3v4l.org

run code in 300+ PHP versions simultaneously
<?php function pack_encode($format, $val) { $b64 = base64_encode(pack($format, $val)); return str_replace(array('/', '='), array('_', ''), $b64); // "/" json-encodes poorly and "=" is padding } function pack_decode($format, $val) { $b64 = str_replace('_', '/', $val); // un-padded $bytes = unpack($format, base64_decode($b64, false)); return print_r($bytes, false); //return "foo"; // return $hi << 8 | $lo; } function pack_encode_uint16($val) { return pack_encode('n', $val); } function pack_encode_uint32($val) { return pack_encode('N', $val); } function pack_decode_uint16($val) { return pack_decode('n', $val); } function pack_decode_uint32($val) { return pack_decode('N', $val); } $max = 32767; $n = 20; $step = intval($max/$n); for ($i=0; $i<=$n; $i++) { $val = $i*$step; $enc16 = pack_encode_uint16($val); $enc32 = pack_encode_uint32($val); $str = base64_encode(strval($val)); // STUPID echo "$enc16 $enc32 $str $val"; $dec16 = pack_decode_uint16($enc16); $dec32 = pack_decode_uint32($enc32); if ($dec16 != $val) { echo " $dec16 != $val"; } else if ($dec32 != $val) { echo " $dec32 != $val"; } echo "\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)
8.3.60.0110.00416.75
8.3.50.0160.00322.85
8.3.40.0120.00618.54
8.3.30.0090.00618.90
8.3.20.0040.00420.25
8.3.10.0040.00421.69
8.3.00.0040.00417.38
8.2.180.0140.00416.38
8.2.170.0090.00622.96
8.2.160.0100.00322.11
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0000.00820.77
8.2.110.0070.00422.03
8.2.100.0120.00017.79
8.2.90.0050.00318.22
8.2.80.0000.00817.97
8.2.70.0000.00818.03
8.2.60.0000.00817.63
8.2.50.0060.00317.55
8.2.40.0040.00417.75
8.2.30.0000.00817.70
8.2.20.0000.00817.70
8.2.10.0030.00618.14
8.2.00.0000.00817.75
8.1.280.0060.00925.92
8.1.270.0080.00023.97
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00323.83
8.1.230.0080.00420.87
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0030.00617.55
8.1.190.0000.00919.01
8.1.180.0050.00518.10
8.1.170.0080.00017.62
8.1.160.0030.00618.94
8.1.150.0000.00718.95
8.1.140.0040.00417.36
8.1.130.0000.00717.84
8.1.120.0080.00017.37
8.1.110.0000.00817.50
8.1.100.0000.00717.45
8.1.90.0040.00417.40
8.1.80.0040.00417.47
8.1.70.0030.00617.48
8.1.60.0000.00817.41
8.1.50.0000.00817.52
8.1.40.0000.00817.45
8.1.30.0040.00417.54
8.1.20.0000.00917.68
8.1.10.0050.00317.52
8.1.00.0040.00417.46
8.0.300.0040.00420.07
8.0.290.0050.00316.75
8.0.280.0040.00418.13
8.0.270.0030.00618.01
8.0.260.0000.00617.27
8.0.250.0040.00416.84
8.0.240.0030.00316.96
8.0.230.0030.00316.92
8.0.220.0040.00416.89
8.0.210.0050.00316.83
8.0.200.0000.00716.91
8.0.190.0030.00616.98
8.0.180.0000.00716.91
8.0.170.0030.00516.92
8.0.160.0000.00716.95
8.0.150.0000.00816.84
8.0.140.0040.00416.77
8.0.130.0060.00013.27
8.0.120.0080.00316.88
8.0.110.0040.00416.82
8.0.100.0030.00516.68
8.0.90.0070.00016.93
8.0.80.0070.01316.96
8.0.70.0040.00416.85
8.0.60.0040.00417.02
8.0.50.0070.00016.78
8.0.30.0120.00817.20
8.0.20.0090.01117.40
8.0.10.0030.00616.83
8.0.00.0090.01116.77
7.4.330.0020.00215.14
7.4.320.0000.00616.62
7.4.300.0030.00316.61
7.4.290.0000.00716.51
7.4.280.0040.00416.48
7.4.270.0070.00016.53
7.4.260.0110.00016.63
7.4.250.0000.00816.46
7.4.240.0050.00316.42
7.4.230.0070.00016.36
7.4.220.0070.01016.68
7.4.210.0090.00616.64
7.4.200.0030.00316.59
7.4.160.0040.01316.47
7.4.150.0060.01317.40
7.4.140.0070.01417.86
7.4.130.0130.00716.55
7.4.120.0120.00916.32
7.4.110.0060.01016.46
7.4.100.0030.01416.54
7.4.90.0110.00816.63
7.4.80.0170.00619.39
7.4.70.0070.01516.35
7.4.60.0080.00916.49
7.4.50.0040.00016.52
7.4.40.0070.01016.29
7.4.30.0150.00316.63
7.4.00.0080.01014.83
7.3.330.0030.00313.40
7.3.320.0000.00613.38
7.3.310.0030.00316.36
7.3.300.0040.00416.37
7.3.290.0070.01016.39
7.3.280.0080.00816.35
7.3.270.0150.00417.40
7.3.260.0160.00416.48
7.3.250.0090.00916.56
7.3.240.0100.01016.50
7.3.230.0030.01616.51
7.3.210.0110.01116.45
7.3.200.0130.01019.39
7.3.190.0000.01916.28
7.3.180.0060.00916.50
7.3.170.0090.00816.61
7.3.160.0090.00616.43
7.3.120.0040.01114.68
7.3.110.0000.01915.20
7.3.100.0090.00914.91
7.3.90.0090.00614.79
7.3.80.0060.00914.77
7.3.70.0120.00614.80
7.3.60.0040.01114.85
7.3.50.0000.01414.95
7.3.40.0040.00814.61
7.3.30.0100.00715.00
7.3.20.0070.00716.40
7.3.10.0080.00516.41
7.3.00.0060.00716.72
7.2.330.0100.01116.84
7.2.320.0120.00616.70
7.2.310.0070.01116.88
7.2.300.0110.00716.63
7.2.290.0060.01216.71
7.2.250.0060.01315.07
7.2.240.0060.01214.94
7.2.230.0040.01415.13
7.2.220.0030.00914.90
7.2.210.0030.01414.93
7.2.200.0030.01315.03
7.2.190.0130.00314.90
7.2.180.0090.00615.30
7.2.170.0030.01215.20
7.2.160.0030.01415.22
7.2.150.0100.00716.59
7.2.140.0190.00016.65
7.2.130.0080.00916.73
7.2.120.0120.00316.65
7.2.110.0100.00516.66
7.2.100.0070.00716.77
7.2.90.0020.01116.69
7.2.80.0050.00616.83
7.2.70.0070.00516.77
7.2.60.0110.01216.66
7.2.50.0060.00516.81
7.2.40.0040.01116.83
7.2.30.0070.00716.87
7.2.20.0110.00516.88
7.2.10.0050.00816.80
7.2.00.0020.01117.65
7.1.330.0060.01015.93
7.1.320.0090.00615.85
7.1.310.0120.00315.84
7.1.300.0070.01015.92
7.1.290.0090.00915.84
7.1.280.0000.01415.92
7.1.270.0090.00615.84
7.1.260.0070.01015.80
7.1.250.0050.01115.76
7.1.240.0040.01115.60
7.1.230.0030.00915.86
7.1.220.0080.00815.67
7.1.210.0070.00415.89
7.1.200.0090.00415.54
7.1.190.0070.00715.88
7.1.180.0100.00015.72
7.1.170.0040.00715.61
7.1.160.0070.00715.76
7.1.150.0150.00015.82
7.1.140.0030.00616.02
7.1.130.0040.01115.96
7.1.120.0040.00415.92
7.1.110.0110.00415.84
7.1.100.0050.00516.82
7.1.90.0030.01515.83
7.1.80.0030.01015.79
7.1.70.0060.00316.48
7.1.60.0060.01317.70
7.1.50.0050.01116.53
7.1.40.0100.00715.89
7.1.30.0060.00615.68
7.1.20.0060.01015.74
7.1.10.0090.00615.91
7.1.00.0050.04019.15
7.0.330.0100.00715.59
7.0.320.0040.01415.42
7.0.310.0040.00715.53
7.0.300.0090.00315.21
7.0.290.0030.00915.24
7.0.280.0070.00715.19
7.0.270.0040.00715.47
7.0.260.0080.00415.49
7.0.250.0000.00915.55
7.0.240.0060.00315.65
7.0.230.0110.00415.59
7.0.220.0030.00615.50
7.0.210.0040.01115.52
7.0.200.0030.00716.20
7.0.190.0100.00715.46
7.0.180.0070.00715.51
7.0.170.0030.01015.56
7.0.160.0070.01115.49
7.0.150.0070.00315.14
7.0.140.0070.03318.69
7.0.130.0060.00615.41
7.0.120.0100.00315.51
7.0.110.0050.00515.34
7.0.100.0040.01115.45
7.0.90.0000.00815.50
7.0.80.0070.01015.45
7.0.70.0060.00915.48
7.0.60.0060.03117.71
7.0.50.0030.03016.74
7.0.40.0100.02216.83
7.0.30.0150.04416.94
7.0.20.0150.02516.73
7.0.10.0070.02416.89
7.0.00.0080.04416.93
5.6.400.0070.01014.22
5.6.390.0140.00314.73
5.6.380.0070.00714.66
5.6.370.0080.00514.24
5.6.360.0030.01114.22
5.6.350.0030.01114.64
5.6.340.0060.00914.33
5.6.330.0090.00614.54
5.6.320.0090.00614.34
5.6.310.0060.00614.42
5.6.300.0070.00714.57
5.6.290.0090.00614.33
5.6.280.0050.04117.54
5.6.270.0060.00614.30
5.6.260.0060.00914.41
5.6.250.0070.00414.49
5.6.240.0030.01014.61
5.6.230.0100.00314.33
5.6.220.0040.01114.35
5.6.210.0090.04417.54
5.6.200.0070.04316.23
5.6.190.0030.02717.50
5.6.180.0230.03717.37
5.6.170.0070.04217.38
5.6.160.0100.04217.53
5.6.150.0070.04316.17
5.6.140.0020.02616.32
5.6.130.0080.04416.37
5.6.120.0050.03017.61
5.6.110.0100.04317.68
5.6.100.0070.04317.60
5.6.90.0080.04417.59
5.6.80.0080.02817.31
5.6.70.0090.00614.30
5.6.60.0030.01014.11
5.6.50.0060.00614.05
5.6.40.0000.01514.00
5.6.30.0120.00614.19
5.6.20.0030.01214.19
5.6.10.0070.00714.32
5.6.00.0120.00314.19
5.5.380.0030.01314.28
5.5.370.0090.00914.23
5.5.360.0160.00014.51
5.5.350.0150.03717.37
5.5.340.0090.03816.16
5.5.330.0050.03717.38
5.5.320.0200.02517.36
5.5.310.0170.03217.26
5.5.300.0020.02816.21
5.5.290.0070.02716.08
5.5.280.0100.03517.55
5.5.270.0030.05217.50
5.5.260.0030.04617.63
5.5.250.0030.04217.31
5.5.240.0040.03417.16
5.5.230.0060.00914.38
5.5.220.0070.00314.02
5.5.210.0060.01014.29
5.5.200.0040.01113.97
5.5.190.0000.01514.22
5.5.180.0030.01014.21
5.5.170.0060.00614.37
5.5.160.0070.01014.38
5.5.150.0090.00614.16
5.5.140.0000.01514.08
5.5.130.0000.01414.34
5.5.120.0070.01114.13
5.5.110.0130.00314.18
5.5.100.0030.01214.52
5.5.90.0070.00413.96
5.5.80.0070.00714.36
5.5.70.0100.01014.41
5.5.60.0040.00814.20
5.5.50.0040.01114.13
5.5.40.0040.00714.04
5.5.30.0030.01013.87
5.5.20.0000.01413.96
5.5.10.0110.00414.01
5.5.00.0000.01513.93
5.4.450.0360.03616.07
5.4.440.0420.03615.97
5.4.430.0420.03315.96
5.4.420.0430.03215.98
5.4.410.0440.02315.91
5.4.400.0430.03715.76
5.4.390.0380.03415.66
5.4.380.0110.03215.63
5.4.370.0100.02315.46
5.4.360.0110.02315.50
5.4.350.0100.01712.24
5.4.340.0070.02012.23
5.4.330.0000.01412.45
5.4.320.0050.02412.48
5.4.310.0050.03212.48
5.4.300.0080.02912.48
5.4.290.0020.02912.48
5.4.280.0050.02312.43
5.4.270.0040.02412.43
5.4.260.0120.02012.43
5.4.250.0070.02712.43
5.4.240.0080.01912.43
5.4.230.0070.02312.43
5.4.220.0050.02112.43
5.4.210.0070.02012.43
5.4.200.0070.01912.42
5.4.190.0070.02212.42
5.4.180.0070.02012.42
5.4.170.0080.01812.43
5.4.160.0060.02112.43
5.4.150.0040.02312.43
5.4.140.0060.02312.27
5.4.130.0050.02312.26
5.4.120.0040.02612.24
5.4.110.0050.03012.24
5.4.100.0060.02812.24
5.4.90.0060.02312.24
5.4.80.0090.02112.24
5.4.70.0070.02012.24
5.4.60.0050.02112.23
5.4.50.0020.02612.23
5.4.40.0070.01912.22
5.4.30.0070.02112.22
5.4.20.0070.02112.22
5.4.10.0060.02312.22
5.4.00.0060.02811.97
5.3.290.0090.02212.62
5.3.280.0090.02512.58
5.3.270.0070.02612.58
5.3.260.0070.02212.58
5.3.250.0040.02312.58
5.3.240.0050.02412.58
5.3.230.0060.02212.58
5.3.220.0050.02512.56
5.3.210.0030.02712.56
5.3.200.0060.02312.56
5.3.190.0070.01912.56
5.3.180.0080.02012.56
5.3.170.0080.02012.56
5.3.160.0060.02012.56
5.3.150.0040.02312.56
5.3.140.0050.02512.55
5.3.130.0040.02312.55
5.3.120.0040.02512.55
5.3.110.0050.02212.55
5.3.100.0100.01912.29
5.3.90.0060.01812.28
5.3.80.0050.02212.27
5.3.70.0090.01812.28
5.3.60.0040.02312.27
5.3.50.0040.02312.24
5.3.40.0070.02812.24
5.3.30.0040.03112.22
5.3.20.0040.02212.11
5.3.10.0050.02312.09
5.3.00.0080.02512.09
5.2.170.0070.0299.24
5.2.160.0060.0299.24
5.2.150.0050.0319.24
5.2.140.0070.0299.24
5.2.130.0050.0339.20
5.2.120.0070.0339.20
5.2.110.0090.0349.21
5.2.100.0080.0329.20
5.2.90.0080.0309.20
5.2.80.0070.0369.19
5.2.70.0060.0369.19
5.2.60.0080.0309.15
5.2.50.0050.0329.12
5.2.40.0040.0309.10
5.2.30.0090.0269.07
5.2.20.0030.0359.06
5.2.10.0060.0358.96
5.2.00.0060.0308.82
5.1.60.0050.0258.12
5.1.50.0050.0258.11
5.1.40.0040.0278.09
5.1.30.0070.0258.44
5.1.20.0030.0288.46
5.1.10.0070.0248.19
5.1.00.0040.0308.19
5.0.50.0070.0186.66
5.0.40.0040.0206.53
5.0.30.0020.0356.34
5.0.20.0060.0266.30
5.0.10.0070.0196.28
5.0.00.0010.0456.27
4.4.90.0050.0304.78
4.4.80.0020.0184.75
4.4.70.0030.0184.76
4.4.60.0030.0234.76
4.4.50.0060.0214.77
4.4.40.0030.0284.70
4.4.30.0010.0254.76
4.4.20.0040.0224.84
4.4.10.0060.0154.85
4.4.00.0050.0274.76
4.3.110.0040.0204.67
4.3.100.0030.0164.66
4.3.90.0050.0174.64
4.3.80.0050.0304.59
4.3.70.0050.0204.63
4.3.60.0050.0134.63
4.3.50.0070.0164.63
4.3.40.0020.0264.54
4.3.30.0020.0173.33
4.3.20.0030.0163.30
4.3.10.0030.0163.26
4.3.00.0100.0277.21

preferences:
57.36 ms | 401 KiB | 5 Q