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*1024*256) . "\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)
8.3.60.0090.01218.47
8.3.50.0070.01222.90
8.3.40.0120.00318.97
8.3.30.0040.01119.04
8.3.20.0000.00720.24
8.3.10.0050.00221.89
8.3.00.0050.00317.63
8.2.180.0070.00716.38
8.2.170.0120.00922.96
8.2.160.0120.00318.93
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0000.00721.02
8.2.110.0060.00320.57
8.2.100.0120.00017.96
8.2.90.0050.00318.28
8.2.80.0050.00317.97
8.2.70.0060.00317.63
8.2.60.0040.00418.05
8.2.50.0000.00918.07
8.2.40.0000.00818.34
8.2.30.0050.00218.13
8.2.20.0020.00517.74
8.2.10.0030.00518.17
8.2.00.0070.00017.61
8.1.280.0120.00625.92
8.1.270.0050.00323.91
8.1.260.0040.00426.35
8.1.250.0100.00328.09
8.1.240.0040.00422.05
8.1.230.0090.00320.92
8.1.220.0000.00817.78
8.1.210.0030.00518.95
8.1.200.0060.00317.23
8.1.190.0000.00817.00
8.1.180.0040.00418.10
8.1.170.0030.00618.59
8.1.160.0000.00722.00
8.1.150.0040.00418.92
8.1.140.0000.00717.40
8.1.130.0030.00317.88
8.1.120.0070.00017.38
8.1.110.0040.00417.37
8.1.100.0000.00717.29
8.1.90.0040.00417.37
8.1.80.0030.00617.51
8.1.70.0070.00317.34
8.1.60.0060.00317.59
8.1.50.0050.00317.57
8.1.40.0050.00217.43
8.1.30.0030.00617.55
8.1.20.0040.00417.62
8.1.10.0000.00917.48
8.1.00.0040.00417.33
8.0.300.0040.00420.23
8.0.290.0040.00416.75
8.0.280.0000.00718.40
8.0.270.0080.00017.25
8.0.260.0070.00017.29
8.0.250.0030.00316.84
8.0.240.0000.00716.82
8.0.230.0000.00816.92
8.0.220.0030.00316.87
8.0.210.0000.00716.79
8.0.200.0000.00616.82
8.0.190.0000.00716.81
8.0.180.0040.00416.91
8.0.170.0080.00016.94
8.0.160.0050.00216.87
8.0.150.0070.00016.79
8.0.140.0020.00516.74
8.0.130.0000.00513.29
8.0.120.0030.00716.81
8.0.110.0080.00016.85
8.0.100.0080.00016.82
8.0.90.0000.00716.83
8.0.80.0160.00616.80
8.0.70.0080.00016.69
8.0.60.0040.00416.89
8.0.50.0080.00016.88
8.0.30.0080.01116.98
8.0.20.0090.01017.40
8.0.10.0040.00416.76
8.0.00.0050.01216.77
7.4.330.0000.00615.02
7.4.320.0000.00816.39
7.4.300.0030.00316.49
7.4.290.0040.00416.62
7.4.280.0040.00416.56
7.4.270.0030.00316.60
7.4.260.0030.00716.47
7.4.250.0020.00516.55
7.4.240.0050.00216.44
7.4.230.0040.00416.68
7.4.220.0060.01216.47
7.4.210.0100.01016.46
7.4.200.0030.00316.57
7.4.160.0110.00616.37
7.4.150.0120.00617.40
7.4.140.0110.00717.86
7.4.130.0100.01016.47
7.4.120.0080.00816.59
7.4.110.0160.00316.32
7.4.100.0150.00616.56
7.4.90.0060.01216.50
7.4.80.0100.00719.39
7.4.70.0160.00016.56
7.4.60.0120.00616.55
7.4.50.0050.00316.65
7.4.40.0160.00616.32
7.4.30.0120.01216.48
7.4.00.0000.01115.13
7.3.330.0060.00013.30
7.3.320.0060.00013.34
7.3.310.0000.00716.35
7.3.300.0070.00016.32
7.3.290.0100.00416.29
7.3.280.0100.01016.29
7.3.270.0130.00317.40
7.3.260.0110.00616.43
7.3.250.0080.01216.30
7.3.240.0070.01416.29
7.3.230.0040.01416.63
7.3.210.0130.01016.63
7.3.200.0060.01319.39
7.3.190.0070.01016.38
7.3.180.0080.00816.54
7.3.170.0060.01216.69
7.3.160.0070.01516.66
7.2.330.0060.01316.84
7.2.320.0060.01116.78
7.2.310.0090.01316.50
7.2.300.0000.01616.48
7.2.290.0150.00316.51
7.2.60.0040.01117.01
7.1.200.0110.00015.72
7.1.70.0040.00416.77
7.1.60.0070.01719.40
7.1.50.0040.01917.02
7.1.00.0030.07722.42
7.0.200.0070.00016.80
7.0.140.0030.07322.02
7.0.60.0100.07319.80
7.0.50.0100.04317.96
7.0.40.0130.04720.04
7.0.30.0330.07720.20
7.0.20.0270.05320.22
7.0.10.0170.08320.15
7.0.00.0100.08020.08
5.6.280.0000.09720.79
5.6.210.0070.07020.54
5.6.200.0070.06318.19
5.6.190.0000.05020.47
5.6.180.0430.03020.50
5.6.170.0200.09020.51
5.6.160.0100.07020.50
5.6.150.0030.08718.22
5.6.140.0000.05318.11
5.6.130.0030.05718.25
5.6.120.0070.05320.98
5.6.110.0070.06721.14
5.6.100.0070.06721.13
5.6.90.0000.04720.98
5.6.80.0070.08020.43
5.5.350.0300.06720.53
5.5.340.0070.07017.95
5.5.330.0170.06720.28
5.5.320.0200.08320.35
5.5.310.0300.06320.32
5.5.300.0030.08717.94
5.5.290.0130.04317.97
5.5.280.0130.07720.96
5.5.270.0100.05320.84
5.5.260.0100.08020.64
5.5.250.0030.09020.55
5.5.240.0030.06720.26
5.4.450.0300.07319.42
5.4.440.0370.06719.20
5.4.430.0330.07319.54
5.4.420.0300.07319.27
5.4.410.0230.03719.34
5.4.400.0170.07719.15
5.4.390.0170.07718.88
5.4.380.0270.07319.15
5.4.370.0200.05019.23
5.4.360.0230.07718.95
5.4.350.0400.05718.87
5.4.340.0270.07318.85
5.4.320.0270.04319.14
5.4.310.0170.04719.09
5.4.300.0400.05719.16
5.4.290.0270.05019.22
5.4.280.0270.05718.94
5.4.270.0230.08019.17
5.4.260.0200.04019.33
5.4.250.0300.04719.21
5.4.240.0230.05719.07
5.4.230.0330.06318.85
5.4.220.0300.05718.85
5.4.210.0230.06319.30
5.4.200.0270.05319.06
5.4.190.0200.06318.99
5.4.180.0130.05319.07
5.4.170.0170.04318.93
5.4.160.0200.06018.98
5.4.150.0230.07319.22
5.4.140.0200.03716.50
5.4.130.0230.07316.35
5.4.120.0300.05716.32
5.4.110.0200.04716.27
5.4.100.0230.04316.54
5.4.90.0270.04016.51
5.4.80.0230.06316.39
5.4.70.0270.06716.17
5.4.60.0200.07716.54
5.4.50.0200.05716.53
5.4.40.0230.06316.38
5.4.30.0130.04716.42
5.4.20.0170.05716.16
5.4.10.0300.05716.51
5.4.00.0170.07315.82
5.3.290.0070.04714.71
5.3.280.0270.06014.52
5.3.270.0230.07314.77
5.3.260.0230.04714.68
5.3.250.0170.04714.84
5.3.240.0300.06014.65
5.3.230.0170.05314.52
5.3.220.0170.05714.54
5.3.210.0170.05014.72
5.3.200.0200.05314.54
5.3.190.0200.05314.55
5.3.180.0270.05014.71
5.3.170.0200.07714.58
5.3.160.0230.06714.47
5.3.150.0270.06314.54
5.3.140.0230.05714.47
5.3.130.0200.04314.59
5.3.120.0130.08014.59
5.3.110.0130.05714.71
5.3.100.0200.05714.01
5.3.90.0230.06713.99
5.3.80.0200.04714.07
5.3.70.0130.07014.10
5.3.60.0200.07314.02
5.3.50.0270.07013.88
5.3.40.0300.06313.97
5.3.30.0300.04714.04
5.3.20.0230.04713.74
5.3.10.0200.07713.70
5.3.00.0330.06013.56
5.2.170.0170.06012.02
5.2.160.0230.04712.02
5.2.150.0270.05712.02
5.2.140.0270.03312.02
5.2.130.0100.04312.02
5.2.120.0170.04312.02
5.2.110.0230.04312.02
5.2.100.0230.04312.02
5.2.90.0330.02712.02
5.2.80.0200.06312.02
5.2.70.0230.04312.02
5.2.60.0170.06312.02
5.2.50.0270.04012.02
5.2.40.0170.06012.02
5.2.30.0230.05312.02
5.2.20.0100.03712.02
5.2.10.0130.04012.02
5.2.00.0170.04312.02
5.1.60.0070.03712.02
5.1.50.0170.05312.02
5.1.40.0270.04012.02
5.1.30.0100.04312.02
5.1.20.0170.02312.02
5.1.10.0100.03712.02
5.1.00.0230.04712.02
5.0.50.0030.03712.02
5.0.40.0100.02712.02
5.0.30.0130.05312.02
5.0.20.0070.03712.02
5.0.10.0030.02312.02
5.0.00.0030.05312.02
4.4.90.0030.03312.02
4.4.80.0100.02312.02
4.4.70.0070.02712.02
4.4.60.0030.03712.02
4.4.50.0030.02712.02
4.4.40.0070.05712.02
4.4.30.0100.03012.02
4.4.20.0030.02312.02
4.4.10.0030.03012.02
4.4.00.0100.05312.02
4.3.110.0070.02712.02
4.3.100.0070.02712.02
4.3.90.0070.03312.02
4.3.80.0130.04712.02
4.3.70.0100.02712.02
4.3.60.0030.03712.02
4.3.50.0030.03012.02
4.3.40.0130.04312.02
4.3.30.0000.04012.02
4.3.20.0030.03712.02
4.3.10.0030.04012.02
4.3.00.0030.03712.02

preferences:
40.21 ms | 401 KiB | 5 Q