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 >= $cutoff) { continue; } echo ($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)
8.3.60.0090.00616.50
8.3.50.0100.00316.50
8.3.40.0150.00318.90
8.3.30.0090.00618.88
8.3.20.0050.00320.35
8.3.10.0040.00823.74
8.3.00.0080.00022.17
8.2.180.0090.00616.48
8.2.170.0110.00422.96
8.2.160.0070.00719.33
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00319.42
8.2.120.0040.00426.35
8.2.110.0030.00821.00
8.2.100.0040.00818.03
8.2.90.0090.00019.19
8.2.80.0040.00417.97
8.2.70.0060.00617.63
8.2.60.0050.00318.03
8.2.50.0040.00418.10
8.2.40.0040.00420.54
8.2.30.0000.00721.10
8.2.20.0000.01118.04
8.2.10.0070.00018.07
8.2.00.0000.00718.25
8.1.280.0140.00725.92
8.1.270.0040.00422.19
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00323.96
8.1.230.0110.00019.22
8.1.220.0040.00417.91
8.1.210.0000.00818.77
8.1.200.0090.00017.48
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0040.00419.01
8.1.160.0070.00019.07
8.1.150.0070.00020.65
8.1.140.0040.00419.52
8.1.130.0000.00718.89
8.1.120.0000.00717.52
8.1.110.0070.00017.31
8.1.100.0040.00417.48
8.1.90.0000.00717.37
8.1.80.0050.00317.51
8.1.70.0070.00017.36
8.1.60.0030.00817.62
8.1.50.0050.00217.58
8.1.40.0000.00817.46
8.1.30.0030.00517.81
8.1.20.0050.00317.57
8.1.10.0040.00417.58
8.1.00.0040.00417.63
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0000.00718.52
8.0.270.0070.00017.34
8.0.260.0030.00316.95
8.0.250.0030.00317.02
8.0.240.0080.00016.97
8.0.230.0000.00816.99
8.0.220.0030.00316.92
8.0.210.0040.00416.92
8.0.200.0000.00616.99
8.0.190.0090.00017.02
8.0.180.0040.00417.03
8.0.170.0040.00417.01
8.0.160.0000.00817.02
8.0.150.0030.00516.94
8.0.140.0070.00016.84
8.0.130.0060.00013.43
8.0.120.0040.00416.82
8.0.110.0000.00816.91
8.0.100.0020.00516.85
8.0.90.0000.00717.03
8.0.80.0070.01416.94
8.0.70.0000.00716.96
8.0.60.0000.00816.94
8.0.50.0000.00716.79
8.0.30.0100.00817.15
8.0.20.0110.00817.40
8.0.10.0040.00416.99
8.0.00.0100.00716.55
7.4.330.0000.00615.55
7.4.320.0000.00616.50
7.4.300.0000.00616.67
7.4.290.0070.00016.58
7.4.280.0040.00416.55
7.4.270.0030.00516.57
7.4.260.0070.00016.68
7.4.250.0070.00016.53
7.4.240.0030.00616.70
7.4.230.0000.00716.75
7.4.220.0130.00616.79
7.4.210.0070.01016.52
7.4.200.0000.00716.77
7.4.160.0090.00816.54
7.4.150.0060.01117.40
7.4.140.0090.01017.86
7.4.130.0120.00416.47
7.4.120.0120.00716.61
7.3.330.0030.00313.51
7.3.320.0020.00313.36
7.3.310.0070.00016.39
7.3.300.0030.00316.50
7.3.290.0050.00916.50
7.3.280.0070.01116.49
7.3.270.0130.00317.40
7.3.260.0080.00916.67
7.3.250.0150.00216.54
7.3.240.0080.01116.42
7.1.70.0030.01417.47

preferences:
34.43 ms | 401 KiB | 5 Q