00317.26
8.0.260.0060.00016.81
8.0.250.0000.00717.02
8.0.240.0030.00616.99
8.0.230.0040.00417.08
8.0.220.0000.00716.89
8.0.210.0040.00416.95
8.0.200.0030.00316.89
8.0.190.0030.00616.90
8.0.180.0050.00216.98
8.0.170.0000.00716.91
8.0.160.0040.00416.97
8.0.150.0040.00416.78
8.0.140.0080.00016.84
8.0.130.0030.00613.31
8.0.120.0000.00716.82
8.0.110.0040.00416.77
8.0.100.0000.00716.86
8.0.90.0030.00517.01
8.0.80.0070.01316.97
8.0.70.0030.00517.01
8.0.60.0000.00816.93
8.0.50.0000.00716.98
8.0.30.0110.00617.13
8.0.20.0110.00817.40
8.0.10.0030.00517.06
8.0.00.0140.00716.79
7.4.330.0060.00015.55
7.4.320.0000.00616.51
7.4.300.0030.00316.48
7.4.290.0030.00316.66
7.4.280.0040.00416.69
7.4.270.0070.00016.50
7.4.260.0040.00416.51
7.4.250.0000.00816.64
7.4.240.0050.00316.71
7.4.230.0070.00016.50
7.4.220.0090.00916.48
7.4.210.0090.00616.57
7.4.200.0040.00416.45
7.4.160.0090.00816.79
7.4.150.0150.00317.40
7.4.140.0110.01117.86
7.4.130.0180.00016.51
7.4.120.0110.00816.51
7.3.330.0000.00613.54
7.3.320.0000.00513.35
7.3.310.0040.00416.54
7.3.300.0030.00316.49
7.3.290.0100.00516.43
7.3.280.0100.00716.47
7.3.270.0130.00317.40
7.3.260.0050.01216.38
7.3.250.0090.00916.63
7.3.240.0020.01416.66
7.1.70.0510.00717.46

preferences:
42.64 ms | 401 KiB | 5 Q