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) ); } for ($i=0; $i<32; $i++) { echo pack_encode($i) . "\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)
8.3.60.0070.01418.56
8.3.50.0120.00422.99
8.3.40.0040.01118.65
8.3.30.0060.00819.04
8.3.20.0040.00420.34
8.3.10.0030.00521.79
8.3.00.0030.00517.63
8.2.180.0100.00716.38
8.2.170.0040.01122.96
8.2.160.0070.00720.47
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0060.00321.00
8.2.110.0000.01020.95
8.2.100.0070.00418.18
8.2.90.0000.00919.34
8.2.80.0000.00817.97
8.2.70.0030.00617.50
8.2.60.0000.00818.03
8.2.50.0050.00318.07
8.2.40.0040.00418.16
8.2.30.0000.00818.18
8.2.20.0040.00417.67
8.2.10.0000.00718.06
8.2.00.0040.00417.72
8.1.280.0070.00725.92
8.1.270.0030.00623.82
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00621.28
8.1.230.0000.01319.48
8.1.220.0000.00817.79
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0000.00817.10
8.1.180.0080.00018.10
8.1.170.0050.00318.60
8.1.160.0040.00421.96
8.1.150.0000.00718.80
8.1.140.0040.00417.32
8.1.130.0070.00017.76
8.1.120.0040.00417.50
8.1.110.0030.00517.49
8.1.100.0030.00317.36
8.1.90.0030.00317.42
8.1.80.0000.00717.34
8.1.70.0040.00417.34
8.1.60.0080.00017.54
8.1.50.0080.00017.51
8.1.40.0000.00817.52
8.1.30.0080.00017.61
8.1.20.0080.00017.67
8.1.10.0040.00417.50
8.1.00.0050.00217.27
8.0.300.0000.00718.77
8.0.290.0040.00416.63
8.0.280.0000.00818.44
8.0.270.0030.00517.30
8.0.260.0000.00717.25
8.0.250.0000.00716.96
8.0.240.0000.00716.98
8.0.230.0000.00616.81
8.0.220.0050.00316.91
8.0.210.0040.00416.88
8.0.200.0040.00416.89
8.0.190.0040.00416.91
8.0.180.0040.00416.82
8.0.170.0050.00316.90
8.0.160.0040.00416.83
8.0.150.0040.00416.81
8.0.140.0040.00416.68
8.0.130.0050.00013.31
8.0.120.0040.00416.74
8.0.110.0040.00416.96
8.0.100.0050.00216.95
8.0.90.0040.00416.93
8.0.80.0110.00716.85
8.0.70.0070.00016.88
8.0.60.0070.00016.86
8.0.50.0090.00016.61
8.0.30.0100.01117.11
8.0.20.0110.00717.40
8.0.10.0080.00016.81
8.0.00.0120.00716.84
7.4.330.0030.00315.09
7.4.320.0060.00016.45
7.4.300.0060.00016.52
7.4.290.0070.00016.50
7.4.280.0030.00516.61
7.4.270.0000.00716.63
7.4.260.0060.00316.59
7.4.250.0070.00016.46
7.4.240.0000.00716.42
7.4.230.0070.00016.48
7.4.220.0100.00716.46
7.4.210.0030.01216.61
7.4.200.0000.00716.62
7.4.160.0110.00516.56
7.4.150.0040.01317.40
7.4.140.0100.00817.86
7.4.130.0070.01016.36
7.4.120.0110.00516.55
7.4.110.0070.01016.32
7.4.100.0140.00316.59
7.4.90.0120.00616.56
7.4.80.0040.01819.39
7.4.70.0090.00916.43
7.4.60.0100.00616.46
7.4.50.0040.00416.35
7.4.40.0080.00816.54
7.4.30.0040.01116.42
7.4.10.0070.01114.61
7.4.00.0050.01015.04
7.3.330.0060.00013.25
7.3.320.0000.00513.30
7.3.310.0030.00316.20
7.3.300.0000.00716.34
7.3.290.0130.00016.29
7.3.280.0110.00816.29
7.3.270.0070.01017.40
7.3.260.0080.00816.57
7.3.250.0100.00716.62
7.3.240.0100.00716.50
7.3.230.0070.01716.57
7.3.210.0100.01016.52
7.3.200.0110.01119.39
7.3.190.0110.00716.45
7.3.180.0060.00916.45
7.3.170.0100.01316.27
7.3.160.0170.00316.45
7.3.130.0070.01115.06
7.3.120.0090.00914.60
7.3.110.0070.01314.32
7.3.100.0000.01114.80
7.3.90.0000.01514.73
7.3.80.0070.00414.77
7.3.70.0080.00614.98
7.3.60.0040.00814.97
7.3.50.0030.01014.81
7.3.40.0120.00314.90
7.3.30.0060.00614.70
7.3.20.0040.00816.55
7.3.10.0140.00316.73
7.3.00.0090.00616.70
7.2.330.0190.00316.69
7.2.320.0050.01116.81
7.2.310.0140.00316.82
7.2.300.0060.00916.70
7.2.290.0130.00316.68
7.2.260.0000.01615.05
7.2.250.0140.00314.96
7.2.240.0040.01115.03
7.2.230.0060.01215.21
7.2.220.0070.00715.03
7.2.210.0030.01115.03
7.2.200.0130.00315.20
7.2.190.0030.01515.15
7.2.180.0060.00614.95
7.2.170.0030.00715.17
7.2.160.0060.00915.07
7.2.150.0130.00317.06
7.2.140.0130.00316.77
7.2.130.0090.00317.13
7.2.120.0040.01117.03
7.2.110.0070.00716.95
7.2.100.0110.00417.04
7.2.90.0100.01016.71
7.2.80.0000.01617.15
7.2.70.0070.01017.04
7.2.60.0070.01116.80
7.2.50.0090.00616.72
7.2.40.0070.00717.08
7.2.30.0000.01516.79
7.2.20.0060.01017.04
7.2.10.0040.00717.06
7.2.00.0070.00518.17
7.1.330.0000.01615.99
7.1.320.0100.00015.89
7.1.310.0060.00615.71
7.1.300.0030.01315.86
7.1.290.0030.00615.82
7.1.280.0000.01015.78
7.1.270.0090.00615.45
7.1.260.0000.00915.89
7.1.250.0030.00715.88
7.1.240.0040.01115.87
7.1.230.0100.00315.77
7.1.220.0120.00415.94
7.1.210.0000.01215.54
7.1.200.0040.01115.53
7.1.190.0100.00315.57
7.1.180.0080.00615.75
7.1.170.0000.01416.02
7.1.160.0000.01115.75
7.1.150.0000.01116.01
7.1.140.0100.00015.89
7.1.130.0110.00015.69
7.1.120.0000.01315.66
7.1.110.0090.00315.71
7.1.100.0060.00816.91
7.1.90.0080.00815.98
7.1.80.0070.01115.51
7.1.70.0000.00916.38
7.1.60.0050.00716.44
7.1.50.0030.01316.46
7.1.40.0100.00615.69
7.1.30.0140.00315.66
7.1.20.0040.00815.62
7.1.10.0030.00915.73
7.1.00.0050.04018.99
7.0.330.0060.00615.47
7.0.320.0000.01315.34
7.0.310.0100.00315.43
7.0.300.0030.00915.39
7.0.290.0060.00315.46
7.0.280.0040.00715.47
7.0.270.0050.00515.44
7.0.260.0080.00415.40
7.0.250.0070.00315.27
7.0.240.0100.00615.32
7.0.230.0030.01315.43
7.0.220.0090.00315.44
7.0.210.0080.00415.41
7.0.200.0050.00916.08
7.0.190.0000.01115.41
7.0.180.0030.00915.24
7.0.170.0120.00615.59
7.0.160.0060.00915.50
7.0.150.0070.01115.55
7.0.140.0050.04118.60
7.0.130.0070.00315.60
7.0.120.0040.00415.52
7.0.110.0070.00715.32
7.0.100.0030.00615.46
7.0.90.0030.00615.43
7.0.80.0030.01015.69
7.0.70.0070.00715.09
7.0.60.0120.02917.86
7.0.50.0070.04316.74
7.0.40.0020.02816.88
7.0.30.0200.02916.93
7.0.20.0200.03916.87
7.0.10.0090.02516.90
7.0.00.0050.04316.86
5.6.400.0030.01014.34
5.6.390.0100.00314.52
5.6.380.0070.00714.55
5.6.370.0050.00514.19
5.6.360.0080.00414.08
5.6.350.0090.00614.52
5.6.340.0030.01014.21
5.6.330.0040.00414.70
5.6.320.0070.00714.25
5.6.310.0040.00714.29
5.6.300.0090.00614.61
5.6.290.0000.01514.71
5.6.280.0060.04917.63
5.6.270.0070.01014.27
5.6.260.0030.01014.12
5.6.250.0060.01214.71
5.6.240.0080.00814.30
5.6.230.0060.01014.30
5.6.220.0070.01114.41
5.6.210.0050.04017.54
5.6.200.0050.04216.30
5.6.190.0120.03517.51
5.6.180.0170.02517.45
5.6.170.0280.03817.52
5.6.160.0120.03817.49
5.6.150.0020.02716.17
5.6.140.0130.04016.23
5.6.130.0120.04016.25
5.6.120.0080.03717.89
5.6.110.0050.03217.60
5.6.100.0050.02417.69
5.6.90.0100.02117.91
5.6.80.0080.04517.34
5.6.70.0060.01014.15
5.6.60.0120.00314.42
5.6.50.0080.00614.56
5.6.40.0120.00014.58
5.6.30.0070.00714.30
5.6.20.0110.00014.27
5.6.10.0080.00314.22
5.6.00.0040.00814.30
5.5.380.0040.01114.40
5.5.370.0040.00714.08
5.5.360.0110.00014.52
5.5.350.1780.02517.22
5.5.340.0070.04516.10
5.5.330.0090.02117.18
5.5.320.0230.03317.37
5.5.310.0130.02517.35
5.5.300.0050.02816.04
5.5.290.0020.02716.14
5.5.280.0070.04017.56
5.5.270.0070.02517.57
5.5.260.0050.02617.33
5.5.250.0060.02317.47
5.5.240.0150.03417.25
5.5.230.0030.01314.30
5.5.220.0040.00813.98
5.5.210.0000.01814.52
5.5.200.0120.00314.38
5.5.190.0110.00414.13
5.5.180.0070.00714.36
5.5.170.0000.00914.10
5.5.160.0060.00814.37
5.5.150.0060.00614.43
5.5.140.0080.00414.38
5.5.130.0070.00714.44
5.5.120.0080.01214.42
5.5.110.0090.00014.29
5.5.100.0100.00014.27
5.5.90.0120.00314.22
5.5.80.0100.00314.11
5.5.70.0030.00614.42
5.5.60.0040.01113.99
5.5.50.0060.00914.11
5.5.40.0030.01314.18
5.5.30.0070.00714.22
5.5.20.0070.00714.16
5.5.10.0070.00713.95
5.5.00.0100.00313.86
5.4.450.0200.04015.22
5.4.440.0220.03515.12
5.4.430.0130.03415.15
5.4.420.0150.02315.23
5.4.410.0200.03715.13
5.4.400.0180.02515.15
5.4.390.0190.03214.95
5.4.380.0190.03615.02
5.4.370.0190.03815.06
5.4.360.0210.03515.31
5.4.350.0100.02415.07
5.4.340.0130.02815.08
5.4.330.0070.00311.22
5.4.320.0090.02714.99
5.4.310.0170.03014.96
5.4.300.0150.02114.96
5.4.290.0150.03015.05
5.4.280.0160.02715.05
5.4.270.0150.03715.08
5.4.260.0100.02615.27
5.4.250.0130.02215.06
5.4.240.0190.03015.13
5.4.230.0200.03815.05
5.4.220.0200.03515.09
5.4.210.0180.03915.14
5.4.200.0270.02215.15
5.4.190.0170.02615.08
5.4.180.0250.02115.08
5.4.170.0120.04415.24
5.4.160.0200.02715.07
5.4.150.0180.03814.95
5.4.140.0270.02513.86
5.4.130.0220.03013.77
5.4.120.0180.02213.77
5.4.110.0200.03513.75
5.4.100.0130.02513.87
5.4.90.0180.03613.84
5.4.80.0200.03213.73
5.4.70.0130.02113.83
5.4.60.0170.03613.73
5.4.50.0170.03713.90
5.4.40.0190.03413.69
5.4.30.0130.04113.71
5.4.20.0170.02413.80
5.4.10.0120.02913.75
5.4.00.0150.03313.41
5.3.290.0160.03712.84
5.3.280.0140.02912.87
5.3.270.0220.02512.83
5.3.260.0180.03812.84
5.3.250.0170.02812.90
5.3.240.0170.02612.84
5.3.230.0230.03112.82
5.3.220.0180.03012.82
5.3.210.0150.02512.80
5.3.200.0170.03212.84
5.3.190.0150.02012.84
5.3.180.0200.03812.80
5.3.170.0200.02512.84
5.3.160.0180.03312.80
5.3.150.0180.02712.79
5.3.140.0150.02712.80
5.3.130.0190.02812.78
5.3.120.0170.03812.74
5.3.110.0160.02912.75
5.3.100.0150.04012.52
5.3.90.0130.02712.49
5.3.80.0120.03712.46
5.3.70.0180.01812.63
5.3.60.0150.02312.48
5.3.50.0150.03012.46
5.3.40.0100.02412.45
5.3.30.0130.02412.49
5.3.20.0170.03712.44
5.3.10.0230.02812.40
5.3.00.0220.03512.29
5.2.170.0270.05712.02
5.2.160.0270.05312.02
5.2.150.0270.05012.02
5.2.140.0200.04712.02
5.2.130.0270.05312.02
5.2.120.0230.05712.02
5.2.110.0270.05312.02
5.2.100.0170.03012.02
5.2.90.0200.03012.02
5.2.80.0400.04712.02
5.2.70.0300.05312.02
5.2.60.0270.05012.02
5.2.50.0230.03712.02
5.2.40.0170.04012.02
5.2.30.0300.05012.02
5.2.20.0200.05712.02
5.2.10.0370.03712.02
5.2.00.0230.05312.02
5.1.60.0200.05012.02
5.1.50.0230.03012.02
5.1.40.0200.05712.02
5.1.30.0300.05012.02
5.1.20.0270.05012.02
5.1.10.0200.03712.02
5.1.00.0230.05012.02
5.0.50.0070.02312.02
5.0.40.0070.02012.02
5.0.30.0000.03712.02
5.0.20.0030.02312.02
5.0.10.0070.02012.02
5.0.00.0070.03012.02
4.4.90.0070.04012.02
4.4.80.0070.02012.02
4.4.70.0130.03312.02
4.4.60.0130.03312.02
4.4.50.0070.03712.02
4.4.40.0130.04312.02
4.4.30.0100.01712.02
4.4.20.0100.02312.02
4.4.10.0100.03012.02
4.4.00.0100.02312.02
4.3.110.0030.01712.02
4.3.100.0070.01712.02
4.3.90.0030.01712.02
4.3.80.0030.02712.02
4.3.70.0030.02012.02
4.3.60.0070.01312.02
4.3.50.0030.01712.02
4.3.40.0070.02312.02
4.3.30.0000.01712.02
4.3.20.0030.01312.02
4.3.10.0000.01712.02
4.3.00.0030.01312.02

preferences:
38.76 ms | 400 KiB | 5 Q