3v4l.org

run code in 300+ PHP versions simultaneously
<?php function pack_encode($format, $val) { $b64 = base64_encode(pack($format, $val)); return str_replace(array('/', '='), array('_', ''), $b64); // "/" json-encodes poorly and "=" is padding } function pack_decode($format, $width, $bin) { $b64 = str_replace('_', '/', $bin); // un-padded $data = array();//unpack($format, base64_decode($b64, false)); $val = 0; foreach ($data as $v) { $val = ($val<<$width) | $v; } return $val; } function pack_encode_uint16($val) { return pack_encode('n', $val); } function pack_encode_uint32($val) { return pack_encode('N', $val); } function pack_decode_uint16($val) { return pack_decode('n', 16, $val); } function pack_decode_uint32($val) { return pack_decode('N', 32, $val); } $max = 32767; $n = 20; $step = intval($max/$n); for ($i=0; $i<=$n; $i++) { $val = $i*$step; $enc16 = pack_encode_uint16($val); $enc32 = pack_encode_uint32($val); $str = base64_encode(strval($val)); // STUPID echo "$enc16 $enc32 $str $val"; $dec16 = pack_decode_uint16($enc16); $dec32 = pack_decode_uint32($enc32); if ($dec16 != $val) { echo " $dec16 != $val"; } else if ($dec32 != $val) { echo " $dec32 != $val"; } echo "\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)
8.3.60.0140.00018.18
8.3.50.0130.00622.93
8.3.40.0040.01118.73
8.3.30.0140.00018.79
8.3.20.0070.00019.99
8.3.10.0050.00321.90
8.3.00.0030.00517.50
8.2.180.0120.00616.38
8.2.170.0040.01122.96
8.2.160.0090.00620.39
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0080.00021.05
8.2.110.0070.00320.93
8.2.100.0040.00717.78
8.2.90.0040.00419.05
8.2.80.0040.00417.97
8.2.70.0040.00817.63
8.2.60.0090.00017.93
8.2.50.0000.00818.10
8.2.40.0030.00718.22
8.2.30.0000.00718.14
8.2.20.0030.00617.61
8.2.10.0030.00518.14
8.2.00.0060.00317.67
8.1.280.0110.00425.92
8.1.270.0080.00023.97
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00721.30
8.1.230.0040.00817.83
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0060.00317.22
8.1.190.0030.00517.23
8.1.180.0040.00418.10
8.1.170.0030.00518.59
8.1.160.0050.00322.03
8.1.150.0050.00218.90
8.1.140.0040.00417.48
8.1.130.0070.00017.89
8.1.120.0000.00817.50
8.1.110.0030.00517.52
8.1.100.0030.00317.53
8.1.90.0040.00417.50
8.1.80.0050.00317.44
8.1.70.0030.00417.37
8.1.60.0000.00817.57
8.1.50.0030.00617.44
8.1.40.0030.00617.50
8.1.30.0060.00317.57
8.1.20.0080.00017.56
8.1.10.0080.00017.45
8.1.00.0000.00817.51
8.0.300.0000.00818.77
8.0.290.0060.00316.63
8.0.280.0000.00718.46
8.0.270.0080.00317.27
8.0.260.0000.00617.14
8.0.250.0030.00516.96
8.0.240.0000.00716.97
8.0.230.0030.00316.90
8.0.220.0030.00316.91
8.0.210.0050.00316.91
8.0.200.0030.00316.95
8.0.190.0000.00716.97
8.0.180.0040.00416.86
8.0.170.0040.00416.94
8.0.160.0040.00417.03
8.0.150.0000.00716.98
8.0.140.0040.00416.83
8.0.130.0030.00313.37
8.0.120.0040.00416.83
8.0.110.0000.00816.91
8.0.100.0000.00716.93
8.0.90.0040.00416.75
8.0.80.0100.01016.87
8.0.70.0030.00516.81
8.0.60.0000.00716.76
8.0.50.0080.00016.70
8.0.30.0160.00316.97
8.0.20.0100.01217.40
8.0.10.0040.00416.91
8.0.00.0140.00516.71
7.4.330.0000.00615.00
7.4.320.0000.00716.52
7.4.300.0000.00616.51
7.4.290.0030.00516.65
7.4.280.0000.00716.54
7.4.270.0040.00416.64
7.4.260.0000.00716.59
7.4.250.0050.00216.47
7.4.240.0020.00616.57
7.4.230.0000.00716.59
7.4.220.0030.01516.55
7.4.210.0110.00316.44
7.4.200.0030.00316.40
7.4.160.0040.01316.70
7.4.150.0220.00317.40
7.4.140.0090.01417.86
7.4.130.0110.00816.58
7.4.120.0070.01216.51
7.4.110.0100.00616.56
7.4.100.0110.00716.46
7.4.90.0060.01216.57
7.4.80.0090.01319.39
7.4.70.0090.01216.45
7.4.60.0130.00916.36
7.4.50.0000.00916.61
7.4.40.0110.00716.45
7.4.30.0080.00816.49
7.4.00.0000.01114.82
7.3.330.0000.00513.45
7.3.320.0020.00213.19
7.3.310.0000.00716.38
7.3.300.0030.00316.41
7.3.290.0090.00616.34
7.3.280.0100.00816.40
7.3.270.0170.00017.40
7.3.260.0140.00316.42
7.3.250.0100.01116.52
7.3.240.0190.00316.68
7.3.230.0070.01716.43
7.3.210.0100.00716.62
7.3.200.0110.01119.39
7.3.190.0110.01116.48
7.3.180.0060.01216.66
7.3.170.0160.00016.68
7.3.160.0050.01416.45
7.3.10.0090.00616.59
7.3.00.0190.01016.10
7.2.330.0120.01216.77
7.2.320.0060.01216.79
7.2.310.0080.00816.61
7.2.300.0100.00616.79
7.2.290.0000.02216.43
7.2.130.0120.00816.30
7.2.120.0070.01016.23
7.2.110.0060.00916.05
7.2.100.0090.01216.39
7.2.90.0070.01016.41
7.2.80.0240.00916.78
7.2.70.0150.00816.42
7.2.60.0070.01016.52
7.2.50.0420.00016.41
7.2.40.0200.00716.51
7.2.30.0080.01216.52
7.2.20.0100.00816.64
7.2.10.0100.01016.60
7.2.00.0100.00618.21
7.1.250.0270.00015.50
7.1.200.0000.01415.75
7.1.100.0030.01218.07
7.1.70.0000.01017.19
7.1.60.0100.01419.40
7.1.50.0060.00917.05
7.1.00.0030.07722.33
7.0.200.0000.00816.77
7.0.140.0030.07722.04
7.0.60.0030.06319.96
7.0.50.0030.05317.89
7.0.40.0170.06020.26
7.0.30.0330.07720.07
7.0.20.0270.04320.05
7.0.10.0070.04320.30
7.0.00.0030.06020.05
5.6.280.0000.07721.14
5.6.210.0030.08320.48
5.6.200.0100.08318.19
5.6.190.0030.05320.34
5.6.180.0230.08020.61
5.6.170.0270.07020.51
5.6.160.0070.06720.39
5.6.150.0030.08318.22
5.6.140.0000.04718.18
5.6.130.0030.05718.24
5.6.120.0030.07321.15
5.6.110.0100.08320.89
5.6.100.0030.05721.14
5.6.90.0070.09021.11
5.6.80.0100.07320.39
5.5.350.0230.07320.34
5.5.340.0170.07317.93
5.5.330.0030.04720.31
5.5.320.0130.05020.35
5.5.310.0270.04720.42
5.5.300.0070.08017.98
5.5.290.0030.04317.98
5.5.280.0100.08020.86
5.5.270.0100.08320.98
5.5.260.0070.06020.82
5.5.250.0030.08720.47
5.5.240.0070.06320.17
5.4.450.0670.05719.46
5.4.440.0700.06719.61
5.4.430.0770.06019.20
5.4.420.0830.05319.23
5.4.410.0730.04019.09
5.4.400.0830.05019.30
5.4.390.0770.05318.96
5.4.380.0070.06018.77
5.4.370.0830.04318.50
5.4.360.0430.05318.55
5.4.350.0060.03912.03
5.4.340.0070.04612.03
5.4.320.0050.05112.52
5.4.310.0060.03912.51
5.4.300.0090.03912.51
5.4.290.0110.03412.52
5.4.280.0090.03112.41
5.4.270.0040.03812.41
5.4.260.0090.03512.41
5.4.250.0040.04012.41
5.4.240.0050.03712.41
5.4.230.0060.03812.40
5.4.220.0070.03612.40
5.4.210.0070.03612.40
5.4.200.0090.03512.40
5.4.190.0070.03612.40
5.4.180.0080.03412.39
5.4.170.0100.03412.41
5.4.160.0050.03712.41
5.4.150.0080.03412.40
5.4.140.0070.04112.09
5.4.130.0080.04112.07
5.4.120.0030.05612.03
5.4.110.0100.04912.03
5.4.100.0060.05012.02
5.4.90.0060.04212.02
5.4.80.0050.03912.03
5.4.70.0090.04112.03
5.4.60.0030.03912.02
5.4.50.0050.03712.02
5.4.40.0040.03612.01
5.4.30.0070.03412.00
5.4.20.0070.04212.00
5.4.10.0070.03712.00
5.4.00.0060.03711.49
5.3.290.0120.03912.80
5.3.280.0060.03812.71
5.3.270.0050.04012.73
5.3.260.0080.03812.72
5.3.250.0060.04312.72
5.3.240.0050.04912.72
5.3.230.0100.04612.71
5.3.220.0060.03912.68
5.3.210.0060.04112.68
5.3.200.0060.03712.68
5.3.190.0040.05112.68
5.3.180.0070.03512.68
5.3.170.0080.03412.67
5.3.160.0080.03512.67
5.3.150.0080.03612.68
5.3.140.0060.03712.66
5.3.130.0050.03912.66
5.3.120.0090.03512.65
5.3.110.0070.03912.66
5.3.100.0070.03612.13
5.3.90.0040.03812.11
5.3.80.0060.03612.10
5.3.70.0050.03812.11
5.3.60.0100.03512.09
5.3.50.0080.04512.04
5.3.40.0060.03612.04
5.3.30.0040.03612.00
5.3.20.0040.03611.78
5.3.10.0050.03611.74
5.3.00.0080.03411.73
5.2.170.0070.0289.24
5.2.160.0020.0379.24
5.2.150.0030.0329.24
5.2.140.0050.0309.24
5.2.130.0030.0309.20
5.2.120.0080.0259.20
5.2.110.0070.0309.21
5.2.100.0040.0439.20
5.2.90.0080.0269.20
5.2.80.0030.0339.20
5.2.70.0060.0429.19
5.2.60.0070.0289.15
5.2.50.0040.0309.12
5.2.40.0060.0389.09
5.2.30.0050.0299.07
5.2.20.0050.0299.05
5.2.10.0060.0318.96
5.2.00.0020.0328.82
5.1.60.0070.0338.11
5.1.50.0060.0248.11
5.1.40.0040.0248.09
5.1.30.0020.0408.45
5.1.20.0060.0358.46
5.1.10.0040.0298.19
5.1.00.0050.0258.19
5.0.50.0020.0236.67
5.0.40.0030.0206.54
5.0.30.0060.0296.34
5.0.20.0060.0176.31
5.0.10.0080.0226.29
5.0.00.0030.0326.29
4.4.90.0020.0184.78
4.4.80.0020.0194.75
4.4.70.0010.0184.75
4.4.60.0050.0144.76
4.4.50.0030.0234.77
4.4.40.0040.0264.71
4.4.30.0030.0154.76
4.4.20.0040.0224.84
4.4.10.0020.0244.85
4.4.00.0030.0254.76
4.3.110.0030.0164.67
4.3.100.0020.0164.67
4.3.90.0020.0154.63
4.3.80.0050.0224.59
4.3.70.0060.0124.63
4.3.60.0030.0224.63
4.3.50.0030.0224.63
4.3.40.0020.0274.54
4.3.30.0040.0163.32
4.3.20.0020.0233.30
4.3.10.0020.0173.26
4.3.00.0170.0207.13

preferences:
49.64 ms | 400 KiB | 5 Q