3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r(base64_encode(pack('C', 512))); /* function pack_encode($val) { $b64 = base64_encode(pack($format, $val)); return str_replace(array('/', '='), array('_', ''), $b64); // "/" json-encodes poorly and "=" is padding } function pack_decode($bin) { $b64 = str_replace('_', '/', $bin); // un-padded $data = unpack('C'.(length($bin)/2), base64_decode($b64, false)); $val = 0; foreach ($data as $v) { $val = ($val<<$width) | $v; } return $val; } $max = 32767; $n = 20; $step = intval($max/$n); for ($i=0; $i<=$n; $i++) { $val = $i*$step; $enc = pack_encode($val); $dec = pack_decode($val); echo "$enc $dec $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)
8.3.40.0090.00618.53
8.3.30.0060.00818.78
8.3.20.0040.00420.14
8.3.10.0050.00321.63
8.3.00.0040.00417.38
8.2.170.0110.00322.96
8.2.160.0030.01020.39
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0090.00926.16
8.2.120.0060.00321.08
8.2.110.0030.00720.23
8.2.100.0040.00817.79
8.2.90.0030.00517.91
8.2.80.0000.00717.97
8.2.70.0060.00317.38
8.2.60.0000.00817.68
8.2.50.0000.00818.07
8.2.40.0040.00418.09
8.2.30.0000.00717.98
8.2.20.0040.00417.43
8.2.10.0090.00017.94
8.2.00.0040.00417.43
8.1.270.0030.01023.99
8.1.260.0050.00226.35
8.1.250.0030.01328.09
8.1.240.0060.00322.14
8.1.230.0030.00720.91
8.1.220.0000.00817.74
8.1.210.0080.00018.85
8.1.200.0030.00617.10
8.1.190.0030.00516.88
8.1.180.0000.00818.10
8.1.170.0030.00518.41
8.1.160.0040.00421.95
8.1.150.0040.00418.75
8.1.140.0040.00417.34
8.1.130.0050.00317.68
8.1.120.0000.00817.34
8.1.110.0040.00417.39
8.1.100.0030.00317.37
8.1.90.0000.00817.36
8.1.80.0070.00017.23
8.1.70.0040.00817.31
8.1.60.0050.00217.48
8.1.50.0050.00317.29
8.1.40.0080.00017.31
8.1.30.0030.00617.53
8.1.20.0040.00417.53
8.1.10.0000.00717.31
8.1.00.0000.00817.32
8.0.300.0000.00720.10
8.0.290.0000.00816.63
8.0.280.0050.00318.24
8.0.270.0040.00417.06
8.0.260.0000.00617.04
8.0.250.0030.00316.74
8.0.240.0040.00416.80
8.0.230.0070.00016.64
8.0.220.0050.00216.75
8.0.210.0080.00016.73
8.0.200.0060.00016.81
8.0.190.0040.00416.74
8.0.180.0030.00316.79
8.0.170.0000.00816.68
8.0.160.0000.00716.71
8.0.150.0030.00316.61
8.0.140.0040.00416.76
8.0.130.0030.00313.14
8.0.120.0030.00616.66
8.0.110.0040.00416.68
8.0.100.0040.00416.77
8.0.90.0050.00316.60
8.0.80.0090.00916.78
8.0.70.0000.00716.73
8.0.60.0070.00016.59
8.0.50.0000.00816.79
8.0.30.0130.00616.91
8.0.20.0120.00617.40
8.0.10.0040.00416.75
8.0.00.0110.00716.57
7.4.330.0030.00315.00
7.4.320.0060.00016.36
7.4.300.0030.00316.43
7.4.290.0040.00416.34
7.4.280.0030.00516.38
7.4.270.0000.00816.39
7.4.260.0030.00316.31
7.4.250.0070.00016.44
7.4.240.0070.00016.37
7.4.230.0030.00316.52
7.4.220.0160.01016.30
7.4.210.0100.00316.34
7.4.200.0030.00316.35
7.4.160.0110.00616.33
7.4.150.0130.01017.40
7.4.140.0120.00717.86
7.4.130.0100.00716.32
7.4.120.0110.00616.22
7.4.110.0070.01016.21
7.4.100.0000.01916.17
7.4.90.0110.00716.49
7.4.80.0090.01219.39
7.4.70.0100.00716.39
7.4.60.0060.01016.37
7.4.50.0000.00716.13
7.4.40.0060.01116.27
7.4.30.0080.00816.45
7.4.00.0040.00714.88
7.3.330.0030.00312.87
7.3.320.0050.00013.11
7.3.310.0000.00716.22
7.3.300.0000.00716.07
7.3.290.0040.01416.10
7.3.280.0080.01016.12
7.3.270.0130.00317.40
7.3.260.0080.00816.34
7.3.250.0110.00916.14
7.3.240.0110.00916.36
7.3.230.0190.00016.39
7.3.210.0070.01016.20
7.3.200.0110.00619.39
7.3.190.0100.00616.14
7.3.180.0040.01216.23
7.3.170.0130.00316.27
7.3.160.0040.01416.37
7.3.10.0030.00916.68
7.3.00.0040.00816.32
7.2.330.0090.00916.31
7.2.320.0070.01016.40
7.2.310.0080.00816.65
7.2.300.0130.00616.49
7.2.290.0060.01016.45
7.2.130.0030.01016.27
7.2.120.0030.00916.76
7.2.110.0030.00916.29
7.2.100.0050.00516.39
7.2.90.0060.00316.21
7.2.80.0040.00416.49
7.2.70.0100.00016.50
7.2.60.0030.00616.73
7.2.50.0070.00816.14
7.2.40.0040.00716.57
7.2.30.0060.00916.60
7.2.20.0120.00616.57
7.2.10.0030.01016.36
7.2.00.0160.00416.77
7.1.250.0000.00715.50
7.1.100.0030.01018.00
7.1.70.0040.00416.73
7.1.60.0070.01719.40
7.1.50.0040.01116.76
7.1.00.0070.07322.36
7.0.200.0000.00716.29
7.0.140.0000.07022.12
7.0.60.0130.08320.07
7.0.50.0070.08017.91
7.0.40.0000.04720.02
7.0.30.0170.05020.18
7.0.20.0370.04320.09
7.0.10.0300.07020.18
7.0.00.0070.06020.18
5.6.280.0070.07021.06
5.6.210.0100.06720.62
5.6.200.0100.05018.12
5.6.190.0030.05320.41
5.6.180.0330.08020.60
5.6.170.0170.04320.38
5.6.160.0000.04720.37
5.6.150.0100.07018.09
5.6.140.0170.07018.13
5.6.130.0070.06318.10
5.6.120.0070.08721.14
5.6.110.0100.08321.11
5.6.100.0200.04721.10
5.6.90.0030.07320.95
5.6.80.0070.04020.52
5.6.70.0330.06320.42
5.5.350.0100.07320.38
5.5.340.0030.04717.99
5.5.330.0030.08020.56
5.5.320.0300.07020.34
5.5.310.0200.07320.29
5.5.300.0070.08017.87
5.5.290.0000.04317.94
5.5.280.0030.07320.77
5.5.270.0200.03720.86
5.5.260.0030.08720.75
5.5.250.0100.03320.45
5.5.240.0030.08020.23
5.4.450.0830.07319.62
5.4.440.0300.04719.66
5.4.430.0230.04719.55
5.4.420.0300.04319.25
5.4.410.0200.05319.41
5.4.400.0170.05019.22
5.4.390.0100.06018.86
5.4.380.0230.06718.64
5.4.370.0200.03318.60
5.4.360.0130.05318.64
5.4.350.0100.06011.97
5.4.340.0050.03611.97
5.4.320.0070.04212.45
5.4.310.0090.03612.45
5.4.300.0070.03712.46
5.4.290.0040.04012.45
5.4.280.0060.03512.34
5.4.270.0080.03612.34
5.4.260.0100.04312.35
5.4.250.0070.05212.34
5.4.240.0060.04312.35
5.4.230.0070.03812.34
5.4.220.0050.03812.34
5.4.210.0070.03512.34
5.4.200.0070.03712.34
5.4.190.0070.03512.34
5.4.180.0060.03612.33
5.4.170.0040.03812.35
5.4.160.0040.03812.34
5.4.150.0040.04012.34
5.4.140.0070.04712.02
5.4.130.0040.04012.01
5.4.120.0070.03611.97
5.4.110.0040.03911.96
5.4.100.0070.03611.96
5.4.90.0080.04611.96
5.4.80.0040.04711.96
5.4.70.0020.04011.96
5.4.60.0080.03311.96
5.4.50.0080.03511.96
5.4.40.0060.03611.95
5.4.30.0070.03611.95
5.4.20.0060.03611.95
5.4.10.0090.04211.95
5.4.00.0100.03911.44
5.3.290.0080.03712.80
5.3.280.0070.03812.71
5.3.270.0060.04412.72
5.3.260.0040.04012.72
5.3.250.0060.03812.72
5.3.240.0090.04312.72
5.3.230.0080.03712.71
5.3.220.0080.03712.68
5.3.210.0110.03612.68
5.3.200.0050.03812.68
5.3.190.0050.03912.67
5.3.180.0060.03612.68
5.3.170.0090.03412.67
5.3.160.0080.03612.67
5.3.150.0070.03812.67
5.3.140.0070.04512.66
5.3.130.0080.05112.66
5.3.120.0050.04212.65
5.3.110.0060.04212.66
5.3.100.0110.04412.12
5.3.90.0100.05412.08
5.3.80.0080.03712.07
5.3.70.0080.03812.07
5.3.60.0050.03912.07
5.3.50.0100.03812.00
5.3.40.0080.03712.00
5.3.30.0080.04111.94
5.3.20.0100.03411.72
5.3.10.0070.03411.69
5.3.00.0090.03311.68
5.2.170.0030.0329.18
5.2.160.0070.0269.17
5.2.150.0010.0349.18
5.2.140.0050.0319.17
5.2.130.0050.0299.14
5.2.120.0020.0319.13
5.2.110.0040.0359.14
5.2.100.0040.0319.13
5.2.90.0040.0309.13
5.2.80.0030.0339.13
5.2.70.0050.0319.13
5.2.60.0050.0309.09
5.2.50.0050.0369.05
5.2.40.0070.0279.03
5.2.30.0040.0329.00
5.2.20.0040.0299.00
5.2.10.0040.0288.91
5.2.00.0040.0298.77
5.1.60.0050.0348.06
5.1.50.0060.0338.06
5.1.40.0050.0358.04
5.1.30.0090.0238.39
5.1.20.0040.0288.41
5.1.10.0050.0358.13
5.1.00.0050.0278.14
5.0.50.0020.0226.61
5.0.40.0040.0196.47
5.0.30.0040.0316.28
5.0.20.0030.0196.25
5.0.10.0030.0206.24
5.0.00.0040.0306.23
4.4.90.0060.0204.78
4.4.80.0060.0264.75
4.4.70.0040.0194.76
4.4.60.0060.0184.75
4.4.50.0040.0194.77
4.4.40.0060.0324.71
4.4.30.0080.0174.75
4.4.20.0100.0384.84
4.4.10.0030.0224.85
4.4.00.0040.0384.75
4.3.110.0100.0404.67
4.3.100.0080.0434.66
4.3.90.0020.0224.64
4.3.80.0020.0264.59
4.3.70.0030.0144.63
4.3.60.0040.0144.63
4.3.50.0010.0174.63
4.3.40.0040.0304.54
4.3.30.0020.0223.28
4.3.20.0010.0233.26
4.3.10.0030.0163.22
4.3.00.0130.0207.16

preferences:
41.66 ms | 400 KiB | 5 Q