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); if (strlen($enc) > strlen($val)) { echo "$enc $val FAIL: WORSE\n"; } elseĀ if (strlen($enc) == strlen($val)) { echo "$enc $val FAIL: EQUAL\n"; } else { echo "$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)
5.4.310.0080.04112.52
5.4.300.0090.03412.53
5.4.290.0060.04512.53
5.4.280.0070.03512.42
5.4.270.0040.03812.42
5.4.260.0040.04412.42
5.4.250.0070.03912.42
5.4.240.0070.03612.42
5.4.230.0040.03912.41
5.4.220.0050.03812.41
5.4.210.0050.03612.41
5.4.200.0060.03812.41
5.4.190.0050.03912.41
5.4.180.0050.03612.41
5.4.170.0050.04012.41
5.4.160.0070.03412.41
5.4.150.0060.03612.41
5.4.140.0070.03612.10
5.4.130.0050.03612.08
5.4.120.0060.03512.04
5.4.110.0070.03412.04
5.4.100.0050.03612.04
5.4.90.0110.03612.04
5.4.80.0040.03812.04
5.4.70.0040.03612.04
5.4.60.0050.03412.04
5.4.50.0050.03612.04
5.4.40.0050.03812.02
5.4.30.0070.03412.02
5.4.20.0040.03712.02
5.4.10.0050.03712.02
5.4.00.0050.03611.51
5.3.290.0090.04312.80
5.3.280.0050.03912.71
5.3.270.0040.04212.72
5.3.260.0050.04212.72
5.3.250.0080.03812.72
5.3.240.0060.04012.72
5.3.230.0050.03812.71
5.3.220.0070.03612.68
5.3.210.0040.04112.68
5.3.200.0070.03612.68
5.3.190.0080.03612.68
5.3.180.0060.03612.67
5.3.170.0070.03412.67
5.3.160.0090.03412.67
5.3.150.0060.03812.67
5.3.140.0040.03812.66
5.3.130.0050.03912.66
5.3.120.0070.04212.66
5.3.110.0090.04612.66
5.3.100.0050.04112.14
5.3.90.0070.03612.13
5.3.80.0060.03612.11
5.3.70.0070.03512.11
5.3.60.0070.03512.10
5.3.50.0060.03612.04
5.3.40.0040.03712.04
5.3.30.0070.03212.00
5.3.20.0060.03511.79
5.3.10.0070.03311.75
5.3.00.0070.03511.74
5.2.170.0040.0309.24
5.2.160.0050.0279.24
5.2.150.0050.0309.24
5.2.140.0040.0309.23
5.2.130.0030.0349.19
5.2.120.0060.0299.19
5.2.110.0040.0319.20
5.2.100.0050.0289.20
5.2.90.0050.0299.20
5.2.80.0040.0319.19
5.2.70.0050.0299.19
5.2.60.0040.0309.14
5.2.50.0030.0319.12
5.2.40.0040.0309.09
5.2.30.0040.0309.07
5.2.20.0050.0289.06
5.2.10.0070.0268.96
5.2.00.0050.0348.83
5.1.60.0030.0258.11
5.1.50.0050.0238.11
5.1.40.0040.0248.09
5.1.30.0050.0258.44
5.1.20.0050.0268.46
5.1.10.0030.0278.19
5.1.00.0040.0278.18
5.0.50.0020.0236.66
5.0.40.0030.0206.53
5.0.30.0040.0346.33
5.0.20.0040.0196.30
5.0.10.0050.0186.28
5.0.00.0040.0306.28
4.4.90.0040.0144.78
4.4.80.0020.0164.75
4.4.70.0030.0164.76
4.4.60.0030.0164.75
4.4.50.0020.0164.77
4.4.40.0020.0254.71
4.4.30.0020.0174.76
4.4.20.0040.0164.84
4.4.10.0030.0154.85
4.4.00.0020.0254.76
4.3.110.0020.0164.67
4.3.100.0020.0154.67
4.3.90.0040.0144.63
4.3.80.0020.0254.58
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0030.0164.63
4.3.40.0040.0224.54
4.3.30.0020.0163.32
4.3.20.0020.0153.30
4.3.10.0030.0183.26
4.3.00.0030.0207.11

preferences:
138.43 ms | 1394 KiB | 7 Q