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 $val; } // seed rng for consistent values if (phpversion() < '5.2.1') { die('old rng'); } mt_srand(42); for ($i=0; $i<63; $i++) { $val = 1<<$i; $val += mt_rand(0, $val/2); $enc = gdr_encode($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)
7.2.00.0080.00819.44
7.1.70.0000.00817.29
7.1.60.0110.01519.40
7.1.50.0100.01416.92
7.1.00.0030.07322.40
7.0.200.0000.00716.47
7.0.140.0070.07322.18
7.0.60.0030.06320.04
7.0.50.0130.07317.89
7.0.40.0000.09320.25
7.0.30.0230.06320.16
7.0.20.0170.05320.05
7.0.10.0400.07320.06
7.0.00.0030.09320.16
5.6.280.0030.07721.11
5.6.210.0070.07720.52
5.6.200.0070.08718.16
5.6.190.0070.04720.34
5.6.180.4300.04020.50
5.6.170.0170.04020.71
5.6.160.0070.08720.49
5.6.150.0070.07718.15
5.6.140.0170.06318.18
5.6.130.0100.03318.27
5.6.120.0000.07321.03
5.6.110.0070.08321.02
5.6.100.0100.08320.94
5.6.90.0100.06721.00
5.6.80.0100.03320.54
5.6.70.0230.05020.39
5.5.350.0370.07020.47
5.5.340.0000.04017.94
5.5.330.0000.05720.21
5.5.320.0430.05720.31
5.5.310.0330.07320.30
5.5.300.0130.06317.95
5.5.290.0030.09017.95
5.5.280.0070.08720.77
5.5.270.0070.04720.77
5.5.260.0070.04020.96
5.5.250.0070.03720.80
5.5.240.3170.03320.25
5.4.450.0930.05719.49
5.4.440.0600.05319.49
5.4.430.0630.05019.66
5.4.420.0830.06719.40
5.4.410.0670.06019.30
5.4.400.0430.04718.77
5.4.390.0370.05718.89
5.4.380.0130.04718.46
5.4.370.0230.04318.82
5.4.360.0130.05018.55
5.4.350.0220.09112.02
5.4.340.0040.03612.02
5.4.320.0050.03812.51
5.4.310.0070.05012.50
5.4.300.0070.03812.51
5.4.290.0060.03912.50
5.4.280.0070.03612.40
5.4.270.0070.03712.40
5.4.260.0080.04612.40
5.4.250.0050.04212.40
5.4.240.0030.04112.40
5.4.230.0060.05412.40
5.4.220.0060.04012.39
5.4.210.0080.03712.39
5.4.200.0060.04012.40
5.4.190.0050.04312.39
5.4.180.0070.03812.39
5.4.170.0090.03412.40
5.4.160.0060.03712.39
5.4.150.0070.03612.39
5.4.140.0070.03812.07
5.4.130.0050.03612.06
5.4.120.0050.04512.02
5.4.110.0060.04012.02
5.4.100.0100.03212.02
5.4.90.0070.03712.02
5.4.80.0060.03812.02
5.4.70.0070.03512.01
5.4.60.0070.03612.01
5.4.50.0070.04712.02
5.4.40.0090.04212.00
5.4.30.0110.03212.00
5.4.20.0060.05312.00
5.4.10.0060.03512.00
5.4.00.0060.04511.48
5.3.290.0090.03812.80
5.3.280.0140.05512.70
5.3.270.0060.04012.72
5.3.260.0070.04012.72
5.3.250.0060.04312.72
5.3.240.0080.04912.72
5.3.230.0070.04512.71
5.3.220.0110.04512.68
5.3.210.0060.04012.68
5.3.200.0110.03212.68
5.3.190.0040.04112.68
5.3.180.0070.03512.67
5.3.170.0090.03612.67
5.3.160.0050.04212.68
5.3.150.0030.04012.67
5.3.140.0050.04112.66
5.3.130.0070.04812.66
5.3.120.0070.03912.66
5.3.110.0080.03712.65
5.3.100.0060.03812.12
5.3.90.0030.03912.11
5.3.80.0100.03912.09
5.3.70.0080.03612.10
5.3.60.0080.03712.07
5.3.50.0080.04812.03
5.3.40.0110.03412.04
5.3.30.0100.03211.99
5.3.20.0020.03911.77
5.3.10.0030.03711.73
5.3.00.0070.03511.72
5.2.170.0050.0319.22
5.2.160.0060.0299.22
5.2.150.0070.0309.22
5.2.140.0070.0419.22
5.2.130.0070.0399.18
5.2.120.0050.0429.18
5.2.110.0040.0359.19
5.2.100.0050.0379.18
5.2.90.0050.0299.18
5.2.80.0030.0329.18
5.2.70.0030.0399.18
5.2.60.0060.0289.13
5.2.50.0080.0279.11
5.2.40.0030.0359.08
5.2.30.0080.0309.05
5.2.20.0030.0309.04
5.2.10.0020.0328.95
5.2.00.0040.0308.82
5.1.60.0040.0248.10
5.1.50.0010.0278.09
5.1.40.0040.0248.08
5.1.30.0040.0268.43
5.1.20.0060.0248.45
5.1.10.0020.0288.17
5.1.00.0040.0268.17
5.0.50.0050.0196.66
5.0.40.0030.0206.52
5.0.30.0030.0326.34
5.0.20.0060.0166.32
5.0.10.0030.0206.30
5.0.00.0040.0306.30
4.4.90.0040.0144.78
4.4.80.0030.0164.75
4.4.70.0030.0154.75
4.4.60.0010.0174.75
4.4.50.0020.0164.77
4.4.40.0040.0324.71
4.4.30.0040.0154.76
4.4.20.0030.0234.84
4.4.10.0050.0214.85
4.4.00.0040.0384.76
4.3.110.0060.0204.67
4.3.100.0030.0224.66
4.3.90.0040.0234.64
4.3.80.0020.0344.59
4.3.70.0040.0264.63
4.3.60.0020.0234.62
4.3.50.0010.0224.63
4.3.40.0030.0274.54
4.3.30.0020.0183.34
4.3.20.0030.0163.32
4.3.10.0010.0163.28
4.3.00.0170.0207.07

preferences:
35.88 ms | 401 KiB | 5 Q