3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { $bin = ''; while ($val > 0) { $bin .= chr($val & 0xFF); $val >>= 8; } return str_replace(array('/', '='), array('_', ''), base64_encode($bin)); } function gdr_decode($str) { $bin = base64_decode(str_replace('_', '/', $str)); $val = 0; for ($i=strlen($bin)-1; $i>=0; $i--) { $val |= ord($bin[$i]) << $i*8; } return $val; } if (!function_exists('json_encode') { die('json_encode missing'); } $vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296); foreach ($vals as $val) { $enc = json_encode(gdr_encode($val)); $dec = json_encode(gdr_decode($enc)); $val = json_encode($val);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)
5.4.310.0080.05212.52
5.4.300.0120.04512.52
5.4.290.0070.05412.52
5.4.280.0050.04812.41
5.4.270.0070.05512.42
5.4.260.0100.05912.42
5.4.250.0090.05112.41
5.4.240.0060.04012.41
5.4.230.0120.04712.41
5.4.220.0050.04412.41
5.4.210.0070.04012.41
5.4.200.0050.03712.41
5.4.190.0040.03712.40
5.4.180.0100.03212.41
5.4.170.0040.03712.41
5.4.160.0070.03412.41
5.4.150.0040.03712.40
5.4.140.0060.03712.09
5.4.130.0070.03512.07
5.4.120.0060.03612.04
5.4.110.0070.03312.03
5.4.100.0050.03912.04
5.4.90.0100.04312.03
5.4.80.0070.03812.03
5.4.70.0050.03612.03
5.4.60.0090.03212.03
5.4.50.0060.03712.03
5.4.40.0050.03512.02
5.4.30.0040.03812.02
5.4.20.0050.03612.01
5.4.10.0060.03512.02
5.4.00.0050.03611.51
5.3.290.0040.04312.80
5.3.280.0060.03712.71
5.3.270.0040.04212.73
5.3.260.0020.04212.72
5.3.250.0040.03912.72
5.3.240.0100.03312.72
5.3.230.0070.04912.71
5.3.220.0030.05712.68
5.3.210.0070.04712.68
5.3.200.0070.03612.68
5.3.190.0080.03812.68
5.3.180.0060.03612.67
5.3.170.0040.03912.67
5.3.160.0040.03812.67
5.3.150.0070.03612.68
5.3.140.0040.04212.66
5.3.130.0090.03912.66
5.3.120.0090.05212.66
5.3.110.0060.04912.66
5.3.100.0070.03612.13
5.3.90.0070.03612.11
5.3.80.0030.03912.10
5.3.70.0080.03412.10
5.3.60.0040.03912.09
5.3.50.0060.05012.03
5.3.40.0030.04812.03
5.3.30.0050.03711.99
5.3.20.0060.03511.77
5.3.10.0050.03611.74
5.3.00.0060.04711.73
5.2.170.0030.0329.22
5.2.160.0060.0279.22
5.2.150.0020.0329.22
5.2.140.0030.0319.22
5.2.130.0070.0319.18
5.2.120.0020.0309.18
5.2.110.0070.0339.19
5.2.100.0080.0289.18
5.2.90.0050.0309.18
5.2.80.0060.0419.19
5.2.70.0060.0289.18
5.2.60.0080.0269.14
5.2.50.0030.0339.11
5.2.40.0040.0299.08
5.2.30.0030.0329.06
5.2.20.0080.0339.05
5.2.10.0080.0328.95
5.2.00.0030.0428.82
5.1.60.0030.0358.09
5.1.50.0060.0268.09
5.1.40.0010.0288.08
5.1.30.0040.0268.43
5.1.20.0050.0258.45
5.1.10.0010.0298.17
5.1.00.0050.0298.17
5.0.50.0040.0286.64
5.0.40.0040.0206.52
5.0.30.0050.0296.32
5.0.20.0050.0186.29
5.0.10.0030.0216.27
5.0.00.0050.0296.27
4.4.90.0010.0174.78
4.4.80.0040.0154.75
4.4.70.0040.0164.75
4.4.60.0020.0174.75
4.4.50.0040.0144.77
4.4.40.0020.0274.71
4.4.30.0030.0154.76
4.4.20.0040.0144.85
4.4.10.0040.0144.85
4.4.00.0040.0244.76
4.3.110.0040.0144.67
4.3.100.0010.0174.66
4.3.90.0020.0154.63
4.3.80.0020.0264.58
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0030.0244.54
4.3.30.0030.0153.30
4.3.20.0010.0173.28
4.3.10.0040.0153.25
4.3.00.0030.0206.95

preferences:
141.73 ms | 1394 KiB | 7 Q