3v4l.org

run code in 300+ PHP versions simultaneously
<?php function pack_encode($val) { $str = array(); while ($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<256; $i++) { echo pack_encode($i*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)
8.3.60.0140.00318.68
8.3.50.0040.01422.84
8.3.40.0040.01118.84
8.3.30.0100.00319.18
8.3.20.0070.00020.34
8.3.10.0050.00321.89
8.3.00.0080.00017.75
8.2.180.0070.01316.63
8.2.170.0140.00022.96
8.2.160.0150.00020.39
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00020.87
8.2.110.0060.00320.87
8.2.100.0080.00417.84
8.2.90.0060.00317.84
8.2.80.0000.00917.97
8.2.70.0040.00417.63
8.2.60.0060.00617.92
8.2.50.0060.00318.07
8.2.40.0040.00418.22
8.2.30.0050.00517.93
8.2.20.0040.00417.81
8.2.10.0040.00418.18
8.2.00.0000.00717.86
8.1.280.0070.00725.92
8.1.270.0080.00023.91
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0060.00322.54
8.1.230.0090.00320.95
8.1.220.0080.00017.91
8.1.210.0080.00018.92
8.1.200.0030.00617.13
8.1.190.0000.00917.13
8.1.180.0050.00318.10
8.1.170.0040.00418.50
8.1.160.0000.00721.86
8.1.150.0020.00518.71
8.1.140.0040.00417.35
8.1.130.0030.00317.30
8.1.120.0000.00717.40
8.1.110.0040.00417.23
8.1.100.0030.00317.39
8.1.90.0040.00417.39
8.1.80.0000.00817.36
8.1.70.0030.00617.28
8.1.60.0040.00417.51
8.1.50.0030.00617.35
8.1.40.0040.00417.55
8.1.30.0050.00317.64
8.1.20.0030.00617.48
8.1.10.0000.00717.44
8.1.00.0080.00017.52
8.0.300.0040.00419.95
8.0.290.0050.00216.88
8.0.280.0070.00018.40
8.0.270.0030.00517.32
8.0.260.0030.00316.92
8.0.250.0000.00816.98
8.0.240.0070.00016.99
8.0.230.0080.00016.80
8.0.220.0000.00716.80
8.0.210.0070.00016.95
8.0.200.0070.00017.00
8.0.190.0030.00316.91
8.0.180.0000.00716.91
8.0.170.0050.00316.86
8.0.160.0030.00316.77
8.0.150.0000.00716.79
8.0.140.0040.00416.70
8.0.130.0030.00313.35
8.0.120.0050.00416.92
8.0.110.0000.00816.72
8.0.100.0030.00516.77
8.0.90.0000.00816.78
8.0.80.0090.01316.86
8.0.70.0070.00016.77
8.0.60.0070.00016.89
8.0.50.0030.00516.86
8.0.30.0130.00717.04
8.0.20.0080.01117.40
8.0.10.0040.00316.92
8.0.00.0120.00516.91
7.4.330.0000.00615.00
7.4.320.0050.00316.49
7.4.300.0060.00016.50
7.4.290.0080.00016.62
7.4.280.0060.00316.59
7.4.270.0040.00416.37
7.4.260.0040.00416.58
7.4.250.0040.00416.57
7.4.240.0000.00716.50
7.4.230.0050.00216.40
7.4.220.0140.00516.63
7.4.210.0120.00316.64
7.4.200.0070.00016.70
7.4.160.0110.00716.50
7.4.150.0090.01217.40
7.4.140.0120.01317.86
7.4.130.0130.01116.50
7.4.120.0110.00916.61
7.4.110.0090.00916.53
7.4.100.0120.01216.49
7.4.90.0140.00616.60
7.4.80.0160.01019.39
7.4.70.0150.00916.65
7.4.60.0060.01216.56
7.4.50.0030.00616.38
7.4.40.0160.00316.69
7.4.30.0080.01916.47
7.4.00.0120.00315.14
7.3.330.0030.00313.21
7.3.320.0030.00313.13
7.3.310.0070.00016.38
7.3.300.0030.00316.36
7.3.290.0100.00616.36
7.3.280.0060.01416.39
7.3.270.0080.01217.40
7.3.260.0190.00816.68
7.3.250.0190.00316.57
7.3.240.0190.00316.40
7.3.230.0090.00916.55
7.3.210.0180.00316.46
7.3.200.0120.01319.39
7.3.190.0070.01116.48
7.3.180.0060.01416.47
7.3.170.0160.00816.33
7.3.160.0120.01216.55
7.2.330.0200.00316.73
7.2.320.0070.01816.68
7.2.310.0080.01216.75
7.2.300.0060.01216.72
7.2.290.0110.01116.66
7.2.60.0070.00716.70
7.2.00.0000.01119.46
7.1.200.0030.01015.67
7.1.100.0030.00917.79
7.1.70.0000.01217.13
7.1.60.0130.01319.40
7.1.50.0110.01416.69
7.1.00.0070.07322.24
7.0.200.0000.00816.88
7.0.140.0100.07022.08
7.0.60.0100.05719.86
7.0.50.0070.03717.97
7.0.40.0100.05720.24
7.0.30.0200.04020.23
7.0.20.0230.04720.25
7.0.10.0100.09020.15
7.0.00.0030.04320.23
5.6.280.0030.07721.13
5.6.210.0000.05720.45
5.6.200.0130.06318.30
5.6.190.0000.09320.66
5.6.180.0330.04720.50
5.6.170.1500.04720.50
5.6.160.0100.09020.57
5.6.150.0070.08318.16
5.6.140.0100.07718.15
5.6.130.0100.05318.27
5.6.120.0030.07320.98
5.6.110.0100.08020.98
5.6.100.0100.05321.11
5.6.90.0100.08321.02
5.6.80.0000.04320.41
5.5.350.0230.07020.45
5.5.340.0070.04017.95
5.5.330.0070.04720.26
5.5.320.0230.07020.30
5.5.310.0270.07720.36
5.5.300.0130.06718.02
5.5.290.0070.04718.01
5.5.280.0070.08720.89
5.5.270.0030.05020.93
5.5.260.0070.07720.77
5.5.250.0000.08320.69
5.5.240.0000.08320.32
5.4.450.0870.05319.57
5.4.440.0870.04719.23
5.4.430.0770.05019.31
5.4.420.0600.07019.54
5.4.410.0770.07319.37
5.4.400.0300.05318.88
5.4.390.0330.06018.80
5.4.380.0070.05318.56
5.4.370.0130.05318.70
5.4.360.0030.05318.56
5.4.350.0110.04412.02
5.4.340.0100.04912.02
5.4.320.0070.03912.50
5.4.310.0070.04112.50
5.4.300.0070.04112.51
5.4.290.0050.04512.50
5.4.280.0120.05012.40
5.4.270.0070.04212.40
5.4.260.0040.04612.40
5.4.250.0050.04212.39
5.4.240.0060.03912.40
5.4.230.0090.03912.39
5.4.220.0040.04012.39
5.4.210.0080.03712.39
5.4.200.0070.04012.39
5.4.190.0070.03812.39
5.4.180.0090.04012.39
5.4.170.0090.04112.40
5.4.160.0080.04112.39
5.4.150.0060.04012.39
5.4.140.0100.03712.07
5.4.130.0060.03912.06
5.4.120.0070.03912.02
5.4.110.0080.03712.01
5.4.100.0070.03712.01
5.4.90.0060.04312.01
5.4.80.0120.03812.02
5.4.70.0020.04512.01
5.4.60.0140.03812.01
5.4.50.0080.06312.00
5.4.40.0100.04512.00
5.4.30.0120.04311.99
5.4.20.0080.03711.99
5.4.10.0080.04712.00
5.4.00.0070.04211.48
5.3.290.0080.04012.80
5.3.280.0090.04012.71
5.3.270.0120.04212.73
5.3.260.0100.05212.72
5.3.250.0110.04912.72
5.3.240.0100.03712.72
5.3.230.0040.04012.71
5.3.220.0090.03612.68
5.3.210.0080.04412.68
5.3.200.0080.05112.68
5.3.190.0050.04512.68
5.3.180.0100.05112.67
5.3.170.0060.03912.66
5.3.160.0120.03812.68
5.3.150.0060.04912.67
5.3.140.0090.04812.66
5.3.130.0110.03512.66
5.3.120.0070.03812.66
5.3.110.0050.04112.66
5.3.100.0070.03712.12
5.3.90.0050.04512.10
5.3.80.0080.04012.09
5.3.70.0100.03912.09
5.3.60.0080.03712.07
5.3.50.0050.04312.02
5.3.40.0070.03812.02
5.3.30.0040.04111.98
5.3.20.0050.03911.77
5.3.10.0090.03711.73
5.3.00.0060.03711.71
5.2.170.0050.0319.21
5.2.160.0070.0299.21
5.2.150.0070.0319.21
5.2.140.0090.0299.21
5.2.130.0040.0309.17
5.2.120.0060.0289.18
5.2.110.0060.0299.18
5.2.100.0040.0319.17
5.2.90.0090.0269.17
5.2.80.0050.0329.17
5.2.70.0070.0319.17
5.2.60.0050.0329.13
5.2.50.0080.0309.10
5.2.40.0050.0319.07
5.2.30.0050.0439.05
5.2.20.0080.0399.04
5.2.10.0040.0428.94
5.2.00.0090.0388.80
5.1.60.0080.0338.09
5.1.50.0060.0348.08
5.1.40.0070.0348.06
5.1.30.0120.0338.42
5.1.20.0050.0408.43
5.1.10.0040.0308.16
5.1.00.0040.0278.16
5.0.50.0070.0276.64
5.0.40.0090.0336.50
5.0.30.0070.0436.32
5.0.20.0030.0306.28
5.0.10.0070.0306.26
5.0.00.0050.0396.25
4.4.90.0030.0204.77
4.4.80.0050.0234.75
4.4.70.0030.0234.76
4.4.60.0040.0234.75
4.4.50.0090.0224.77
4.4.40.0050.0324.71
4.4.30.0040.0174.76
4.4.20.0040.0184.84
4.4.10.0040.0244.85
4.4.00.0030.0364.75
4.3.110.0030.0244.66
4.3.100.0030.0194.66
4.3.90.0010.0234.63
4.3.80.0070.0304.59
4.3.70.0040.0254.63
4.3.60.0040.0304.63
4.3.50.0030.0254.63
4.3.40.0050.0254.53
4.3.30.0020.0263.34
4.3.20.0050.0243.32
4.3.10.0060.0253.27
4.3.00.0170.0237.20

preferences:
53.57 ms | 401 KiB | 5 Q