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; } $vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000 4294967295, 4294967296); foreach ($vals as $val) { $enc = gdr_encode($val); $dec = gdr_decode($enc); if ($val === $dec) { echo "$enc $val\n"; } else { echo "$enc $valĀ ERROR: gdr_decode($enc) == $dec\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)
5.4.310.0100.03612.52
5.4.300.0070.03812.52
5.4.290.0080.03912.52
5.4.280.0080.04012.42
5.4.270.0070.03612.41
5.4.260.0080.03912.41
5.4.250.0080.03912.41
5.4.240.0060.05012.42
5.4.230.0040.04412.41
5.4.220.0070.04212.41
5.4.210.0090.03812.41
5.4.200.0090.04012.41
5.4.190.0090.04012.41
5.4.180.0080.04012.41
5.4.170.0120.03512.41
5.4.160.0090.03312.41
5.4.150.0040.04012.40
5.4.140.0050.04112.09
5.4.130.0040.03912.07
5.4.120.0090.04812.04
5.4.110.0080.05112.04
5.4.100.0110.04612.03
5.4.90.0050.05012.03
5.4.80.0080.05512.03
5.4.70.0100.04812.03
5.4.60.0110.05612.03
5.4.50.0070.03812.03
5.4.40.0080.03312.02
5.4.30.0070.04212.02
5.4.20.0030.03912.01
5.4.10.0060.03512.01
5.4.00.0040.03811.51
5.3.290.0060.04512.80
5.3.280.0060.03812.71
5.3.270.0070.03912.72
5.3.260.0070.04212.72
5.3.250.0110.03412.72
5.3.240.0070.04412.72
5.3.230.0080.03812.71
5.3.220.0050.04812.68
5.3.210.0040.04312.68
5.3.200.0090.03612.68
5.3.190.0040.04112.67
5.3.180.0100.03412.67
5.3.170.0060.04112.66
5.3.160.0040.04012.67
5.3.150.0060.03712.68
5.3.140.0130.04112.66
5.3.130.0070.04012.66
5.3.120.0050.04112.66
5.3.110.0080.03712.66
5.3.100.0050.04112.13
5.3.90.0060.03912.11
5.3.80.0060.03912.10
5.3.70.0060.04612.10
5.3.60.0100.04812.09
5.3.50.0110.03912.04
5.3.40.0090.03912.03
5.3.30.0090.03911.99
5.3.20.0020.04011.78
5.3.10.0060.03411.74
5.3.00.0050.03711.72
5.2.170.0050.0319.23
5.2.160.0070.0309.23
5.2.150.0030.0319.23
5.2.140.0040.0319.22
5.2.130.0050.0299.19
5.2.120.0050.0289.18
5.2.110.0060.0389.19
5.2.100.0070.0379.19
5.2.90.0030.0329.19
5.2.80.0040.0309.18
5.2.70.0020.0339.18
5.2.60.0040.0319.14
5.2.50.0060.0299.11
5.2.40.0050.0299.08
5.2.30.0070.0289.06
5.2.20.0050.0299.05
5.2.10.0060.0288.96
5.2.00.0060.0378.82
5.1.60.0040.0258.09
5.1.50.0080.0268.09
5.1.40.0040.0348.07
5.1.30.0050.0388.43
5.1.20.0120.0348.45
5.1.10.0100.0388.17
5.1.00.0080.0458.17
5.0.50.0070.0296.66
5.0.40.0100.0346.52
5.0.30.0050.0446.32
5.0.20.0060.0266.29
5.0.10.0030.0236.27
5.0.00.0050.0336.27
4.4.90.0060.0224.78
4.4.80.0030.0174.76
4.4.70.0040.0164.75
4.4.60.0030.0174.75
4.4.50.0030.0164.77
4.4.40.0040.0254.71
4.4.30.0010.0184.75
4.4.20.0020.0174.84
4.4.10.0040.0154.85
4.4.00.0020.0264.76
4.3.110.0030.0164.67
4.3.100.0030.0164.66
4.3.90.0040.0144.64
4.3.80.0030.0254.58
4.3.70.0050.0134.63
4.3.60.0030.0204.63
4.3.50.0020.0174.62
4.3.40.0020.0254.54
4.3.30.0020.0163.31
4.3.20.0020.0163.30
4.3.10.0050.0143.25
4.3.00.0130.0206.95

preferences:
162.85 ms | 1394 KiB | 7 Q