3v4l.org

run code in 300+ PHP versions simultaneously
<?php mt_srand(42); for ($i = 0; $i < 10; $i++) { $key = generate_key(40 + $i); echo "$key " . strlen($key) . "\n"; } function generate_key($length) { $key = base64_urlencode(random_bytes(ceil($length * 0.75))); if (strlen($key) > $length) { $key = substr($key, 0, $length); } return $key; } function base64_urlencode($data) { return str_replace( array('+', '/', '='), array('-', '_', ''), base64_encode($data) ); } function random_bytes($length) { if (function_exists("openssl_random_pseudo_bytes")) { return openssl_random_pseudo_bytes($length); } $data = ""; for ($i = 0; $i < $length; $i++) { $data .= chr(mt_rand(0, 255)); } return $data; }

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)
5.6.280.0070.07020.82
5.6.210.0130.07020.46
5.6.200.0030.06718.24
5.6.190.0100.08320.66
5.6.180.3700.04320.69
5.6.170.0200.04320.46
5.6.160.0070.08320.48
5.6.150.0030.04318.35
5.6.140.0030.06718.17
5.6.130.0100.08718.18
5.6.120.0130.07321.16
5.6.110.0170.08721.02
5.6.100.0030.04321.05
5.6.90.0100.08321.18
5.6.80.0000.08320.43
5.6.70.4800.03720.54
5.5.350.0300.07020.51
5.5.340.0000.04718.05
5.5.330.0070.06320.55
5.5.320.0500.07020.41
5.5.310.0400.07020.43
5.5.300.0030.05718.14
5.5.290.0130.06017.98
5.5.280.0000.08020.85
5.5.270.0030.09020.88
5.5.260.0030.04320.93
5.5.250.0000.08020.73
5.5.240.0230.05020.23
5.4.450.0370.03729.93
5.4.440.0430.04029.93
5.4.430.0370.03729.93
5.4.420.0230.05329.93
5.4.410.0270.04029.93
5.4.400.0530.03729.92
5.4.390.0300.03729.16
5.4.380.0130.05718.64
5.4.370.0130.05318.48
5.4.360.0270.06318.59
5.4.350.0170.05318.84
5.4.340.0170.05318.57
5.4.320.0040.03812.51
5.4.310.0040.03912.51
5.4.300.0040.03912.51
5.4.290.0040.04012.51
5.4.280.0050.03712.40
5.4.270.0050.03812.41
5.4.260.0060.03812.40
5.4.250.0090.03512.40
5.4.240.0040.04012.40
5.4.230.0090.03512.40
5.4.220.0080.03412.39
5.4.210.0050.04112.39
5.4.200.0040.04012.40
5.4.190.0090.03512.39
5.4.180.0070.03512.39
5.4.170.0040.03812.40
5.4.160.0040.03812.39
5.4.150.0060.03612.39
5.4.140.0060.03712.07
5.4.130.0070.03412.06
5.4.120.0070.03412.02
5.4.110.0060.03512.02
5.4.100.0050.03712.02
5.4.90.0070.04112.02
5.4.80.0060.04012.02
5.4.70.0080.03912.01
5.4.60.0080.03612.01
5.4.50.0070.04012.02
5.4.40.0050.03712.00
5.4.30.0060.03712.00
5.4.20.0070.03812.00
5.4.10.0080.04512.00
5.4.00.0060.03811.48
5.3.290.0030.04112.80
5.3.280.0060.03912.71
5.3.270.0090.03712.73
5.3.260.0090.03712.72
5.3.250.0120.03412.72
5.3.240.0060.04112.72
5.3.230.0100.03512.71
5.3.220.0050.03912.68
5.3.210.0050.04112.68
5.3.200.0070.03612.68
5.3.190.0050.03912.68
5.3.180.0100.03312.67
5.3.170.0080.03512.67
5.3.160.0040.04012.67
5.3.150.0090.03412.67
5.3.140.0050.03812.66
5.3.130.0030.04212.66
5.3.120.0110.03412.65
5.3.110.0110.03412.66
5.3.100.0060.03812.13
5.3.90.0060.03712.11
5.3.80.0090.03312.10
5.3.70.0080.03612.10
5.3.60.0050.03912.08
5.3.50.0030.03912.04
5.3.40.0070.03512.03
5.3.30.0070.03411.99
5.3.20.0080.03511.78
5.3.10.0070.03611.73
5.3.00.0050.04311.72
5.2.170.0080.0289.23
5.2.160.0080.0269.23
5.2.150.0050.0329.23
5.2.140.0050.0329.23
5.2.130.0040.0329.19
5.2.120.0070.0369.18
5.2.110.0070.0309.20
5.2.100.0070.0289.19
5.2.90.0040.0339.19
5.2.80.0070.0289.18
5.2.70.0050.0319.18
5.2.60.0030.0339.13
5.2.50.0040.0319.11
5.2.40.0040.0309.09
5.2.30.0060.0299.06
5.2.20.0070.0279.04
5.2.10.0050.0288.95
5.2.00.0030.0318.82
5.1.60.0040.0268.10
5.1.50.0050.0248.09
5.1.40.0070.0228.08
5.1.30.0050.0278.43
5.1.20.0060.0258.45
5.1.10.0080.0248.17
5.1.00.0050.0268.17
5.0.50.0030.0226.65
5.0.40.0030.0206.51
5.0.30.0050.0316.32
5.0.20.0050.0216.31
5.0.10.0040.0216.29
5.0.00.0040.0346.28
4.4.90.0020.0184.77
4.4.80.0050.0164.75
4.4.70.0010.0184.76
4.4.60.0070.0144.75
4.4.50.0050.0144.77
4.4.40.0030.0254.71
4.4.30.0030.0164.76
4.4.20.0040.0144.85
4.4.10.0030.0164.85
4.4.00.0010.0274.76
4.3.110.0030.0164.67
4.3.100.0020.0164.66
4.3.90.0040.0144.64
4.3.80.0020.0264.58
4.3.70.0020.0184.63
4.3.60.0040.0144.63
4.3.50.0010.0194.63
4.3.40.0000.0294.54
4.3.30.0010.0183.34
4.3.20.0020.0173.32
4.3.10.0030.0163.28
4.3.00.0030.01328.29

preferences:
141.08 ms | 1394 KiB | 7 Q