3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { $str = ''; while ($val > 0) { $str .= chr($val & 0xFF); $val >>= 8; } return str_replace(array('/', '='), array('_', ''), base64_encode($str)); } function gdr_decode($str) { $bin = base64_decode(str_replace('_', '/', $str)); $val = 0; for ($i=0; $i<strlen($bin); $i++) { $val |= ord($bin[$i]) << $i*8; } return $val; } mt_srand(42); // seed rng for semi-consistent values for ($i=0; $i<32; $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)
7.4.00.0100.00715.04
7.3.120.0040.01215.13
7.3.110.0070.00714.78
7.3.100.0060.00914.88
7.3.90.0070.01115.12
7.3.80.0030.00615.14
7.3.70.0060.00314.96
7.3.60.0030.01015.06
7.3.50.0060.00614.94
7.3.40.0000.01514.82
7.3.30.0120.00314.81
7.3.20.0030.00916.50
7.3.10.0100.00316.73
7.3.00.0060.00616.49
7.2.250.0100.01015.32
7.2.240.0030.01114.95
7.2.230.0060.01315.33
7.2.220.0000.01115.33
7.2.210.0040.00815.19
7.2.200.0060.00914.95
7.2.190.0050.00515.15
7.2.180.0110.00315.17
7.2.170.0030.01314.98
7.2.00.0040.01219.68
7.1.330.0030.01015.65
7.1.320.0030.00815.44
7.1.310.0070.01016.00
7.1.300.0070.00415.91
7.1.290.0040.01115.62
7.1.280.0040.01115.58
7.1.270.0110.00015.83
7.1.260.0100.00315.72
7.1.70.0070.00017.26
7.1.60.0170.00719.40
7.1.50.0030.01016.69
7.1.00.0030.07722.54
7.0.200.0030.00616.88
7.0.140.0100.07021.92
7.0.60.0000.04319.97
7.0.50.0070.03717.88
7.0.40.0070.04020.05
7.0.30.0130.04720.15
7.0.20.0330.05020.05
7.0.10.0100.04020.17
7.0.00.0100.08020.23
5.6.280.0000.07721.16
5.6.210.0100.05720.65
5.6.200.0170.06318.29
5.6.190.0070.07720.50
5.6.180.0230.07320.46
5.6.170.0230.04720.54
5.6.160.0100.08320.54
5.6.150.0070.08018.16
5.6.140.0100.05318.14
5.6.130.0030.04018.16
5.6.120.0100.08321.00
5.6.110.0070.08321.00
5.6.100.0030.07021.04
5.6.90.0170.05721.00
5.6.80.0130.07720.41
5.5.350.0330.07320.39
5.5.340.0130.07718.09
5.5.330.0200.06020.31
5.5.320.0230.04320.31
5.5.310.0270.08020.34
5.5.300.0030.08017.98
5.5.290.0030.04718.08
5.5.280.0230.06020.97
5.5.270.0070.05720.87
5.5.260.0100.05320.96
5.5.250.0130.07320.57
5.5.240.0030.08020.16
5.4.450.1070.07719.62
5.4.440.0700.05719.43
5.4.430.0600.06019.64
5.4.420.0800.06019.31
5.4.410.0700.04319.45
5.4.400.0370.08318.78
5.4.390.0470.05318.79
5.4.380.0170.05018.67
5.4.370.0130.06718.70
5.4.360.0100.04018.78
5.4.350.0120.06512.03
5.4.340.0070.04112.02
5.4.320.0100.04112.51
5.4.310.0050.04012.51
5.4.300.0060.03612.51
5.4.290.0070.03912.50
5.4.280.0080.03512.40
5.4.270.0060.03712.40
5.4.260.0080.04412.40
5.4.250.0060.05412.40
5.4.240.0050.05112.40
5.4.230.0080.03612.39
5.4.220.0070.03412.39
5.4.210.0080.03312.39
5.4.200.0060.03812.39
5.4.190.0070.03612.39
5.4.180.0090.03512.39
5.4.170.0090.03712.40
5.4.160.0060.05112.39
5.4.150.0050.03812.39
5.4.140.0040.04612.07
5.4.130.0050.03612.07
5.4.120.0040.03812.02
5.4.110.0070.03712.01
5.4.100.0090.03312.02
5.4.90.0040.03912.02
5.4.80.0080.03512.01
5.4.70.0070.03412.01
5.4.60.0040.03712.01
5.4.50.0080.03212.01
5.4.40.0060.03512.00
5.4.30.0030.04011.99
5.4.20.0080.03412.00
5.4.10.0060.03512.00
5.4.00.0050.03911.48
5.3.290.0070.04012.80
5.3.280.0060.04912.71
5.3.270.0140.04812.73
5.3.260.0080.05412.71
5.3.250.0100.04312.72
5.3.240.0090.05312.72
5.3.230.0080.04912.71
5.3.220.0110.03212.68
5.3.210.0090.03712.68
5.3.200.0090.03712.68
5.3.190.0030.04112.68
5.3.180.0070.03612.68
5.3.170.0040.04112.67
5.3.160.0090.03412.67
5.3.150.0070.03612.67
5.3.140.0120.03112.66
5.3.130.0040.04112.66
5.3.120.0040.04112.66
5.3.110.0100.03912.66
5.3.100.0060.03912.13
5.3.90.0060.03712.11
5.3.80.0040.03812.09
5.3.70.0070.03512.10
5.3.60.0040.03812.09
5.3.50.0050.03712.03
5.3.40.0050.03712.03
5.3.30.0050.03611.99
5.3.20.0060.03511.77
5.3.10.0060.03411.73
5.3.00.0040.03911.72
5.2.170.0080.0289.23
5.2.160.0060.0289.23
5.2.150.0050.0349.22
5.2.140.0050.0319.22
5.2.130.0060.0289.18
5.2.120.0060.0289.18
5.2.110.0040.0319.18
5.2.100.0080.0279.19
5.2.90.0030.0319.18
5.2.80.0030.0339.18
5.2.70.0030.0339.18
5.2.60.0070.0299.14
5.2.50.0030.0329.10
5.2.40.0050.0289.08
5.2.30.0040.0309.06
5.2.20.0030.0309.04
5.2.10.0040.0308.95
5.2.00.0060.0298.81
5.1.60.0020.0278.09
5.1.50.0020.0278.09
5.1.40.0050.0248.07
5.1.30.0050.0268.42
5.1.20.0020.0298.45
5.1.10.0040.0288.17
5.1.00.0050.0278.16
5.0.50.0080.0196.65
5.0.40.0080.0176.52
5.0.30.0080.0306.33
5.0.20.0030.0216.30
5.0.10.0060.0186.28
5.0.00.0030.0326.27
4.4.90.0010.0184.78
4.4.80.0040.0154.76
4.4.70.0060.0134.75
4.4.60.0080.0114.75
4.4.50.0010.0174.77
4.4.40.0080.0234.71
4.4.30.0070.0194.76
4.4.20.0050.0154.84
4.4.10.0080.0104.85
4.4.00.0060.0254.76
4.3.110.0070.0194.67
4.3.100.0020.0234.67
4.3.90.0080.0164.63
4.3.80.0040.0244.59
4.3.70.0060.0124.63
4.3.60.0010.0224.63
4.3.50.0010.0184.63
4.3.40.0020.0254.54
4.3.30.0030.0153.32
4.3.20.0030.0163.30
4.3.10.0020.0163.25
4.3.00.0130.0237.11

preferences:
28.85 ms | 400 KiB | 5 Q