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', $val); } function pack_encode_uint32($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)
8.3.60.0090.00618.31
8.3.50.0140.00722.99
8.3.40.0030.01518.70
8.3.30.0070.00718.86
8.3.20.0040.00420.38
8.3.10.0040.00421.90
8.3.00.0060.00317.50
8.2.180.0090.01216.50
8.2.170.0070.00722.96
8.2.160.0070.01420.58
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0090.00026.16
8.2.120.0080.00021.05
8.2.110.0030.00720.54
8.2.100.0030.01217.77
8.2.90.0040.00419.22
8.2.80.0090.00017.97
8.2.70.0060.00317.50
8.2.60.0030.00617.93
8.2.50.0030.00618.10
8.2.40.0060.00718.09
8.2.30.0030.00518.08
8.2.20.0050.00317.74
8.2.10.0000.00818.15
8.2.00.0000.00817.79
8.1.280.0120.00325.92
8.1.270.0060.00323.96
8.1.260.0040.00426.35
8.1.250.0070.01028.09
8.1.240.0090.00022.04
8.1.230.0090.00317.70
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0080.00017.23
8.1.180.0000.00818.10
8.1.170.0060.00318.66
8.1.160.0000.00722.04
8.1.150.0000.00818.91
8.1.140.0050.00217.46
8.1.130.0070.00017.82
8.1.120.0000.00717.48
8.1.110.0040.00417.44
8.1.100.0070.00017.43
8.1.90.0070.00017.47
8.1.80.0040.00417.53
8.1.70.0060.00317.32
8.1.60.0050.00317.61
8.1.50.0030.00517.50
8.1.40.0000.00817.45
8.1.30.0060.00317.68
8.1.20.0040.00417.57
8.1.10.0030.00517.52
8.1.00.0000.00817.51
8.0.300.0050.00318.77
8.0.290.0070.00316.75
8.0.280.0000.00718.45
8.0.270.0000.00917.18
8.0.260.0070.00017.27
8.0.250.0030.00516.92
8.0.240.0000.00816.94
8.0.230.0050.00216.84
8.0.220.0000.00717.00
8.0.210.0030.00316.81
8.0.200.0030.00316.97
8.0.190.0000.00716.87
8.0.180.0050.00216.81
8.0.170.0090.00016.90
8.0.160.0000.00716.94
8.0.150.0000.00716.78
8.0.140.0000.00716.84
8.0.130.0000.00613.36
8.0.120.0050.00316.74
8.0.110.0040.00416.87
8.0.100.0070.00016.86
8.0.90.0040.00416.84
8.0.80.0140.00716.84
8.0.70.0000.00716.78
8.0.60.0050.00216.89
8.0.50.0000.00816.81
8.0.30.0130.01017.11
8.0.20.0150.00917.40
8.0.10.0040.00416.84
8.0.00.0110.01017.01
7.4.330.0000.00515.00
7.4.320.0000.00616.65
7.4.300.0060.00016.55
7.4.290.0070.00016.63
7.4.280.0040.00416.61
7.4.270.0030.00316.54
7.4.260.0020.00916.50
7.4.250.0030.00516.62
7.4.240.0020.00616.44
7.4.230.0030.00316.71
7.4.220.0030.01416.64
7.4.210.0060.01016.46
7.4.200.0050.00316.49
7.4.160.0040.01216.45
7.4.150.0090.01317.40
7.4.140.0070.01317.86
7.4.130.0070.01116.59
7.4.120.0100.01016.60
7.4.110.0100.00716.46
7.4.100.0150.00716.50
7.4.90.0120.00616.44
7.4.80.0100.00719.39
7.4.70.0060.01516.53
7.4.60.0030.01416.49
7.4.50.0000.00416.37
7.4.40.0090.00916.64
7.4.30.0080.01316.02
7.4.00.0090.00315.17
7.3.330.0030.00313.25
7.3.320.0050.00013.40
7.3.310.0030.00316.37
7.3.300.0000.00716.34
7.3.290.0070.00716.49
7.3.280.0100.00716.39
7.3.270.0120.00817.40
7.3.260.0030.01316.53
7.3.250.0110.00916.56
7.3.240.0140.00316.39
7.3.230.0120.00916.43
7.3.210.0150.00316.39
7.3.200.0070.01019.39
7.3.190.0030.01416.43
7.3.180.0080.00816.47
7.3.170.0080.00816.58
7.3.160.0140.00716.47
7.3.10.0070.00716.17
7.3.00.0070.00716.24
7.2.330.0230.00616.68
7.2.320.0100.01316.54
7.2.310.0080.00816.74
7.2.300.0110.00616.81
7.2.290.0090.01216.55
7.2.130.0100.00016.27
7.2.120.0070.01016.64
7.2.110.0040.00816.54
7.2.100.0050.00516.29
7.2.90.0000.01316.48
7.2.80.0140.00916.43
7.2.70.0030.01116.47
7.2.60.0100.00716.41
7.2.50.0130.00316.57
7.2.40.0000.01316.32
7.2.30.0030.01016.73
7.2.20.0030.01316.53
7.2.10.0030.00916.67
7.2.00.0030.00818.12
7.1.250.0030.00815.51
7.1.100.0030.00918.38
7.1.70.0000.00817.34
7.1.60.0070.01319.40
7.1.50.0100.01017.02
7.1.00.0030.07722.37
7.0.200.0000.00716.74
7.0.140.0130.06721.97
7.0.60.0030.09019.88
7.0.50.0100.07717.99
7.0.40.0130.07719.96
7.0.30.0370.07720.13
7.0.20.0300.08020.21
7.0.10.0100.05320.33
7.0.00.0130.07320.25
5.6.210.0170.06320.58
5.6.200.0130.07018.15
5.6.190.0070.08320.52
5.6.180.0270.07720.49
5.6.170.0200.04720.46
5.6.160.0170.08020.63
5.6.150.0100.07718.18
5.6.140.0070.04318.16
5.6.130.0100.04318.18
5.6.120.0030.07721.00
5.6.110.0030.08721.11
5.6.100.0070.05320.98
5.6.90.0130.08320.98
5.6.80.0170.07020.36
5.5.350.0200.04720.39
5.5.340.0070.05718.02
5.5.330.0070.08020.32
5.5.320.0200.03720.41
5.5.310.0370.07020.50
5.5.300.0070.07017.97
5.5.290.0030.04717.99
5.5.280.0100.06020.75
5.5.270.0100.08020.77
5.5.260.0100.08020.90
5.5.250.0070.07720.73
5.5.240.0030.06720.16
5.4.450.0730.05319.53
5.4.440.0900.05319.55
5.4.430.0900.06319.65
5.4.420.0800.05019.34
5.4.410.0800.05019.15
5.4.400.0070.05319.33
5.4.390.0770.06018.98
5.4.380.0230.04718.60
5.4.370.0200.05318.71
5.4.360.0230.05018.84
5.4.350.0060.04512.03
5.4.340.0090.04712.03
5.4.320.0080.03512.52
5.4.310.0080.04112.52
5.4.300.0090.04012.52
5.4.290.0110.05112.52
5.4.280.0110.04112.41
5.4.270.0110.05012.41
5.4.260.0100.05312.41
5.4.250.0070.05712.41
5.4.240.0070.05212.41
5.4.230.0090.05212.40
5.4.220.0090.05112.40
5.4.210.0090.05812.40
5.4.200.0090.06012.40
5.4.190.0070.05312.40
5.4.180.0080.05212.40
5.4.170.0050.05412.41
5.4.160.0080.04312.40
5.4.150.0090.05212.40
5.4.140.0080.05512.09
5.4.130.0030.05612.07
5.4.120.0090.05212.02
5.4.110.0070.05412.03
5.4.100.0120.05912.03
5.4.90.0050.05412.03
5.4.80.0100.05212.03
5.4.70.0090.04912.03
5.4.60.0090.06012.02
5.4.50.0120.05512.02
5.4.40.0140.04812.01
5.4.30.0110.04712.00
5.4.20.0070.04412.01
5.4.10.0090.05012.01
5.4.00.0120.04611.50
5.3.290.0100.04612.80
5.3.280.0080.05312.71
5.3.270.0090.05412.72
5.3.260.0080.05412.72
5.3.250.0080.05412.72
5.3.240.0070.05612.72
5.3.230.0080.05312.71
5.3.220.0130.05612.68
5.3.210.0110.05112.68
5.3.200.0090.05212.68
5.3.190.0130.05012.68
5.3.180.0080.03712.67
5.3.170.0070.03612.67
5.3.160.0080.03512.67
5.3.150.0090.03612.67
5.3.140.0090.03612.66
5.3.130.0080.05312.66
5.3.120.0080.05312.66
5.3.110.0110.05012.66
5.3.100.0120.04612.13
5.3.90.0070.05312.11
5.3.80.0110.04712.10
5.3.70.0110.04712.11
5.3.60.0090.05112.09
5.3.50.0090.04812.04
5.3.40.0070.05012.04
5.3.30.0080.03412.00
5.3.20.0080.03811.78
5.3.10.0050.03911.74
5.3.00.0080.03611.73
5.2.170.0100.0359.24
5.2.160.0100.0359.24
5.2.150.0060.0329.24
5.2.140.0060.0379.23
5.2.130.0110.0419.20
5.2.120.0060.0459.20
5.2.110.0110.0379.20
5.2.100.0050.0369.20
5.2.90.0060.0289.20
5.2.80.0060.0299.20
5.2.70.0020.0349.20
5.2.60.0040.0319.15
5.2.50.0050.0319.12
5.2.40.0070.0289.10
5.2.30.0030.0339.07
5.2.20.0040.0309.06
5.2.10.0040.0298.96
5.2.00.0050.0298.82
5.1.60.0050.0248.12
5.1.50.0040.0278.11
5.1.40.0040.0268.09
5.1.30.0030.0298.45
5.1.20.0060.0448.46
5.1.10.0050.0378.19
5.1.00.0070.0378.19
5.0.50.0060.0306.67
5.0.40.0100.0246.54
5.0.30.0070.0356.34
5.0.20.0070.0176.31
5.0.10.0040.0226.29
5.0.00.0030.0376.29
4.4.90.0040.0164.78
4.4.80.0050.0154.75
4.4.70.0030.0174.75
4.4.60.0030.0164.75
4.4.50.0030.0164.77
4.4.40.0040.0244.71
4.4.30.0030.0164.76
4.4.20.0050.0144.85
4.4.10.0040.0164.85
4.4.00.0050.0254.75
4.3.110.0000.0204.67
4.3.100.0030.0174.67
4.3.90.0040.0154.63
4.3.80.0030.0294.59
4.3.70.0040.0144.63
4.3.60.0030.0164.63
4.3.50.0070.0124.62
4.3.40.0020.0264.54
4.3.30.0020.0173.33
4.3.20.0020.0173.31
4.3.10.0010.0183.27
4.3.00.0100.0277.11

preferences:
38.85 ms | 401 KiB | 5 Q