3v4l.org

run code in 300+ PHP versions simultaneously
<?php mt_srand(42); for ($i = 0; $i < 20; $i++) { $key = generate_key(60); $len = strlen($key); echo "{$key} {$len}\n"; } function generate_key($n) { $key = base64_urlencode(rand_buffer(ceil($n*0.75))); if (strlen($key) > $n) { $key = substr($key, 0, $n); } return $key; } function base64_urlencode($buf) { return str_replace( array('+', '/', '='), array('-', '_', ''), base64_encode($buf) ); } function rand_buffer($n) { if (function_exists("openssl_random_pseudo_bytes")) { return openssl_random_pseudo_bytes($n); } $buf = ""; for ($i = 0; $i < $n; $i++) { $buf .= chr(mt_rand(0, 255)); } return $buf; }

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)
7.2.00.0000.01419.55
7.1.70.0030.00617.42
7.1.60.0030.02319.70
7.1.50.0070.01717.09
7.1.00.0030.07722.37
7.0.200.0000.00817.00
7.0.140.0100.06722.21
7.0.60.0070.04319.98
7.0.50.0100.08017.97
7.0.40.0000.04720.26
7.0.30.0470.04320.17
7.0.20.0300.07320.32
7.0.10.0070.04020.15
7.0.00.0030.04720.05
5.6.280.0070.07021.11
5.6.210.0170.08320.55
5.6.200.0070.07718.35
5.6.190.0100.08320.49
5.6.180.3030.04020.48
5.6.170.0230.07720.64
5.6.160.0070.08320.58
5.6.150.0130.04318.25
5.6.140.0170.07018.14
5.6.130.0130.08318.17
5.6.120.0100.05320.90
5.6.110.0070.08721.02
5.6.100.0130.07321.14
5.6.90.0100.08321.00
5.6.80.0070.04020.45
5.6.70.4300.03320.38
5.5.350.0130.04720.45
5.5.340.0100.07717.97
5.5.330.0070.09020.30
5.5.320.0230.05720.37
5.5.310.0200.08020.24
5.5.300.0070.08018.07
5.5.290.0000.04717.98
5.5.280.0170.07720.91
5.5.270.0100.08320.89
5.5.260.0130.07720.98
5.5.250.0130.07320.70
5.5.240.0200.08320.20
5.4.450.0230.04030.85
5.4.440.0270.04329.93
5.4.430.0270.04329.93
5.4.420.0230.04729.93
5.4.410.0270.03329.93
5.4.400.0370.04029.92
5.4.390.0430.05329.11
5.4.380.0200.04718.78
5.4.370.0100.05718.74
5.4.360.0100.05318.78
5.4.350.0070.06318.86
5.4.340.0200.04318.57
5.4.320.0090.03312.51
5.4.310.0040.03912.50
5.4.300.0080.03512.51
5.4.290.0080.04612.51
5.4.280.0090.04612.40
5.4.270.0070.03912.40
5.4.260.0060.05512.40
5.4.250.0070.04012.40
5.4.240.0060.03812.41
5.4.230.0070.03812.39
5.4.220.0070.03712.39
5.4.210.0070.03412.39
5.4.200.0040.04212.39
5.4.190.0070.03612.39
5.4.180.0050.03812.39
5.4.170.0030.04012.39
5.4.160.0060.03812.39
5.4.150.0070.03612.39
5.4.140.0040.04112.08
5.4.130.0070.03612.07
5.4.120.0010.04212.02
5.4.110.0080.03612.02
5.4.100.0090.04712.02
5.4.90.0070.05312.02
5.4.80.0120.04712.01
5.4.70.0090.04812.01
5.4.60.0030.03912.01
5.4.50.0060.03512.02
5.4.40.0030.03912.00
5.4.30.0010.04312.00
5.4.20.0060.03612.00
5.4.10.0080.03312.00
5.4.00.0060.03711.48
5.3.290.0070.04512.80
5.3.280.0070.03812.71
5.3.270.0080.03812.73
5.3.260.0040.04212.72
5.3.250.0070.03812.72
5.3.240.0090.03512.72
5.3.230.0070.03712.71
5.3.220.0060.03812.68
5.3.210.0080.04012.68
5.3.200.0060.03812.68
5.3.190.0030.04212.68
5.3.180.0060.03812.67
5.3.170.0080.03712.67
5.3.160.0070.03912.68
5.3.150.0070.03912.68
5.3.140.0080.03612.66
5.3.130.0080.03812.66
5.3.120.0110.03512.65
5.3.110.0120.04412.66
5.3.100.0070.04612.13
5.3.90.0080.04512.11
5.3.80.0120.03712.10
5.3.70.0130.04112.10
5.3.60.0120.03912.08
5.3.50.0120.04512.04
5.3.40.0080.04112.04
5.3.30.0070.04111.99
5.3.20.0080.04511.78
5.3.10.0070.05211.73
5.3.00.0090.04911.72
5.2.170.0070.0449.23
5.2.160.0110.0419.23
5.2.150.0040.0359.23
5.2.140.0080.0359.23
5.2.130.0090.0369.19
5.2.120.0040.0349.19
5.2.110.0060.0349.19
5.2.100.0070.0309.19
5.2.90.0020.0359.19
5.2.80.0070.0359.18
5.2.70.0110.0359.18
5.2.60.0070.0439.14
5.2.50.0070.0459.11
5.2.40.0050.0409.09
5.2.30.0070.0409.06
5.2.20.0090.0319.05
5.2.10.0040.0348.95
5.2.00.0080.0338.82
5.1.60.0060.0278.10
5.1.50.0070.0298.10
5.1.40.0040.0318.08
5.1.30.0050.0298.43
5.1.20.0050.0348.45
5.1.10.0070.0308.17
5.1.00.0050.0348.17
5.0.50.0050.0236.65
5.0.40.0060.0216.51
5.0.30.0090.0306.33
5.0.20.0050.0216.32
5.0.10.0050.0236.29
5.0.00.0030.0356.29
4.4.90.0040.0174.78
4.4.80.0070.0154.75
4.4.70.0040.0184.76
4.4.60.0070.0144.76
4.4.50.0060.0144.77
4.4.40.0040.0274.70
4.4.30.0030.0184.76
4.4.20.0020.0194.85
4.4.10.0020.0204.85
4.4.00.0030.0284.76
4.3.110.0020.0194.67
4.3.100.0050.0154.66
4.3.90.0040.0204.63
4.3.80.0060.0294.58
4.3.70.0060.0184.63
4.3.60.0010.0234.63
4.3.50.0040.0184.63
4.3.40.0070.0304.54
4.3.30.0010.0243.34
4.3.20.0030.0223.32
4.3.10.0040.0203.28
4.3.00.0070.01728.29

preferences:
36.9 ms | 401 KiB | 5 Q