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, $width, $bin) { $b64 = str_replace('_', '/', $bin); // un-padded $data = array_values(unpack($format, base64_decode($b64, false))); $val = 0; for ($i=0; $i<length($data); $i) { $val = ($val<<$width) | $data[$i]; } return $val; } function pack_encode_uint16($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', 16, $val); } function pack_decode_uint32($val) { return pack_decode('N', 32, $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)
8.3.60.0110.00416.50
8.3.50.0120.00522.89
8.3.40.0040.01518.79
8.3.30.0100.00319.22
8.3.20.0000.00720.22
8.3.10.0050.00321.77
8.3.00.0040.00417.50
8.2.180.0110.00816.84
8.2.170.0040.01122.96
8.2.160.0170.00022.26
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0130.00626.16
8.2.120.0060.00321.00
8.2.110.0030.00619.45
8.2.100.0090.00317.72
8.2.90.0000.00817.75
8.2.80.0000.00817.97
8.2.70.0000.00817.91
8.2.60.0040.00417.93
8.2.50.0000.00918.10
8.2.40.0050.00322.33
8.2.30.0000.00817.95
8.2.20.0000.00817.82
8.2.10.0030.00618.02
8.2.00.0050.00317.95
8.1.280.0110.00425.92
8.1.270.0080.00023.88
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00622.13
8.1.230.0100.00322.70
8.1.220.0040.00417.79
8.1.210.0030.00618.77
8.1.200.0030.00617.36
8.1.190.0060.00317.36
8.1.180.0060.00318.10
8.1.170.0000.00918.45
8.1.160.0040.00421.95
8.1.150.0000.00818.83
8.1.140.0040.00417.30
8.1.130.0000.00717.89
8.1.120.0000.00717.40
8.1.110.0000.00817.39
8.1.100.0030.00317.39
8.1.90.0000.00817.51
8.1.80.0020.00517.46
8.1.70.0040.00417.30
8.1.60.0090.00017.61
8.1.50.0040.00417.57
8.1.40.0040.00417.43
8.1.30.0060.00317.58
8.1.20.0000.00917.69
8.1.10.0000.00717.63
8.1.00.0030.00617.50
8.0.300.0040.00419.97
8.0.290.0060.00316.73
8.0.280.0040.00418.45
8.0.270.0060.00317.15
8.0.260.0030.00317.28
8.0.250.0040.00416.93
8.0.240.0070.00017.00
8.0.230.0000.00817.03
8.0.220.0070.00016.97
8.0.210.0000.00716.85
8.0.200.0050.00317.03
8.0.190.0050.00316.93
8.0.180.0040.00417.05
8.0.170.0000.00816.95
8.0.160.0040.00417.01
8.0.150.0040.00416.88
8.0.140.0070.00016.97
8.0.130.0060.00013.49
8.0.120.0030.00516.93
8.0.110.0050.00316.95
8.0.100.0030.00516.97
8.0.90.0040.00416.92
8.0.80.0000.01616.94
8.0.70.0070.00016.97
8.0.60.0040.00416.89
8.0.50.0040.00417.08
8.0.30.0100.01317.22
8.0.20.0120.01017.40
8.0.10.0000.00717.00
8.0.00.0080.01016.76
7.4.330.0060.00015.00
7.4.320.0030.00316.54
7.4.300.0000.00616.46
7.4.290.0050.00216.64
7.4.280.0000.00716.60
7.4.270.0030.00316.42
7.4.260.0070.00316.64
7.4.250.0070.00016.41
7.4.240.0030.00416.48
7.4.230.0030.00316.70
7.4.220.0100.01016.64
7.4.210.0070.01016.57
7.4.200.0040.00416.51
7.4.160.0040.01216.59
7.4.150.0070.01717.40
7.4.140.0080.01117.86
7.4.130.0060.01116.53
7.4.120.0030.01416.66
7.4.110.0040.01216.38
7.4.100.0000.01616.55
7.4.90.0070.01016.56
7.4.80.0090.00919.39
7.4.70.0130.00616.57
7.4.60.0110.00516.35
7.4.50.0030.00616.44
7.4.40.0080.01116.29
7.4.30.0080.00916.55
7.4.00.0090.00615.09
7.3.330.0030.00313.41
7.3.320.0000.00513.40
7.3.310.0030.00316.43
7.3.300.0000.00716.41
7.3.290.0000.01416.44
7.3.280.0110.00616.41
7.3.270.0250.00717.40
7.3.260.0100.01016.43
7.3.250.0100.00616.53
7.3.240.0160.00316.50
7.3.230.0100.00716.41
7.3.210.0090.01316.57
7.3.200.0070.01119.39
7.3.190.0090.01216.55
7.3.180.0110.00616.43
7.3.170.0110.00716.48
7.3.160.0090.01516.62
7.3.120.0030.01514.91
7.3.110.0030.01314.83
7.3.100.0030.01314.91
7.3.90.0000.01414.80
7.3.80.0000.01914.88
7.3.70.0100.00314.73
7.3.60.0000.01414.90
7.3.50.0100.00314.69
7.3.40.0080.00615.03
7.3.30.0070.00714.78
7.3.20.0070.00716.93
7.3.10.0070.00716.61
7.3.00.0030.00716.81
7.2.330.0130.00616.65
7.2.320.0100.00716.74
7.2.310.0120.00916.69
7.2.300.0070.01016.74
7.2.290.0080.00816.82
7.2.250.0090.00914.95
7.2.240.0100.00714.85
7.2.230.0100.00714.72
7.2.220.0000.01114.91
7.2.210.0130.00615.01
7.2.200.0070.01014.77
7.2.190.0090.00615.16
7.2.180.0040.01114.77
7.2.170.0090.00314.95
7.2.60.0100.00716.94
7.2.00.0040.00819.23
7.1.330.0030.01315.97
7.1.320.0110.00415.80
7.1.310.0050.00315.79
7.1.300.0090.00315.84
7.1.290.0080.00415.51
7.1.280.0040.01415.81
7.1.270.0130.00315.85
7.1.260.0090.00315.78
7.1.200.0130.00315.85
7.1.100.0000.01217.91
7.1.70.0060.00616.93
7.1.60.0070.01719.40
7.1.50.0040.00716.92
7.1.00.0030.07722.30
7.0.200.0030.00616.73
7.0.140.0070.06722.09
7.0.100.0070.04019.97
7.0.90.0070.04320.02
7.0.80.0000.04319.99
7.0.70.0030.03720.01
7.0.60.0000.04019.89
7.0.50.0030.06020.32
7.0.40.0100.03720.02
7.0.30.0000.05320.07
7.0.20.0030.04320.14
7.0.10.0070.07320.07
7.0.00.0030.04320.07
5.6.280.0030.07721.12
5.6.250.0000.05020.73
5.6.240.0070.04020.60
5.6.230.0100.03320.64
5.6.220.0070.03020.50
5.6.210.0000.07020.63
5.6.200.0030.07020.97
5.6.190.0070.05721.18
5.6.180.0100.08321.02
5.6.170.0000.04321.11
5.6.160.0170.03021.08
5.6.150.0070.05021.09
5.6.140.0100.03721.03
5.6.130.0030.04721.04
5.6.120.0170.03021.05
5.6.110.0100.03720.94
5.6.100.0100.04021.02
5.6.90.0070.04021.16
5.6.80.0070.03720.46
5.6.70.0000.04720.34
5.6.60.0070.03020.47
5.6.50.0030.04020.36
5.6.40.0030.03320.44
5.6.30.0030.04720.41
5.6.20.0070.03720.33
5.6.10.0030.03320.50
5.6.00.0000.04320.52
5.5.380.0030.03320.34
5.5.370.0000.04320.58
5.5.360.0030.03320.51
5.5.350.0100.02720.45
5.5.340.0070.03720.88
5.5.330.0070.07320.88
5.5.320.0100.03320.89
5.5.310.0030.05720.77
5.5.300.0000.04720.90
5.5.290.0070.04720.92
5.5.280.0070.05020.81
5.5.270.0000.04720.64
5.5.260.0030.04320.88
5.5.250.0000.03720.46
5.5.240.0070.04720.27
5.5.230.0000.04320.28
5.5.220.0130.02320.20
5.5.210.0000.04320.15
5.5.200.0030.04020.25
5.5.190.0000.04320.23
5.5.180.0030.04020.20
5.5.160.0070.03720.20
5.5.150.0070.04320.13
5.5.140.0100.04020.22
5.5.130.0030.05020.00
5.5.120.0000.08320.24
5.5.110.0170.05720.26
5.5.100.0200.07020.11
5.5.90.0130.06019.98
5.5.80.0100.04020.08
5.5.70.0130.07320.07
5.5.60.0100.07720.07
5.5.50.0130.07020.16
5.5.40.0100.04020.10
5.5.30.0100.03720.06
5.5.20.0100.06720.00
5.5.10.0100.05320.05
5.5.00.0100.06320.13
5.4.450.0070.03719.49
5.4.440.0100.03719.20
5.4.430.0030.04319.36
5.4.420.0030.04019.36
5.4.410.0130.02719.10
5.4.400.0030.03319.18
5.4.390.0030.04019.05
5.4.380.0000.04018.86
5.4.370.0070.03719.21
5.4.360.0000.04319.05
5.4.350.0030.03719.18
5.4.340.0030.03719.14
5.4.320.0130.03318.90
5.4.310.0100.07319.14
5.4.300.0070.07719.14
5.4.290.0000.07319.05
5.4.280.0130.06318.85
5.4.270.0030.07718.92
5.4.260.0170.07018.98
5.4.250.0130.07019.12
5.4.240.0070.06718.92
5.4.230.0100.06319.04
5.4.220.0100.07719.11
5.4.210.0130.06319.09
5.4.200.0130.06019.13
5.4.190.0030.05019.03
5.4.180.0030.04719.12
5.4.170.0030.07319.17
5.4.160.0000.04718.83
5.4.150.0030.04018.88
5.4.140.0070.07316.51
5.4.130.0130.03316.48
5.4.120.0130.06716.35
5.4.110.0000.07316.32
5.4.100.0030.07016.45
5.4.90.0030.07016.40
5.4.80.0200.05716.56
5.4.70.0200.06016.40
5.4.60.0230.06316.41
5.4.50.0130.06316.48
5.4.40.0070.07016.45
5.4.30.0100.06716.36
5.4.20.0070.07016.33
5.4.10.0000.07716.32
5.4.00.0000.07715.95
5.3.290.0070.07714.71
5.3.280.0070.04014.67
5.3.270.0170.05714.57
5.3.260.0100.07314.61
5.3.250.0030.07314.65
5.3.240.0070.07714.59
5.3.230.0070.07714.73
5.3.220.0000.06014.60
5.3.210.0230.06014.69
5.3.200.0070.04314.61
5.3.190.0100.07314.61
5.3.180.0070.07314.54
5.3.170.0100.06714.70
5.3.160.0000.08314.63
5.3.150.0070.04714.50
5.3.140.0070.05714.54
5.3.130.0100.07714.53
5.3.120.0100.07714.70
5.3.110.0070.06314.53
5.3.100.0070.07314.17
5.3.90.0170.07013.95
5.3.80.0030.04313.93
5.3.70.0130.04314.17
5.3.60.0130.06314.10
5.3.50.0030.08313.89
5.3.40.0130.06013.86
5.3.30.0130.06714.06
5.3.20.0070.06713.77
5.3.10.0070.06713.79
5.3.00.0070.05713.63
5.2.170.0000.05311.18
5.2.160.0030.06311.08
5.2.150.0070.04011.03
5.2.140.0100.03011.09
5.2.130.0100.05311.01
5.2.120.0000.06311.18
5.2.110.0030.04311.11
5.2.100.0100.06011.18
5.2.90.0100.05311.11
5.2.80.0070.04711.22
5.2.70.0070.04011.06
5.2.60.0070.04711.12
5.2.50.0100.05711.10
5.2.40.0030.05011.02
5.2.30.0030.03011.09
5.2.20.0100.05310.89
5.2.10.0070.05710.89
5.2.00.0070.05710.86
5.1.60.0100.04710.48
5.1.50.0070.05310.48
5.1.40.0030.02710.48
5.1.30.0100.02310.48
5.1.20.0070.05710.48
5.1.10.0100.04710.48
5.1.00.0070.04010.48
5.0.50.0070.03310.48
5.0.40.0070.04010.48
5.0.30.0030.04310.48
5.0.20.0000.03710.48
5.0.10.0030.02710.48
5.0.00.0030.05010.48
4.4.90.0030.02310.48
4.4.80.0030.02310.48
4.4.70.0000.02710.48
4.4.60.0030.01710.48
4.4.50.0000.02710.48
4.4.40.0000.03010.48
4.4.30.0070.03310.48
4.4.20.0000.02010.48
4.4.10.0000.03710.48
4.4.00.0000.02710.48
4.3.110.0070.03310.48
4.3.100.0070.03010.48
4.3.90.0070.02310.48
4.3.80.0030.03010.48
4.3.70.0000.01710.48
4.3.60.0070.03310.48
4.3.50.0000.02010.48
4.3.40.0030.05310.48
4.3.30.0000.03710.48
4.3.20.0000.01710.48
4.3.10.0030.03010.48
4.3.00.0000.03310.48

preferences:
46.03 ms | 401 KiB | 5 Q