3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!='; $base = strlen($chars); $str = ''; while ($val > 0) { $str = $chars[$val % $base] . $str; $val = (int)($val / $base); } return $str; } function gdr_decode($str) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!='; $base = strlen($chars); $map = array(); for ($i=0; $i<$base; $i++) { $map[$chars[$i]] = $i; } $val = 0; for ($i=0; $i<strlen($str); $i++) { $val *= $base; $val += (int)$map[$str[$i]]; } return $val; } $vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296); foreach ($vals as $val) { $enc = gdr_encode($val); $dec = gdr_decode($enc); if ($dec !== $val) { echo "ERROR: $val => $enc => $dec\n" } else if (strlen($enc)+2 > strlen($val)) { echo "\"$enc\" $val WORSE\n"; } else if (strlen($enc)+2 == strlen($val)) { echo "\"$enc\" $val EQUAL\n"; } else { echo "\"$enc\" $val\n"; } }

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)
5.4.310.0050.03712.52
5.4.300.0050.03712.52
5.4.290.0050.03912.52
5.4.280.0060.03512.41
5.4.270.0090.03312.41
5.4.260.0050.03812.41
5.4.250.0050.03812.41
5.4.240.0060.03712.41
5.4.230.0060.03812.41
5.4.220.0070.03512.41
5.4.210.0080.03312.41
5.4.200.0060.03712.41
5.4.190.0040.03712.40
5.4.180.0050.03612.41
5.4.170.0070.03412.41
5.4.160.0090.03412.40
5.4.150.0040.03712.40
5.4.140.0070.03612.09
5.4.130.0060.03512.07
5.4.120.0070.03412.04
5.4.110.0030.03812.03
5.4.100.0060.03412.03
5.4.90.0070.03712.04
5.4.80.0050.03812.04
5.4.70.0050.03512.04
5.4.60.0030.03812.03
5.4.50.0060.03612.03
5.4.40.0060.04612.02
5.4.30.0070.03612.02
5.4.20.0080.03312.02
5.4.10.0040.03612.01
5.4.00.0050.03711.51
5.3.290.0070.03712.80
5.3.280.0130.03812.71
5.3.270.0070.03812.73
5.3.260.0080.03712.72
5.3.250.0090.03412.72
5.3.240.0040.03912.72
5.3.230.0060.03812.71
5.3.220.0070.03512.68
5.3.210.0070.03812.68
5.3.200.0070.03812.68
5.3.190.0090.03412.68
5.3.180.0020.04112.67
5.3.170.0070.05112.67
5.3.160.0030.05612.67
5.3.150.0120.06812.68
5.3.140.0050.06012.66
5.3.130.0110.05212.66
5.3.120.0070.03812.66
5.3.110.0060.03812.66
5.3.100.0030.03912.13
5.3.90.0070.04212.11
5.3.80.0060.03712.10
5.3.70.0060.03712.10
5.3.60.0050.03712.09
5.3.50.0060.03512.03
5.3.40.0060.03512.03
5.3.30.0070.03511.99
5.3.20.0070.03511.78
5.3.10.0060.03411.74
5.3.00.0070.03811.72
5.2.170.0040.0329.23
5.2.160.0070.0299.23
5.2.150.0090.0339.23
5.2.140.0070.0339.23
5.2.130.0050.0309.18
5.2.120.0040.0369.19
5.2.110.0080.0339.20
5.2.100.0060.0289.19
5.2.90.0080.0269.19
5.2.80.0050.0319.18
5.2.70.0030.0329.19
5.2.60.0030.0329.14
5.2.50.0070.0289.11
5.2.40.0030.0309.09
5.2.30.0040.0319.06
5.2.20.0040.0299.05
5.2.10.0030.0288.95
5.2.00.0060.0298.82
5.1.60.0040.0248.10
5.1.50.0020.0278.10
5.1.40.0020.0308.08
5.1.30.0060.0248.43
5.1.20.0050.0258.45
5.1.10.0060.0248.17
5.1.00.0020.0278.18
5.0.50.0050.0196.66
5.0.40.0030.0396.52
5.0.30.0020.0386.33
5.0.20.0030.0196.30
5.0.10.0050.0186.27
5.0.00.0020.0326.26
4.4.90.0020.0154.78
4.4.80.0030.0144.76
4.4.70.0040.0144.75
4.4.60.0040.0154.76
4.4.50.0030.0144.77
4.4.40.0020.0274.70
4.4.30.0010.0174.76
4.4.20.0040.0144.84
4.4.10.0020.0194.85
4.4.00.0030.0254.76
4.3.110.0020.0204.67
4.3.100.0000.0214.66
4.3.90.0030.0154.64
4.3.80.0060.0244.58
4.3.70.0060.0134.63
4.3.60.0050.0134.63
4.3.50.0090.0174.63
4.3.40.0030.0234.54
4.3.30.0030.0153.32
4.3.20.0020.0163.30
4.3.10.0020.0193.25
4.3.00.0100.03015.90

preferences:
143.7 ms | 1394 KiB | 7 Q