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<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)
8.3.60.0100.00718.23
8.3.50.0130.00322.75
8.3.40.0130.01018.84
8.3.30.0070.00719.22
8.3.20.0080.00020.30
8.3.10.0080.00021.73
8.3.00.0090.00017.46
8.2.180.0030.01618.06
8.2.170.0070.00722.96
8.2.160.0100.00620.36
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0060.00326.16
8.2.120.0060.00320.87
8.2.110.0100.00022.07
8.2.100.0030.00919.70
8.2.90.0030.00519.21
8.2.80.0060.00317.97
8.2.70.0060.00317.63
8.2.60.0040.00418.03
8.2.50.0030.00518.07
8.2.40.0080.00018.28
8.2.30.0030.00618.18
8.2.20.0030.00517.62
8.2.10.0050.00318.23
8.2.00.0000.00817.75
8.1.280.0120.00325.92
8.1.270.0080.00023.93
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00023.85
8.1.230.0060.00619.10
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0060.00317.22
8.1.190.0000.00817.23
8.1.180.0030.00618.10
8.1.170.0000.00818.62
8.1.160.0040.00421.96
8.1.150.0050.00218.88
8.1.140.0050.00317.41
8.1.130.0000.00717.82
8.1.120.0000.00917.46
8.1.110.0060.00317.38
8.1.100.0000.00717.34
8.1.90.0040.00417.35
8.1.80.0000.00817.51
8.1.70.0040.00417.41
8.1.60.0000.00917.60
8.1.50.0040.00417.42
8.1.40.0000.00817.48
8.1.30.0030.00617.64
8.1.20.0030.00517.64
8.1.10.0040.00417.38
8.1.00.0000.00817.37
8.0.300.0040.00418.77
8.0.290.0030.00616.75
8.0.280.0070.00018.42
8.0.270.0070.00217.20
8.0.260.0030.00317.16
8.0.250.0000.00716.84
8.0.240.0000.00816.89
8.0.230.0000.00716.93
8.0.220.0030.00316.92
8.0.210.0000.00716.73
8.0.200.0000.00716.99
8.0.190.0030.00316.93
8.0.180.0000.00716.82
8.0.170.0080.00016.77
8.0.160.0050.00316.79
8.0.150.0000.00716.85
8.0.140.0000.00816.89
8.0.130.0070.00013.20
8.0.120.0100.00016.84
8.0.110.0000.00716.89
8.0.100.0080.00016.73
8.0.90.0020.00516.86
8.0.80.0110.01216.95
8.0.70.0040.00417.00
8.0.60.0040.00416.61
8.0.50.0000.00816.79
8.0.30.0190.00317.17
8.0.20.0120.00917.40
8.0.10.0050.00316.73
8.0.00.0110.00716.83
7.4.330.0000.00515.00
7.4.320.0070.00016.53
7.4.300.0060.00016.52
7.4.290.0080.00016.53
7.4.280.0050.00416.50
7.4.270.0000.00716.61
7.4.260.0000.00716.53
7.4.250.0040.00416.51
7.4.240.0040.00416.58
7.4.230.0030.00316.68
7.4.220.0100.00916.42
7.4.210.0090.00616.66
7.4.200.0000.00716.35
7.4.160.0080.01116.70
7.4.150.0090.01317.40
7.4.140.0110.01017.86
7.4.130.0140.00716.53
7.4.120.0080.01216.44
7.4.110.0150.00316.50
7.4.100.0190.00416.61
7.4.90.0130.00616.48
7.4.80.0100.01319.39
7.4.70.0100.00916.49
7.4.60.0130.01016.48
7.4.50.0060.00016.39
7.4.40.0090.00916.53
7.4.30.0070.01716.67
7.4.10.0120.00615.56
7.4.00.0080.00915.44
7.3.330.0060.00013.37
7.3.320.0050.00013.22
7.3.310.0070.00016.25
7.3.300.0030.00316.17
7.3.290.0120.00316.34
7.3.280.0140.00716.30
7.3.270.0030.01617.40
7.3.260.0080.01316.46
7.3.250.0100.00916.49
7.3.240.0060.01616.50
7.3.230.0130.00616.39
7.3.210.0120.00616.37
7.3.200.0160.00819.39
7.3.190.0040.01516.45
7.3.180.0030.01316.30
7.3.170.0080.01116.48
7.3.160.0170.00516.57
7.3.130.0100.00915.79
7.3.120.0060.01115.57
7.3.110.0070.00715.71
7.3.100.0040.01215.49
7.3.90.0120.00715.65
7.3.80.0030.01015.71
7.3.70.0080.00815.50
7.3.60.0030.01315.60
7.3.50.0070.00715.60
7.3.40.0080.00515.56
7.3.30.0060.00815.50
7.3.20.0040.01117.52
7.3.10.0050.01017.22
7.3.00.0070.00417.25
7.2.330.0090.00916.88
7.2.320.0130.00616.79
7.2.310.0050.01316.71
7.2.300.0110.00816.53
7.2.290.0070.01416.81
7.2.260.0060.01315.95
7.2.250.0050.01515.95
7.2.240.0100.00515.59
7.2.230.0090.00815.81
7.2.220.0110.00815.93
7.2.210.0060.01015.68
7.2.200.0050.01015.70
7.2.190.0070.01215.86
7.2.180.0080.00915.84
7.2.170.0050.00915.84
7.2.160.0070.01115.71
7.2.150.0100.00517.54
7.2.140.0060.00817.61
7.2.130.0020.01017.29
7.2.120.0110.00417.41
7.2.110.0060.00817.37
7.2.100.0040.01017.43
7.2.90.0050.01017.48
7.2.80.0050.01017.36
7.2.70.0080.00817.47
7.2.60.0060.00817.41
7.2.50.0020.01217.46
7.2.40.0080.00617.55
7.2.30.0070.00817.57
7.2.20.0030.01017.45
7.2.10.0070.00717.45
7.2.00.0020.01217.80
7.1.330.0050.00916.54
7.1.320.0060.01016.27
7.1.310.0090.00616.57
7.1.300.0080.00816.59
7.1.290.0050.00716.62
7.1.280.0040.00916.60
7.1.270.0090.00716.56
7.1.260.0080.00516.48
7.1.250.0040.01016.19
7.1.240.0060.00716.54
7.1.230.0100.00816.72
7.1.220.0020.01216.62
7.1.210.0060.00916.50
7.1.200.0080.00716.49
7.1.190.0020.00916.46
7.1.180.0060.00616.54
7.1.170.0060.01116.67
7.1.160.0090.00316.49
7.1.150.0050.00916.57
7.1.140.0050.00916.58
7.1.130.0110.00216.55
7.1.120.0060.00616.61
7.1.110.0090.00916.58
7.1.100.0050.01217.13
7.1.90.0100.00616.48
7.1.80.0050.01016.74
7.1.70.0040.01016.80
7.1.60.0110.00717.48
7.1.50.0070.00816.75
7.1.40.0020.01216.65
7.1.30.0020.00916.52
7.1.20.0020.01216.62
7.1.10.0050.00616.43
7.1.00.0050.03218.64
7.0.330.0050.00416.19
7.0.320.0060.00616.33
7.0.310.0050.00816.28
7.0.300.0080.00616.17
7.0.290.0110.00616.20
7.0.280.0020.01216.24
7.0.270.0050.01016.16
7.0.260.0080.00916.28
7.0.250.0150.00216.32
7.0.240.0030.00816.26
7.0.230.0050.00816.31
7.0.220.0100.00416.33
7.0.210.0030.01216.18
7.0.200.0030.00916.51
7.0.190.0020.01116.13
7.0.180.0080.00616.32
7.0.170.0030.01216.24
7.0.160.0060.00816.15
7.0.150.0010.01316.15
7.0.140.0080.02918.18
7.0.130.0060.00716.08
7.0.120.0060.00716.25
7.0.110.0020.01316.21
7.0.100.0090.00616.21
7.0.90.0070.00616.07
7.0.80.0000.01216.20
7.0.70.0060.00916.38
7.0.60.0020.03317.46
7.0.50.0080.01616.79
7.0.40.0090.02416.25
7.0.30.0070.02016.32
7.0.20.0160.02916.27
7.0.10.0090.02916.32
7.0.00.0010.02316.30
5.6.400.0050.01015.23
5.6.390.0050.01015.23
5.6.380.0080.01015.19
5.6.370.0080.00715.33
5.6.360.0090.00615.38
5.6.350.0030.01514.98
5.6.340.0000.01015.13
5.6.330.0120.00515.34
5.6.320.0100.00714.82
5.6.310.0080.00715.09
5.6.300.0050.00715.14
5.6.290.0070.00715.15
5.6.280.0080.03017.23
5.6.270.0060.00815.14
5.6.260.0110.00315.21
5.6.250.0030.01015.30
5.6.240.0050.01015.12
5.6.230.0090.00715.18
5.6.220.0050.01115.18
5.6.210.0080.03116.97
5.6.200.0050.02416.13
5.6.190.0070.01916.89
5.6.180.0080.03216.93
5.6.170.0460.02516.85
5.6.160.0110.02716.91
5.6.150.0080.03016.08
5.6.140.0050.02616.16
5.6.130.0030.03616.16
5.6.120.0040.03717.04
5.6.110.0080.03517.13
5.6.100.0070.03617.12
5.6.90.0060.02317.01
5.6.80.0040.02116.84
5.6.70.0070.00914.90
5.6.60.0100.00914.87
5.6.50.0050.01015.12
5.6.40.0060.00914.93
5.6.30.0070.01015.08
5.6.20.0080.00315.01
5.6.10.0060.00615.25
5.6.00.0070.00615.17
5.5.380.0070.00915.21
5.5.370.0030.01114.92
5.5.360.0050.01315.18
5.5.350.0210.02216.92
5.5.340.0060.03216.08
5.5.330.0060.03416.84
5.5.320.0090.02216.91
5.5.310.0180.02516.68
5.5.300.0100.02016.11
5.5.290.0070.03216.04
5.5.280.0110.03017.01
5.5.270.0070.02917.13
5.5.260.0060.03317.04
5.5.250.0070.03416.83
5.5.240.0020.02416.78
5.5.230.0070.01315.14
5.5.220.0080.01015.03
5.5.210.0060.00715.26
5.5.200.0100.00515.09
5.5.190.0040.01115.10
5.5.180.0040.00815.22
5.5.170.0060.00914.89
5.5.160.0120.00515.19
5.5.150.0000.01315.04
5.5.140.0020.01415.01
5.5.130.0080.00814.99
5.5.120.0030.01215.09
5.5.110.0080.00615.11
5.5.100.0030.01315.01
5.5.90.0080.00914.95
5.5.80.0040.01115.07
5.5.70.0070.00715.09
5.5.60.0040.00814.96
5.5.50.0080.00815.07
5.5.40.0070.00715.06
5.5.30.0090.00314.89
5.5.20.0070.00815.04
5.5.10.0060.00415.02
5.5.00.0070.00814.93
5.4.450.0310.02314.78
5.4.440.0240.02614.75
5.4.430.0230.02414.73
5.4.420.0290.02314.69
5.4.410.0370.02214.86
5.4.400.0140.02014.45
5.4.390.0220.02914.35
5.4.380.0080.02214.45
5.4.370.0080.02314.54
5.4.360.0100.02714.42
5.4.350.0070.02312.30
5.4.340.0060.01912.32
5.4.330.0020.00912.45
5.4.320.0040.01912.49
5.4.310.0050.02412.44
5.4.300.0080.02412.47
5.4.290.0070.01912.43
5.4.280.0060.02312.46
5.4.270.0080.02512.52
5.4.260.0030.02712.47
5.4.250.0070.02212.33
5.4.240.0090.02312.33
5.4.230.0050.02212.43
5.4.220.0070.01812.43
5.4.210.0070.01712.40
5.4.200.0040.02412.33
5.4.190.0050.02312.44
5.4.180.0070.02112.35
5.4.170.0070.02112.34
5.4.160.0050.01712.33
5.4.150.0050.01712.43
5.4.140.0030.02112.31
5.4.130.0050.01812.36
5.4.120.0020.01912.30
5.4.110.0080.01412.27
5.4.100.0040.01812.29
5.4.90.0050.01912.31
5.4.80.0050.02312.34
5.4.70.0070.01912.33
5.4.60.0040.02012.27
5.4.50.0060.02012.31
5.4.40.0060.02112.32
5.4.30.0060.01612.19
5.4.20.0090.01712.29
5.4.10.0040.01812.23
5.4.00.0050.01912.14
5.3.290.0080.01712.36
5.3.280.0060.01912.36
5.3.270.0070.02212.40
5.3.260.0050.02112.40
5.3.250.0040.01812.41
5.3.240.0030.02612.33
5.3.230.0040.02512.36
5.3.220.0080.02112.25
5.3.210.0050.02212.30
5.3.200.0050.01612.32
5.3.190.0060.01612.34
5.3.180.0050.02112.37
5.3.170.0070.01912.37
5.3.160.0060.01612.39
5.3.150.0060.01612.38
5.3.140.0070.01712.36
5.3.130.0040.02312.36
5.3.120.0040.02112.35
5.3.110.0040.02712.36
5.3.100.0070.02012.16
5.3.90.0060.02212.19
5.3.80.0080.02112.12
5.3.70.0070.02112.06
5.3.60.0070.02012.10
5.3.50.0050.02112.14
5.3.40.0030.02512.10
5.3.30.0070.02112.13
5.3.20.0040.02312.03
5.3.10.0040.01811.97
5.3.00.0050.02011.88
5.2.170.0060.0409.22
5.2.160.0060.0449.22
5.2.150.0040.0459.21
5.2.140.0030.0479.21
5.2.130.0060.0309.17
5.2.120.0070.0399.18
5.2.110.0060.0369.18
5.2.100.0080.0319.18
5.2.90.0050.0309.17
5.2.80.0060.0349.16
5.2.70.0060.0359.17
5.2.60.0050.0309.13
5.2.50.0030.0339.10
5.2.40.0030.0329.07
5.2.30.0070.0299.04
5.2.20.0040.0369.04
5.2.10.0040.0318.94
5.2.00.0050.0388.80
5.1.60.0080.0258.09
5.1.50.0050.0298.09
5.1.40.0070.0248.06
5.1.30.0060.0288.41
5.1.20.0040.0308.43
5.1.10.0060.0268.16
5.1.00.0040.0278.16
5.0.50.0050.0226.64
5.0.40.0050.0206.50
5.0.30.0090.0296.31
5.0.20.0020.0316.28
5.0.10.0010.0266.26
5.0.00.0060.0416.25
4.4.90.0060.0154.78
4.4.80.0040.0164.76
4.4.70.0050.0224.76
4.4.60.0030.0234.75
4.4.50.0050.0224.77
4.4.40.0040.0364.71
4.4.30.0090.0214.76
4.4.20.0040.0224.84
4.4.10.0060.0254.85
4.4.00.0070.0314.76
4.3.110.0040.0174.67
4.3.100.0020.0214.67
4.3.90.0070.0134.64
4.3.80.0020.0284.59
4.3.70.0060.0134.63
4.3.60.0050.0144.63
4.3.50.0010.0194.63
4.3.40.0130.0424.54
4.3.30.0040.0203.30
4.3.20.0040.0223.28
4.3.10.0020.0203.24
4.3.00.0200.0307.20

preferences:
38.79 ms | 401 KiB | 5 Q