3v4l.org

run code in 300+ PHP versions simultaneously
<?php mt_srand(42); for ($i = 0; $i < 20; $i++) { echo generate_key(20 + $i) . "\n"; } function generate_key($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)
7.2.00.0030.00919.35
7.1.70.0000.00817.34
7.1.60.0070.01819.70
7.1.50.0000.02417.18
7.1.00.0030.07722.41
7.0.200.0030.00316.99
7.0.140.0070.06722.07
7.0.60.0070.04720.04
7.0.50.0030.05717.98
7.0.40.0030.04320.05
7.0.30.0270.08320.27
7.0.20.0230.03720.08
7.0.10.0070.08720.09
7.0.00.0030.07720.29
5.6.280.0030.07721.00
5.6.210.0070.05020.56
5.6.200.0100.04018.22
5.6.190.0000.04720.52
5.6.180.0170.04720.73
5.6.170.0130.04720.56
5.6.160.0030.05020.45
5.6.150.0030.08718.25
5.6.140.0070.08318.25
5.6.130.0070.07718.27
5.6.120.0100.06021.06
5.6.110.0030.09021.02
5.6.100.0000.09020.99
5.6.90.0030.08721.17
5.6.80.0070.08720.55
5.6.70.0070.07320.34
5.5.350.0070.07320.50
5.5.340.0130.07317.98
5.5.330.0100.06720.43
5.5.320.0170.04020.39
5.5.310.0170.04320.48
5.5.300.0030.05318.07
5.5.290.0030.04017.92
5.5.280.0100.06320.66
5.5.270.0100.03720.83
5.5.260.0070.08320.98
5.5.250.0000.04320.70
5.5.240.0000.07020.28
5.4.450.0330.03730.85
5.4.440.0770.03029.93
5.4.430.0330.05029.93
5.4.420.0300.04029.93
5.4.410.0200.04729.93
5.4.400.0430.03329.92
5.4.390.0200.03729.33
5.4.380.0070.06018.78
5.4.370.0170.04718.70
5.4.360.0170.04718.84
5.4.350.0100.05718.80
5.4.340.0230.04318.80
5.4.320.0050.04112.51
5.4.310.0080.04012.50
5.4.300.0060.03912.51
5.4.290.0090.03712.50
5.4.280.0040.03912.40
5.4.270.0060.03812.40
5.4.260.0090.03512.40
5.4.250.0070.03712.40
5.4.240.0060.03712.40
5.4.230.0040.04112.40
5.4.220.0070.03712.39
5.4.210.0100.03712.39
5.4.200.0060.03912.40
5.4.190.0050.03912.39
5.4.180.0050.03812.39
5.4.170.0090.03312.40
5.4.160.0060.03712.39
5.4.150.0050.03812.39
5.4.140.0060.03912.07
5.4.130.0040.03912.06
5.4.120.0030.04012.02
5.4.110.0060.03812.01
5.4.100.0050.03712.02
5.4.90.0090.03512.02
5.4.80.0040.04112.02
5.4.70.0030.04112.01
5.4.60.0070.03812.01
5.4.50.0060.04012.02
5.4.40.0050.03712.00
5.4.30.0060.03712.00
5.4.20.0040.03812.00
5.4.10.0060.03512.00
5.4.00.0040.04011.49
5.3.290.0030.04412.80
5.3.280.0040.04112.71
5.3.270.0060.04012.73
5.3.260.0060.04212.72
5.3.250.0050.04012.72
5.3.240.0070.05412.72
5.3.230.0050.04312.70
5.3.220.0070.03912.68
5.3.210.0100.04412.68
5.3.200.0090.03712.68
5.3.190.0060.04412.68
5.3.180.0100.04012.68
5.3.170.0110.03612.67
5.3.160.0080.06312.67
5.3.150.0110.04712.68
5.3.140.0120.05112.66
5.3.130.0070.05812.66
5.3.120.0120.04912.66
5.3.110.0070.04512.66
5.3.100.0070.04212.13
5.3.90.0090.04512.11
5.3.80.0050.05812.10
5.3.70.0050.04512.10
5.3.60.0120.03612.09
5.3.50.0090.03812.03
5.3.40.0080.04812.04
5.3.30.0090.05011.99
5.3.20.0070.03911.77
5.3.10.0050.04611.74
5.3.00.0060.04711.72
5.2.170.0070.0359.23
5.2.160.0070.0339.23
5.2.150.0100.0379.23
5.2.140.0060.0339.23
5.2.130.0080.0279.19
5.2.120.0080.0309.19
5.2.110.0070.0319.19
5.2.100.0040.0359.19
5.2.90.0070.0329.19
5.2.80.0030.0369.18
5.2.70.0040.0369.18
5.2.60.0060.0339.14
5.2.50.0040.0359.11
5.2.40.0050.0309.08
5.2.30.0050.0349.06
5.2.20.0070.0319.04
5.2.10.0120.0338.95
5.2.00.0110.0368.82
5.1.60.0080.0288.10
5.1.50.0040.0318.09
5.1.40.0070.0338.08
5.1.30.0090.0318.43
5.1.20.0070.0278.45
5.1.10.0060.0278.17
5.1.00.0010.0328.17
5.0.50.0020.0256.65
5.0.40.0060.0206.51
5.0.30.0030.0346.32
5.0.20.0010.0236.31
5.0.10.0020.0236.29
5.0.00.0030.0336.28
4.4.90.0020.0184.78
4.4.80.0010.0194.75
4.4.70.0030.0174.75
4.4.60.0060.0144.75
4.4.50.0050.0144.77
4.4.40.0030.0274.71
4.4.30.0040.0164.76
4.4.20.0010.0194.84
4.4.10.0040.0164.85
4.4.00.0050.0244.76
4.3.110.0070.0134.67
4.3.100.0040.0164.66
4.3.90.0030.0174.64
4.3.80.0030.0324.58
4.3.70.0050.0194.63
4.3.60.0040.0194.63
4.3.50.0020.0194.63
4.3.40.0010.0264.54
4.3.30.0040.0143.34
4.3.20.0010.0203.32
4.3.10.0020.0173.28
4.3.00.0030.02028.29

preferences:
32.67 ms | 400 KiB | 5 Q