3v4l.org

run code in 300+ PHP versions simultaneously
<?php function pack_encode($val) { $str = ''; while ($val > 0) { $str .= chr($val & 0xFF); $val = $val >> 8; } // "/" json-encodes poorly and "=" is padding return str_replace( array('/', '='), array('_', ''), base64_encode($str) ); } function pack_decode($bin) { $str = base64_decode(str_replace('_', '/', $bin)); $val = 0; for ($i=0; $i<strlen($str); $i++) { $val |= (ord($str[$i]) << ($i * 8)); } return $val; } for ($i=0; $i<32; $i++) { $val = 1<<$i; $enc = pack_encode($val); $dec = pack_decode($enc); echo "$val => $enc => $dec\n"; } /* $arr = array(); $packed = pack('N', 32767); for ($i=0; $i<strlen($packed); $i++) { $arr[$i] = ord($packed[$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)
8.3.60.0150.00618.56
8.3.50.0100.00422.88
8.3.40.0140.00719.14
8.3.30.0140.00019.21
8.3.20.0040.00420.34
8.3.10.0040.00421.82
8.3.00.0000.00817.63
8.2.180.0120.00616.71
8.2.170.0070.00722.96
8.2.160.0030.01020.44
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00021.09
8.2.110.0040.00820.98
8.2.100.0060.00618.22
8.2.90.0050.00319.13
8.2.80.0080.00017.97
8.2.70.0000.00917.34
8.2.60.0040.00418.05
8.2.50.0080.00018.07
8.2.40.0040.00418.28
8.2.30.0000.00718.14
8.2.20.0050.00317.70
8.2.10.0000.00717.96
8.2.00.0050.00317.64
8.1.280.0090.00625.92
8.1.270.0030.00523.96
8.1.260.0040.00426.35
8.1.250.0060.00628.09
8.1.240.0030.00621.37
8.1.230.0040.00719.61
8.1.220.0050.00317.74
8.1.210.0000.00918.77
8.1.200.0060.00317.23
8.1.190.0040.00417.10
8.1.180.0080.00018.10
8.1.170.0050.00318.54
8.1.160.0000.00721.89
8.1.150.0000.00718.85
8.1.140.0050.00217.44
8.1.130.0030.00317.76
8.1.120.0050.00217.47
8.1.110.0080.00017.44
8.1.100.0030.00317.43
8.1.90.0050.00217.45
8.1.80.0040.00417.31
8.1.70.0070.00317.34
8.1.60.0000.00817.59
8.1.50.0040.00417.53
8.1.40.0000.00717.54
8.1.30.0030.00517.60
8.1.20.0000.00817.64
8.1.10.0000.00817.60
8.1.00.0000.00817.49
8.0.300.0000.00718.77
8.0.290.0080.00016.63
8.0.280.0040.00418.42
8.0.270.0050.00317.20
8.0.260.0000.00717.27
8.0.250.0000.00716.82
8.0.240.0000.00716.99
8.0.230.0000.00717.02
8.0.220.0030.00517.00
8.0.210.0000.00716.93
8.0.200.0030.00316.89
8.0.190.0000.00716.94
8.0.180.0040.00416.93
8.0.170.0040.00416.95
8.0.160.0040.00416.79
8.0.150.0000.00716.70
8.0.140.0000.00716.89
8.0.130.0050.00013.38
8.0.120.0080.00016.85
8.0.110.0000.00716.98
8.0.100.0040.00416.98
8.0.90.0040.00416.78
8.0.80.0160.00716.83
8.0.70.0040.00416.77
8.0.60.0030.00516.77
8.0.50.0040.00416.82
8.0.30.0150.00317.08
8.0.20.0070.01317.40
8.0.10.0000.00817.09
8.0.00.0080.01116.85
7.4.330.0000.00515.00
7.4.320.0000.00616.37
7.4.300.0000.00616.48
7.4.290.0070.00016.64
7.4.280.0000.00916.60
7.4.270.0000.00816.51
7.4.260.0030.00316.50
7.4.250.0000.00716.49
7.4.240.0050.00216.52
7.4.230.0000.00716.65
7.4.220.0090.00916.58
7.4.210.0060.01316.53
7.4.200.0070.00016.59
7.4.160.0100.00616.63
7.4.150.0110.00617.40
7.4.140.0130.00817.86
7.4.130.0140.00516.59
7.4.120.0120.00616.57
7.4.110.0090.00916.37
7.4.100.0100.00716.63
7.4.90.0110.00716.42
7.4.80.0040.01419.39
7.4.70.0100.00716.60
7.4.60.0110.00616.56
7.4.50.0060.00316.46
7.4.40.0150.00516.74
7.4.30.0110.00916.32
7.4.10.0100.01016.59
7.4.00.0050.01015.86
7.3.330.0030.00313.20
7.3.320.0030.00313.36
7.3.310.0030.00316.28
7.3.300.0040.00416.42
7.3.290.0080.00516.43
7.3.280.0070.01216.33
7.3.270.0120.00417.40
7.3.260.0140.00416.60
7.3.250.0120.00516.55
7.3.240.0070.01316.34
7.3.230.0140.00316.55
7.3.210.0060.01216.23
7.3.200.0070.01119.39
7.3.190.0030.01316.29
7.3.180.0120.00616.38
7.3.170.0090.00616.63
7.3.160.0100.00716.31
7.3.130.0040.01516.28
7.3.120.0030.01616.39
7.3.110.0060.00916.28
7.3.100.0040.01216.12
7.3.90.0100.00616.37
7.3.80.0070.00716.42
7.3.70.0070.00316.08
7.3.60.0070.00716.47
7.3.50.0120.00316.32
7.3.40.0030.01316.38
7.3.30.0060.01016.38
7.3.20.0080.00818.15
7.3.10.0040.00818.23
7.3.00.0090.00318.23
7.2.330.0060.01316.49
7.2.320.0130.00316.82
7.2.310.0190.00316.66
7.2.300.0100.00716.50
7.2.290.0040.01216.63
7.2.260.0060.01516.53
7.2.250.0060.01516.28
7.2.240.0030.01216.63
7.2.230.0120.00416.60
7.2.220.0060.01016.67
7.2.210.0030.01616.39
7.2.200.0040.00816.42
7.2.190.0030.01316.38
7.2.180.0100.00016.50
7.2.170.0080.00816.37
7.2.160.0000.01016.48
7.2.150.0100.00618.21
7.2.140.0000.01518.30
7.2.130.0060.00918.21
7.2.120.0130.00318.54
7.2.110.0070.00718.34
7.2.100.0100.00718.17
7.2.90.0000.01318.35
7.2.80.0060.00918.44
7.2.70.0060.01318.10
7.2.60.0060.01217.62
7.2.50.0060.00918.36
7.2.40.0060.00618.40
7.2.30.0070.01018.34
7.2.20.0090.00618.31
7.2.10.0110.00718.28
7.2.00.0080.00818.87
7.1.330.0040.00817.39
7.1.320.0060.00317.29
7.1.310.0060.00317.18
7.1.300.0040.01117.46
7.1.290.0040.01217.27
7.1.280.0100.00717.35
7.1.270.0050.00817.50
7.1.260.0000.01117.23
7.1.250.0040.01117.21
7.1.240.0100.00717.21
7.1.230.0000.01617.32
7.1.220.0070.00717.29
7.1.210.0030.01017.14
7.1.200.0050.00816.54
7.1.190.0090.00617.39
7.1.180.0060.00917.33
7.1.170.0080.00817.22
7.1.160.0000.01617.28
7.1.150.0030.01017.36
7.1.140.0090.00917.30
7.1.130.0030.01217.18
7.1.120.0100.00317.47
7.1.110.0100.00317.41
7.1.100.0120.00317.62
7.1.90.0000.01817.29
7.1.80.0090.00917.29
7.1.70.0050.00517.32
7.1.60.0130.00718.45
7.1.50.0060.01317.17
7.1.40.0040.01117.51
7.1.30.0100.00717.18
7.1.20.0080.00817.31
7.1.10.0100.00717.45
7.1.00.0020.04319.85
7.0.330.0000.01217.02
7.0.320.0040.01116.89
7.0.310.0090.00617.05
7.0.300.0000.01416.93
7.0.290.0000.01217.07
7.0.280.0030.00917.01
7.0.270.0070.00716.84
7.0.260.0060.00617.13
7.0.250.0060.00917.00
7.0.240.0090.00617.04
7.0.230.0060.01217.10
7.0.220.0060.01217.13
7.0.210.0030.00917.05
7.0.200.0060.00616.93
7.0.190.0140.00317.08
7.0.180.0000.01517.03
7.0.170.0050.00816.97
7.0.160.0110.00416.96
7.0.150.0030.01017.05
7.0.140.0000.04319.39
7.0.130.0100.00316.96
7.0.120.0080.00816.94
7.0.110.0060.00616.82
7.0.100.0000.00916.97
7.0.90.0040.00717.04
7.0.80.0060.00916.89
7.0.70.0110.00816.87
7.0.60.0070.04718.44
7.0.50.0080.02817.49
7.0.40.0080.04517.53
7.0.30.0180.04217.60
7.0.20.0030.04917.54
7.0.10.0070.04717.62
7.0.00.0110.04017.53
5.6.400.0110.00715.97
5.6.390.0070.00716.11
5.6.380.0100.00015.85
5.6.370.0100.00615.95
5.6.360.0060.00615.59
5.6.350.0070.00716.15
5.6.340.0000.01016.13
5.6.330.0120.00615.98
5.6.320.0030.01015.93
5.6.310.0090.00615.52
5.6.300.0040.01115.94
5.6.290.0070.00315.85
5.6.280.0060.04018.46
5.6.270.0100.00316.08
5.6.260.0070.00715.97
5.6.250.0060.00615.93
5.6.240.0000.01015.91
5.6.230.0110.00315.91
5.6.220.0090.00615.73
5.6.210.0090.04018.09
5.6.200.0050.02817.03
5.6.190.0100.02018.11
5.6.180.0150.04418.20
5.6.170.0180.02218.19
5.6.160.0080.04518.11
5.6.150.0070.03517.00
5.6.140.0080.03717.02
5.6.130.0050.05017.13
5.6.120.0030.02618.42
5.6.110.0090.04318.56
5.6.100.0130.03818.40
5.6.90.0020.04218.42
5.6.80.0090.03918.15
5.6.70.0060.01015.70
5.6.60.0090.00615.64
5.6.50.0060.00615.92
5.6.40.0070.01115.92
5.6.30.0100.00615.93
5.6.20.0060.00315.78
5.6.10.0000.01415.87
5.6.00.0000.01315.66
5.5.380.0080.00815.61
5.5.370.0060.01615.72
5.5.360.0060.00915.72
5.5.350.0220.04018.03
5.5.340.0050.04016.88
5.5.330.0020.03317.95
5.5.320.0080.05017.98
5.5.310.0260.03418.03
5.5.300.0050.02616.85
5.5.290.0060.03616.87
5.5.280.0110.02618.16
5.5.270.0120.04318.27
5.5.260.0130.04118.17
5.5.250.0030.04618.23
5.5.240.0080.03917.85
5.5.230.0000.01615.52
5.5.220.0120.00615.57
5.5.210.0120.00415.50
5.5.200.0070.01115.50
5.5.190.0070.01015.61
5.5.180.0100.00415.45
5.5.170.0080.00815.61
5.5.160.0090.00315.52
5.5.150.0130.00315.48
5.5.140.0060.00315.55
5.5.130.0080.00815.57
5.5.120.0080.00815.63
5.5.110.0110.00415.43
5.5.100.0090.00615.55
5.5.90.0130.00315.30
5.5.80.0120.00415.41
5.5.70.0110.00015.39
5.5.60.0030.01515.73
5.5.50.0030.00815.68
5.5.40.0000.01215.56
5.5.30.0090.00915.91
5.5.20.0060.00915.91
5.5.10.0060.00315.75
5.5.00.0000.01815.50
5.4.450.0500.02716.10
5.4.440.0130.03416.09
5.4.430.0090.03315.96
5.4.420.0150.03516.17
5.4.410.0100.03015.98
5.4.400.0190.02915.71
5.4.390.0220.03915.65
5.4.380.0020.03515.76
5.4.370.0060.02815.65
5.4.360.0080.02815.59
5.4.350.0050.02112.33
5.4.340.0040.02512.33
5.4.330.0060.00612.65
5.4.320.0070.02212.58
5.4.310.0060.02012.58
5.4.300.0040.02212.58
5.4.290.0060.02412.71
5.4.280.0050.01912.53
5.4.270.0080.01712.53
5.4.260.0070.02012.53
5.4.250.0050.02312.53
5.4.240.0030.02312.52
5.4.230.0050.02212.52
5.4.220.0040.03112.52
5.4.210.0050.02212.52
5.4.200.0080.02312.52
5.4.190.0050.02312.52
5.4.180.0060.01812.53
5.4.170.0050.02112.52
5.4.160.0020.02412.52
5.4.150.0070.01912.52
5.4.140.0050.02212.36
5.4.130.0040.02112.35
5.4.120.0070.02012.34
5.4.110.0060.01912.35
5.4.100.0050.02312.33
5.4.90.0090.02012.33
5.4.80.0050.02012.33
5.4.70.0070.01812.33
5.4.60.0030.02212.33
5.4.50.0070.01912.33
5.4.40.0050.02012.34
5.4.30.0070.01912.32
5.4.20.0070.01912.32
5.4.10.0090.01712.32
5.4.00.0060.02212.07
5.3.290.0080.02713.07
5.3.280.0030.02413.02
5.3.270.0060.02312.98
5.3.260.0070.02313.06
5.3.250.0060.02312.91
5.3.240.0030.02312.94
5.3.230.0080.02212.92
5.3.220.0060.01912.84
5.3.210.0040.02312.83
5.3.200.0060.02212.82
5.3.190.0020.02312.86
5.3.180.0040.02312.93
5.3.170.0070.02012.92
5.3.160.0080.01912.93
5.3.150.0020.02312.99
5.3.140.0070.02312.95
5.3.130.0090.02412.90
5.3.120.0080.02412.96
5.3.110.0130.02012.89
5.3.100.0090.02212.55
5.3.90.0080.02412.70
5.3.80.0090.02312.54
5.3.70.0090.02312.57
5.3.60.0070.02412.60
5.3.50.0070.03212.52
5.3.40.0070.02812.55
5.3.30.0100.02012.58
5.3.20.0100.02012.38
5.3.10.0100.02112.31
5.3.00.0080.02112.36
5.2.170.0050.0299.23
5.2.160.0050.0289.23
5.2.150.0050.0299.23
5.2.140.0030.0329.22
5.2.130.0060.0289.19
5.2.120.0030.0309.19
5.2.110.0060.0299.20
5.2.100.0040.0309.19
5.2.90.0040.0299.19
5.2.80.0060.0319.19
5.2.70.0040.0319.18
5.2.60.0040.0309.14
5.2.50.0040.0319.11
5.2.40.0030.0309.09
5.2.30.0050.0299.06
5.2.20.0020.0319.04
5.2.10.0040.0298.95
5.2.00.0040.0298.82
5.1.60.0040.0248.10
5.1.50.0050.0248.10
5.1.40.0040.0248.08
5.1.30.0040.0268.43
5.1.20.0090.0228.45
5.1.10.0050.0258.17
5.1.00.0040.0298.18
5.0.50.0030.0236.65
5.0.40.0030.0206.52
5.0.30.0040.0306.32
5.0.20.0040.0196.29
5.0.10.0060.0266.27
5.0.00.0060.0386.27
4.4.90.0030.0224.78
4.4.80.0030.0214.75
4.4.70.0040.0154.76
4.4.60.0040.0144.75
4.4.50.0010.0174.77
4.4.40.0040.0324.71
4.4.30.0060.0164.76
4.4.20.0020.0164.84
4.4.10.0030.0154.85
4.4.00.0020.0254.76
4.3.110.0060.0134.67
4.3.100.0030.0144.66
4.3.90.0020.0154.63
4.3.80.0030.0244.58
4.3.70.0050.0144.63
4.3.60.0060.0184.63
4.3.50.0020.0174.63
4.3.40.0040.0234.53
4.3.30.0030.0183.31
4.3.20.0020.0213.29
4.3.10.0040.0153.25
4.3.00.0130.0237.15

preferences:
62.56 ms | 401 KiB | 5 Q