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 $data = unpack($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', $val); } function pack_decode_uint16($val) { return pack_decode('n', 16, $val); } function pack_encode_uint32($val) { return pack_encode('N', $val); } function pack_decode_uint32($val) { return pack_decode('N', 32, $val); } function pack_encode_uint64($val) { return pack_encode('NN', $val); } function pack_decode_uint64($val) { return pack_decode('NN', 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); $enc64 = pack_encode_uint64($val); $str = base64_encode(strval($val)); // STUPID echo "$enc16 $enc32 $str $val"; $dec16 = pack_decode_uint16($enc16); $dec32 = pack_decode_uint32($enc32); $dec64 = pack_decode_uint32($enc64); if ($dec16 != $val) { echo " 16($dec16 != $val)"; }if ($dec32 != $val) { echo " 32($dec32 != $val)"; } else if ($dec64 != $val) { echo " 64($dec64 != $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)
8.3.60.0120.00318.55
8.3.50.0060.01022.85
8.3.40.0150.00018.87
8.3.30.0070.00719.12
8.3.20.0000.00720.34
8.3.10.0040.00421.90
8.3.00.0030.00617.59
8.2.180.0070.01416.63
8.2.170.0040.01122.96
8.2.160.0070.01320.32
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00926.16
8.2.120.0040.00418.89
8.2.110.0090.00019.30
8.2.100.0090.00317.84
8.2.90.0030.00517.88
8.2.80.0000.00817.97
8.2.70.0080.00018.03
8.2.60.0040.00417.80
8.2.50.0040.00418.10
8.2.40.0040.00422.15
8.2.30.0080.00017.98
8.2.20.0050.00317.75
8.2.10.0080.00018.08
8.2.00.0040.00417.85
8.1.280.0090.00925.92
8.1.270.0060.00323.97
8.1.260.0070.00026.35
8.1.250.0050.00328.09
8.1.240.0000.00922.13
8.1.230.0040.00823.91
8.1.220.0000.01117.77
8.1.210.0030.00518.77
8.1.200.0120.00017.48
8.1.190.0080.00017.23
8.1.180.0040.00418.10
8.1.170.0000.01018.46
8.1.160.0000.00721.94
8.1.150.0000.00718.91
8.1.140.0000.00717.33
8.1.130.0030.00317.77
8.1.120.0040.00417.33
8.1.110.0000.00717.47
8.1.100.0040.00417.38
8.1.90.0000.00717.52
8.1.80.0000.00717.42
8.1.70.0060.00317.38
8.1.60.0040.00417.50
8.1.50.0000.00717.48
8.1.40.0040.00417.43
8.1.30.0040.00417.59
8.1.20.0040.00417.64
8.1.10.0000.00717.56
8.1.00.0050.00317.55
8.0.300.0040.00419.60
8.0.290.0050.00316.88
8.0.280.0070.00018.50
8.0.270.0090.00017.25
8.0.260.0000.00717.29
8.0.250.0000.00717.06
8.0.240.0040.00416.97
8.0.230.0000.00717.03
8.0.220.0030.00317.02
8.0.210.0080.00017.02
8.0.200.0000.00716.88
8.0.190.0040.00417.09
8.0.180.0000.00716.94
8.0.170.0040.00417.02
8.0.160.0040.00416.94
8.0.150.0000.00716.78
8.0.140.0040.00416.93
8.0.130.0050.00013.41
8.0.120.0030.00616.91
8.0.110.0040.00416.93
8.0.100.0040.00416.82
8.0.90.0070.00016.89
8.0.80.0050.01416.96
8.0.70.0040.00416.96
8.0.60.0040.00416.93
8.0.50.0000.00816.80
8.0.30.0140.01117.33
8.0.20.0140.00817.40
8.0.10.0030.00517.11
8.0.00.0080.01416.96
7.4.330.0030.00315.00
7.4.320.0040.00416.65
7.4.300.0030.00316.54
7.4.290.0070.00016.55
7.4.280.0040.00416.57
7.4.270.0070.00016.61
7.4.260.0000.00716.54
7.4.250.0050.00316.43
7.4.240.0040.00416.55
7.4.230.0030.00316.66
7.4.220.0040.01516.71
7.4.210.0070.00716.47
7.4.200.0040.00416.73
7.4.160.0070.01016.43
7.4.150.0140.01317.40
7.4.140.0110.01017.86
7.4.130.0090.01216.50
7.4.120.0140.00816.52
7.4.110.0020.01416.68
7.4.100.0140.00516.52
7.4.90.0040.01516.60
7.4.80.0090.01219.39
7.4.70.0030.01616.76
7.4.60.0140.00416.52
7.4.50.0030.00616.53
7.4.40.0140.00516.58
7.4.30.0090.01016.60
7.4.00.0060.00615.06
7.3.330.0030.00313.44
7.3.320.0060.00013.27
7.3.310.0030.00316.34
7.3.300.0000.00716.41
7.3.290.0100.01016.43
7.3.280.0070.01216.46
7.3.270.0170.00317.40
7.3.260.0100.00916.50
7.3.250.0100.01216.49
7.3.240.0040.01716.55
7.3.230.0100.01416.43
7.3.210.0060.01216.55
7.3.200.0080.01419.39
7.3.190.0100.01016.45
7.3.180.0160.00016.50
7.3.170.0050.01116.55
7.3.160.0090.00916.64
7.2.330.0090.01116.43
7.2.320.0030.01716.82
7.2.310.0140.00416.63
7.2.300.0080.00816.40
7.2.290.0060.01116.56
7.2.00.0070.00719.31
7.1.100.0040.00818.05
7.1.70.0120.00617.19
7.1.60.0180.00719.40
7.1.50.0100.01617.04
7.1.00.0070.07322.51
7.0.200.0000.00816.81
7.0.140.0030.06722.18
7.0.60.0000.08319.94
7.0.50.0130.07017.84
7.0.40.0070.04319.96
7.0.30.0230.04320.09
7.0.20.0300.07320.22
7.0.10.0130.06320.10
7.0.00.0130.06320.32
5.6.280.0100.07021.14
5.6.210.0070.05720.69
5.6.200.0030.04718.25
5.6.190.0030.05020.33
5.6.180.3870.05020.61
5.6.170.0270.06320.49
5.6.160.0100.05320.45
5.6.150.0000.09718.18
5.6.140.0100.07718.17
5.6.130.0030.04318.17
5.6.120.0030.04321.02
5.6.110.0070.08321.01
5.6.100.0170.07321.02
5.6.90.0130.07021.00
5.6.80.0030.08320.49
5.6.70.0330.03320.32
5.5.350.0000.08720.42
5.5.340.0070.07017.95
5.5.330.0070.07320.45
5.5.320.0270.03720.20
5.5.310.0270.07720.37
5.5.300.0070.03717.98
5.5.290.0030.05017.99
5.5.280.0100.08020.89
5.5.270.0130.07020.91
5.5.260.0100.07720.98
5.5.250.0100.08020.64
5.5.240.0130.04320.17
5.4.450.0800.06019.47
5.4.440.0770.05719.65
5.4.430.0830.04319.53
5.4.420.0570.05719.59
5.4.410.0170.05319.38
5.4.400.0130.05719.20
5.4.390.0200.05019.28
5.4.380.0170.05018.58
5.4.370.0130.03318.50
5.4.360.0100.04018.60
5.4.350.0120.07012.03
5.4.340.0110.03312.03
5.4.320.0070.04012.52
5.4.310.0020.04412.52
5.4.300.0070.03812.52
5.4.290.0060.03912.51
5.4.280.0060.03712.41
5.4.270.0050.03812.41
5.4.260.0080.04212.42
5.4.250.0090.03812.41
5.4.240.0080.03512.41
5.4.230.0060.05212.41
5.4.220.0070.03712.41
5.4.210.0080.03512.41
5.4.200.0090.05312.41
5.4.190.0060.05412.40
5.4.180.0090.04712.41
5.4.170.0090.05112.41
5.4.160.0080.04412.41
5.4.150.0070.04012.41
5.4.140.0140.05012.09
5.4.130.0070.03912.08
5.4.120.0110.04912.04
5.4.110.0070.05212.04
5.4.100.0030.03912.04
5.4.90.0090.03512.03
5.4.80.0090.03512.04
5.4.70.0070.03512.03
5.4.60.0090.04912.03
5.4.50.0070.05212.03
5.4.40.0060.03712.02
5.4.30.0110.04812.01
5.4.20.0070.03712.01
5.4.10.0050.03712.00
5.4.00.0090.04411.50
5.3.290.0080.04312.80
5.3.280.0090.05312.71
5.3.270.0140.06112.72
5.3.260.0100.06012.72
5.3.250.0040.05512.71
5.3.240.0080.05412.72
5.3.230.0070.05312.71
5.3.220.0090.05312.68
5.3.210.0060.04112.68
5.3.200.0080.03712.68
5.3.190.0070.03712.68
5.3.180.0050.05712.67
5.3.170.0170.05512.68
5.3.160.0090.05612.68
5.3.150.0150.06012.68
5.3.140.0090.05212.66
5.3.130.0080.04712.66
5.3.120.0090.05712.66
5.3.110.0060.05612.66
5.3.100.0100.05012.14
5.3.90.0050.04212.13
5.3.80.0070.03612.11
5.3.70.0090.05112.11
5.3.60.0050.04012.10
5.3.50.0070.03712.05
5.3.40.0050.03912.05
5.3.30.0100.03212.01
5.3.20.0090.04811.79
5.3.10.0040.05311.75
5.3.00.0060.05411.73
5.2.170.0040.0349.25
5.2.160.0060.0329.25
5.2.150.0060.0309.25
5.2.140.0070.0309.25
5.2.130.0040.0339.21
5.2.120.0100.0369.20
5.2.110.0060.0309.21
5.2.100.0070.0429.21
5.2.90.0070.0299.20
5.2.80.0090.0279.20
5.2.70.0050.0319.20
5.2.60.0050.0319.16
5.2.50.0080.0289.13
5.2.40.0070.0279.10
5.2.30.0040.0329.08
5.2.20.0070.0359.06
5.2.10.0050.0348.97
5.2.00.0070.0398.83
5.1.60.0020.0298.12
5.1.50.0060.0268.11
5.1.40.0050.0278.10
5.1.30.0030.0298.45
5.1.20.0060.0308.46
5.1.10.0070.0368.19
5.1.00.0110.0438.20
5.0.50.0080.0236.68
5.0.40.0040.0216.54
5.0.30.0060.0366.35
5.0.20.0030.0296.32
5.0.10.0060.0196.30
5.0.00.0050.0316.29
4.4.90.0050.0164.78
4.4.80.0060.0154.75
4.4.70.0060.0184.75
4.4.60.0060.0204.75
4.4.50.0060.0224.77
4.4.40.0050.0344.70
4.4.30.0050.0164.75
4.4.20.0080.0164.84
4.4.10.0020.0194.85
4.4.00.0030.0284.76
4.3.110.0060.0154.67
4.3.100.0050.0234.66
4.3.90.0020.0204.64
4.3.80.0080.0364.59
4.3.70.0050.0234.63
4.3.60.0050.0174.63
4.3.50.0040.0174.63
4.3.40.0030.0254.54
4.3.30.0040.0183.34
4.3.20.0030.0233.33
4.3.10.0020.0193.28
4.3.00.0130.0237.11

preferences:
44.24 ms | 401 KiB | 5 Q