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]; $val = (int)($val / $base); } return $str; } function gdr_decode($str) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!='; $base = strlen($chars); $map = array(); for ($i=0; i<$base; $i++) { $map[$chars[$i]] = $base; } $val = 0; for ($i=0; i<strlen($str); $i++) { $val *= $base; $val += (int)$map[]; } 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) { $enc = json_encode(gdr_encode($val)); $dec = json_encode(gdr_decode($enc)); $val = json_encode($val); if (strlen($enc) > strlen($val)) { echo "$enc $val WORSE\n"; } else if (strlen($enc) == 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)
5.4.310.0090.03612.52
5.4.300.0100.03312.52
5.4.290.0070.03712.52
5.4.280.0050.03612.41
5.4.270.0090.03312.41
5.4.260.0050.04212.41
5.4.250.0070.03812.41
5.4.240.0060.03812.41
5.4.230.0050.04012.41
5.4.220.0070.03812.40
5.4.210.0060.05012.40
5.4.200.0060.03712.40
5.4.190.0050.04312.40
5.4.180.0090.04612.40
5.4.170.0050.03812.41
5.4.160.0060.04312.41
5.4.150.0050.03912.40
5.4.140.0040.04112.09
5.4.130.0030.04012.07
5.4.120.0030.03912.03
5.4.110.0120.02912.03
5.4.100.0080.03312.03
5.4.90.0060.03712.03
5.4.80.0050.03812.02
5.4.70.0060.03612.02
5.4.60.0050.03712.02
5.4.50.0080.03612.02
5.4.40.0050.03812.01
5.4.30.0060.03712.01
5.4.20.0040.04012.01
5.4.10.0110.03212.01
5.4.00.0040.04011.50
5.3.290.0060.04012.80
5.3.280.0050.04012.70
5.3.270.0110.03612.72
5.3.260.0060.04212.72
5.3.250.0070.03812.72
5.3.240.0050.03912.72
5.3.230.0080.05512.71
5.3.220.0100.04112.68
5.3.210.0080.03812.68
5.3.200.0110.03712.68
5.3.190.0080.05012.68
5.3.180.0090.05112.68
5.3.170.0100.04112.67
5.3.160.0090.04012.68
5.3.150.0070.04512.68
5.3.140.0110.06212.66
5.3.130.0110.06712.66
5.3.120.0160.05312.66
5.3.110.0080.04012.66
5.3.100.0070.04212.13
5.3.90.0060.04212.11
5.3.80.0060.03812.09
5.3.70.0080.04412.09
5.3.60.0100.05112.09
5.3.50.0080.04312.04
5.3.40.0090.03412.02
5.3.30.0050.03711.99
5.3.20.0080.03411.77
5.3.10.0020.04011.74
5.3.00.0060.03911.72
5.2.170.0090.0289.23
5.2.160.0030.0319.23
5.2.150.0040.0369.22
5.2.140.0050.0309.22
5.2.130.0050.0309.18
5.2.120.0040.0309.18
5.2.110.0050.0309.19
5.2.100.0040.0299.19
5.2.90.0040.0389.19
5.2.80.0070.0329.18
5.2.70.0050.0369.18
5.2.60.0060.0309.14
5.2.50.0060.0319.10
5.2.40.0060.0279.08
5.2.30.0070.0299.05
5.2.20.0050.0309.04
5.2.10.0080.0278.95
5.2.00.0060.0418.81
5.1.60.0060.0268.09
5.1.50.0050.0298.09
5.1.40.0030.0268.07
5.1.30.0030.0288.42
5.1.20.0050.0278.45
5.1.10.0070.0238.16
5.1.00.0040.0268.17
5.0.50.0020.0226.65
5.0.40.0020.0216.51
5.0.30.0030.0336.32
5.0.20.0050.0186.29
5.0.10.0040.0196.27
5.0.00.0040.0306.26
4.4.90.0030.0194.78
4.4.80.0040.0234.76
4.4.70.0020.0244.76
4.4.60.0050.0214.75
4.4.50.0030.0234.77
4.4.40.0030.0394.71
4.4.30.0030.0224.76
4.4.20.0060.0214.84
4.4.10.0060.0264.84
4.4.00.0010.0304.76
4.3.110.0020.0234.67
4.3.100.0050.0134.67
4.3.90.0020.0164.63
4.3.80.0030.0244.59
4.3.70.0020.0154.63
4.3.60.0030.0144.62
4.3.50.0020.0164.63
4.3.40.0020.0254.53
4.3.30.0020.0163.31
4.3.20.0020.0163.29
4.3.10.0020.0163.25
4.3.00.0130.01315.90

preferences:
144.16 ms | 1394 KiB | 7 Q