3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array(); $packed = pack('N', 32767); for ($i=0; $i<strlen($packed); $i++) { $arr[$i] = $packed[$i]; } print_r($arr); /* function pack_encode($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)
8.3.60.0090.00618.43
8.3.50.0120.00522.92
8.3.40.0060.00918.40
8.3.30.0080.00618.91
8.3.20.0000.00720.05
8.3.10.0000.00821.74
8.3.00.0080.00017.50
8.2.180.0140.00716.88
8.2.170.0150.00022.96
8.2.160.0070.00720.32
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0110.00426.16
8.2.120.0000.00821.02
8.2.110.0090.00019.38
8.2.100.0000.01217.78
8.2.90.0000.00919.21
8.2.80.0040.00417.97
8.2.70.0070.00417.63
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0040.00418.13
8.2.20.0000.00817.61
8.2.10.0040.00417.98
8.2.00.0030.00617.68
8.1.280.0080.00625.92
8.1.270.0000.00823.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00721.06
8.1.230.0080.00417.45
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0090.00317.35
8.1.190.0030.00617.23
8.1.180.0040.00418.10
8.1.170.0000.00918.56
8.1.160.0020.00521.94
8.1.150.0000.00718.88
8.1.140.0070.00017.27
8.1.130.0000.00817.39
8.1.120.0000.00717.43
8.1.110.0060.00317.37
8.1.100.0000.00717.45
8.1.90.0000.00717.30
8.1.80.0000.00717.40
8.1.70.0110.00017.41
8.1.60.0040.00417.48
8.1.50.0000.00817.36
8.1.40.0070.00017.41
8.1.30.0000.00917.41
8.1.20.0040.00417.61
8.1.10.0070.00017.53
8.1.00.0080.00017.52
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.30
8.0.270.0000.00817.21
8.0.260.0000.00716.82
8.0.250.0030.00316.91
8.0.240.0030.00316.89
8.0.230.0030.00316.89
8.0.220.0030.00316.72
8.0.210.0000.00716.82
8.0.200.0000.00716.78
8.0.190.0040.00416.96
8.0.180.0040.00416.82
8.0.170.0000.00816.75
8.0.160.0000.00716.93
8.0.150.0000.00716.66
8.0.140.0000.00716.67
8.0.130.0000.00613.31
8.0.120.0040.00416.70
8.0.110.0030.00316.79
8.0.100.0000.00716.68
8.0.90.0050.00216.95
8.0.80.0070.01416.84
8.0.70.0040.00416.90
8.0.60.0050.00216.63
8.0.50.0000.00816.82
8.0.30.0090.01316.93
8.0.20.0080.01217.40
8.0.10.0040.00416.89
8.0.00.0090.00816.86
7.4.330.0050.00015.00
7.4.320.0000.00616.40
7.4.300.0040.00416.54
7.4.290.0070.00016.50
7.4.280.0040.00416.56
7.4.270.0000.00716.54
7.4.260.0050.00616.50
7.4.250.0070.00016.46
7.4.240.0030.00516.46
7.4.230.0000.00716.61
7.4.220.0100.01316.58
7.4.210.0070.00716.57
7.4.200.0030.00316.44
7.4.160.0080.00816.31
7.4.150.0060.01217.40
7.4.140.0080.01117.86
7.4.130.0120.00616.56
7.4.120.0000.01816.50
7.4.110.0110.00516.45
7.4.100.0100.01016.53
7.4.90.0110.00616.37
7.4.80.0120.00619.39
7.4.70.0060.00916.48
7.4.60.0100.00716.46
7.4.50.0040.00416.60
7.4.40.0100.00716.53
7.4.30.0080.00816.57
7.4.00.0060.00614.94
7.3.330.0030.00313.27
7.3.320.0050.00013.17
7.3.310.0030.00316.30
7.3.300.0070.00016.28
7.3.290.0100.00316.38
7.3.280.0090.00816.33
7.3.270.0060.01017.40
7.3.260.0120.00416.39
7.3.250.0090.00816.30
7.3.240.0100.00716.61
7.3.230.0100.00716.39
7.3.210.0030.01316.19
7.3.200.0040.01219.39
7.3.190.0100.00616.41
7.3.180.0000.01616.36
7.3.170.0000.01616.42
7.3.160.0090.01416.31
7.3.10.0060.00716.73
7.3.00.0060.00316.84
7.2.330.0140.00416.60
7.2.320.0060.01016.41
7.2.310.0130.01016.82
7.2.300.0060.00916.65
7.2.290.0060.01516.45
7.2.130.0060.01016.96
7.2.120.0030.01016.78
7.2.110.0040.01116.84
7.2.100.0140.00316.84
7.2.90.0060.00916.92
7.2.80.0040.01216.74
7.2.70.0030.00916.86
7.2.60.0030.01217.08
7.2.50.0100.00317.05
7.2.40.0100.00717.13
7.2.30.0060.00617.00
7.2.20.0060.00917.17
7.2.10.0060.00616.94
7.2.00.0100.00318.17
7.1.250.0060.00615.91
7.1.100.0060.01218.12
7.1.70.0000.00917.25
7.1.60.0040.01919.40
7.1.50.0080.00416.70
7.1.00.0100.06722.35
7.0.200.0000.00816.58
7.0.140.0030.07321.92
7.0.60.0130.07719.92
7.0.50.0100.06017.75
7.0.40.0130.09020.13
7.0.30.0270.05020.27
7.0.20.0330.08020.07
7.0.10.0070.08720.06
7.0.00.0070.06320.20
5.6.280.0130.06021.10
5.6.210.0170.07020.71
5.6.200.0070.06018.19
5.6.190.0030.04720.64
5.6.180.0170.04020.65
5.6.170.0100.04020.51
5.6.160.0070.05320.54
5.6.150.0030.05718.27
5.6.140.0070.03718.18
5.6.130.0070.06718.28
5.6.120.0070.08321.01
5.6.110.0000.09720.97
5.6.100.0000.06721.02
5.6.90.0130.05020.99
5.6.80.0100.04720.40
5.5.350.0300.07020.29
5.5.340.0070.07017.95
5.5.330.0030.04320.42
5.5.320.0300.07720.23
5.5.310.0330.04020.27
5.5.300.0030.08717.99
5.5.290.0070.06718.07
5.5.280.0170.08020.97
5.5.270.0070.04720.77
5.5.260.0100.08320.86
5.5.250.0130.07720.46
5.5.240.0070.07320.28
5.4.450.0770.05719.60
5.4.440.0830.04719.43
5.4.430.0830.05319.21
5.4.420.0470.05319.55
5.4.410.0070.05319.32
5.4.400.0430.05318.71
5.4.390.0370.06718.53
5.4.380.0100.05718.70
5.4.370.0100.05718.82
5.4.360.0100.05018.79
5.4.350.0130.05212.00
5.4.340.0070.04912.00
5.4.320.0080.03412.48
5.4.310.0050.03912.48
5.4.300.0040.03812.48
5.4.290.0050.03912.48
5.4.280.0020.03812.38
5.4.270.0050.03712.38
5.4.260.0070.03612.38
5.4.250.0110.03912.38
5.4.240.0040.03912.38
5.4.230.0050.04012.37
5.4.220.0060.03512.37
5.4.210.0080.03312.37
5.4.200.0040.04012.37
5.4.190.0050.03712.36
5.4.180.0070.03512.36
5.4.170.0060.03712.38
5.4.160.0050.03712.38
5.4.150.0070.03512.37
5.4.140.0050.03812.05
5.4.130.0110.03612.04
5.4.120.0030.04212.00
5.4.110.0060.03712.00
5.4.100.0070.03711.99
5.4.90.0090.04411.99
5.4.80.0070.03511.99
5.4.70.0060.03911.99
5.4.60.0150.05611.99
5.4.50.0080.05911.98
5.4.40.0090.05311.98
5.4.30.0090.03711.98
5.4.20.0070.03911.97
5.4.10.0070.04111.97
5.4.00.0050.03711.47
5.3.290.0040.04112.80
5.3.280.0050.03812.71
5.3.270.0040.04012.72
5.3.260.0050.04012.72
5.3.250.0080.03512.71
5.3.240.0040.03912.72
5.3.230.0060.03712.71
5.3.220.0060.03712.68
5.3.210.0060.03912.68
5.3.200.0040.03812.68
5.3.190.0040.04112.68
5.3.180.0060.03712.67
5.3.170.0060.03712.67
5.3.160.0050.04112.67
5.3.150.0050.03912.67
5.3.140.0090.03312.66
5.3.130.0080.03712.66
5.3.120.0050.04612.66
5.3.110.0040.04112.66
5.3.100.0050.04112.12
5.3.90.0060.03812.09
5.3.80.0090.04612.08
5.3.70.0100.04612.08
5.3.60.0060.04512.06
5.3.50.0070.03812.01
5.3.40.0070.03712.01
5.3.30.0070.05011.97
5.3.20.0060.05011.75
5.3.10.0110.03511.72
5.3.00.0070.04011.70
5.2.170.0060.0349.21
5.2.160.0020.0329.20
5.2.150.0060.0419.21
5.2.140.0070.0409.20
5.2.130.0030.0349.16
5.2.120.0070.0309.16
5.2.110.0080.0359.16
5.2.100.0080.0309.16
5.2.90.0050.0309.17
5.2.80.0060.0309.16
5.2.70.0060.0299.16
5.2.60.0050.0309.11
5.2.50.0120.0679.09
5.2.40.0100.0289.06
5.2.30.0060.0309.04
5.2.20.0080.0269.02
5.2.10.0040.0298.93
5.2.00.0030.0308.79
5.1.60.0030.0258.06
5.1.50.0050.0258.06
5.1.40.0080.0348.04
5.1.30.0110.0298.39
5.1.20.0060.0318.41
5.1.10.0060.0298.14
5.1.00.0040.0268.14
5.0.50.0030.0226.61
5.0.40.0070.0176.48
5.0.30.0060.0306.29
5.0.20.0020.0226.26
5.0.10.0070.0246.24
5.0.00.0040.0336.23
4.4.90.0040.0234.78
4.4.80.0010.0194.76
4.4.70.0010.0244.76
4.4.60.0060.0174.75
4.4.50.0020.0204.77
4.4.40.0050.0334.71
4.4.30.0030.0224.76
4.4.20.0050.0214.84
4.4.10.0030.0184.85
4.4.00.0050.0314.76
4.3.110.0020.0244.67
4.3.100.0010.0184.66
4.3.90.0020.0164.64
4.3.80.0020.0264.59
4.3.70.0070.0184.63
4.3.60.0030.0204.63
4.3.50.0050.0144.63
4.3.40.0040.0244.54
4.3.30.0020.0173.29
4.3.20.0030.0153.25
4.3.10.0030.0213.22
4.3.00.0100.0237.20

preferences:
32.91 ms | 401 KiB | 5 Q