3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!='; $base = strlen($chars); $str = ''; while ($val > 0) { $str .= $chars[$val % $base]; $val = (int)($val / $base); } return $str; } function gdr_decode($str) { $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!='; $base = strlen($chars); $map = array(); for ($i=0; $i<$base; $i++) { $map[$chars[$i]] = $i; } echo '$str ' . print_r($str, true) . "\n"; echo 'strlen($str) ' . print_r(strlen($str), true) . "\n"; $val = 0; for ($i=0; $i<strlen($str); $i++) { $val *= $base; $char = $str[$i]; echo '$char ' . print_r($char, true) . "\n"; $k = $map[$char]; echo '$k ' . print_r($k, true) . "\n"; $val += (int)$map[$str[$i]]; echo '$val ' . print_r($val, true) . "\n"; } return $val; } //$vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296); $vals = array(1); foreach ($vals as $val) { $enc = gdr_encode($val); $dec = gdr_decode($enc); if (strlen($enc) > strlen($val)) { echo "$enc $val WORSE\n"; } else if (strlen($enc) == strlen($val)) { echo "$enc $val EQUAL\n"; } else { echo "$enc $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)
8.3.60.0110.00716.63
8.3.50.0110.00723.00
8.3.40.0170.00018.79
8.3.30.0040.01119.27
8.3.20.0040.00420.39
8.3.10.0040.00423.44
8.3.00.0030.00519.38
8.2.180.0060.01018.31
8.2.170.0030.01022.96
8.2.160.0100.00322.26
8.2.150.0030.00724.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0100.00021.04
8.2.110.0060.00322.11
8.2.100.0070.00417.91
8.2.90.0040.00419.02
8.2.80.0030.00617.97
8.2.70.0080.00017.75
8.2.60.0080.00018.05
8.2.50.0040.00418.07
8.2.40.0060.00318.22
8.2.30.0000.00818.13
8.2.20.0050.00317.77
8.2.10.0070.00018.01
8.2.00.0020.00517.82
8.1.280.0030.01725.92
8.1.270.0030.00524.01
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0030.00623.84
8.1.230.0090.00319.03
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0030.00717.23
8.1.190.0060.00317.35
8.1.180.0030.00618.10
8.1.170.0080.00018.57
8.1.160.0000.00822.03
8.1.150.0040.00418.94
8.1.140.0070.00017.41
8.1.130.0070.00017.75
8.1.120.0000.00717.50
8.1.110.0080.00017.42
8.1.100.0000.00717.46
8.1.90.0000.00817.36
8.1.80.0040.00417.43
8.1.70.0070.00017.39
8.1.60.0030.00617.62
8.1.50.0040.00417.54
8.1.40.0020.00517.55
8.1.30.0080.00017.60
8.1.20.0050.00317.66
8.1.10.0000.00717.62
8.1.00.0000.00717.49
8.0.300.0000.00818.77
8.0.290.0070.00016.63
8.0.280.0000.00718.46
8.0.270.0040.00617.18
8.0.260.0080.00017.30
8.0.250.0030.00316.94
8.0.240.0000.00716.85
8.0.230.0000.00716.94
8.0.220.0040.00416.87
8.0.210.0030.00316.81
8.0.200.0070.00016.96
8.0.190.0030.00516.98
8.0.180.0000.00716.90
8.0.170.0030.00516.91
8.0.160.0040.00416.84
8.0.150.0000.00716.75
8.0.140.0000.00716.86
8.0.130.0030.00313.27
8.0.120.0050.00316.88
8.0.110.0040.00416.89
8.0.100.0000.00716.68
8.0.90.0040.00417.00
8.0.80.0100.00716.90
8.0.70.0000.00716.78
8.0.60.0070.00016.78
8.0.50.0000.00716.93
8.0.30.0140.00817.11
8.0.20.0060.01417.40
8.0.10.0000.00716.89
8.0.00.0070.01116.88
7.4.330.0020.00215.01
7.4.320.0000.00616.55
7.4.300.0000.00716.61
7.4.290.0000.00716.52
7.4.280.0000.00916.66
7.4.270.0030.00316.52
7.4.260.0000.00716.61
7.4.250.0050.00316.54
7.4.240.0050.00216.55
7.4.230.0070.00016.63
7.4.220.0060.01216.63
7.4.210.0070.00716.67
7.4.200.0000.00816.37
7.4.160.0060.01016.61
7.4.150.0120.00917.40
7.4.140.0130.00517.86
7.4.130.0080.00916.50
7.4.120.0130.01116.50
7.4.110.0080.00816.29
7.4.100.0160.00616.64
7.4.90.0030.01316.40
7.4.80.0160.00319.39
7.4.70.0100.00716.48
7.4.60.0160.00316.58
7.4.50.0070.00016.64
7.4.40.0120.00916.35
7.4.30.0130.00316.35
7.4.00.0030.01314.80
7.3.330.0060.00013.39
7.3.320.0030.00313.47
7.3.310.0000.00716.36
7.3.300.0000.00716.41
7.3.290.0070.00716.39
7.3.280.0100.00716.40
7.3.270.0130.00417.40
7.3.260.0140.00316.42
7.3.250.0080.01116.52
7.3.240.0090.00916.77
7.3.230.0170.00716.71
7.3.210.0000.01616.50
7.3.200.0120.00919.39
7.3.190.0120.00916.31
7.3.180.0080.00816.62
7.3.170.0160.00016.41
7.3.160.0120.00416.49
7.2.330.0070.01116.71
7.2.320.0000.01616.81
7.2.310.0100.00716.87
7.2.300.0080.00816.49
7.2.290.0110.00616.72
7.2.00.0000.01219.09
7.1.100.0000.01117.93
7.1.70.0030.00617.09
7.1.60.0060.01219.40
7.1.50.0040.01817.02
7.1.00.0070.07322.57
7.0.200.0040.00416.87
7.0.140.0030.07322.21
7.0.60.0070.07719.88
7.0.50.0000.05017.97
7.0.40.0100.08020.09
7.0.30.0270.07720.34
7.0.20.0300.06020.05
7.0.10.0130.04020.09
7.0.00.0070.03720.08
5.6.280.0000.07721.07
5.6.210.0100.04020.60
5.6.200.0170.07718.29
5.6.190.0070.04020.77
5.6.180.0470.04020.50
5.6.170.0300.04020.55
5.6.160.0130.08020.57
5.6.150.0070.06718.15
5.6.140.0030.08318.29
5.6.130.0070.08018.18
5.6.120.0030.07321.02
5.6.110.0070.04320.99
5.6.100.0130.08321.00
5.6.90.0100.05720.99
5.6.80.0330.06020.27
5.5.350.0070.08320.40
5.5.340.0070.04718.05
5.5.330.0070.04020.32
5.5.320.0270.04020.30
5.5.310.0270.05320.32
5.5.300.0030.04718.02
5.5.290.0030.05717.95
5.5.280.0070.05720.99
5.5.270.0100.08320.89
5.5.260.0100.05320.98
5.5.250.0070.08320.59
5.5.240.3030.03320.27
5.4.450.0400.04019.28
5.4.440.0330.04719.43
5.4.430.0300.05719.53
5.4.420.0430.04019.54
5.4.410.0300.04019.30
5.4.400.0500.04019.17
5.4.390.0370.03719.13
5.4.380.0130.05718.66
5.4.370.0100.05718.68
5.4.360.0130.06718.74
5.4.350.0170.06318.69
5.4.340.0070.05718.54
5.4.320.0080.03712.52
5.4.310.0080.03612.52
5.4.300.0040.04112.52
5.4.290.0080.03712.52
5.4.280.0070.03612.41
5.4.270.0070.04012.41
5.4.260.0040.04012.41
5.4.250.0080.04312.41
5.4.240.0070.04812.41
5.4.230.0050.04012.41
5.4.220.0070.04212.41
5.4.210.0070.03812.41
5.4.200.0070.04512.41
5.4.190.0040.03912.41
5.4.180.0070.03512.40
5.4.170.0100.03212.41
5.4.160.0050.03612.41
5.4.150.0040.03712.41
5.4.140.0060.03712.09
5.4.130.0020.03912.07
5.4.120.0050.03612.04
5.4.110.0040.03712.03
5.4.100.0030.03712.02
5.4.90.0070.03612.03
5.4.80.0080.03812.02
5.4.70.0050.03512.03
5.4.60.0090.03212.03
5.4.50.0060.03512.02
5.4.40.0030.03812.01
5.4.30.0040.03712.00
5.4.20.0060.03412.00
5.4.10.0030.03812.01
5.4.00.0050.03711.50
5.3.290.0100.04212.80
5.3.280.0060.03712.71
5.3.270.0040.04112.72
5.3.260.0060.04512.72
5.3.250.0070.03712.72
5.3.240.0090.03412.72
5.3.230.0060.03812.71
5.3.220.0060.03812.68
5.3.210.0050.04412.68
5.3.200.0090.04112.68
5.3.190.0060.04012.68
5.3.180.0070.03712.68
5.3.170.0050.03812.67
5.3.160.0030.03912.67
5.3.150.0090.03512.67
5.3.140.0050.03812.66
5.3.130.0080.03712.66
5.3.120.0090.03712.66
5.3.110.0080.03612.65
5.3.100.0060.03812.14
5.3.90.0080.03512.13
5.3.80.0060.03612.11
5.3.70.0040.03812.12
5.3.60.0050.03712.10
5.3.50.0050.03612.05
5.3.40.0080.03412.05
5.3.30.0050.03512.01
5.3.20.0100.03111.79
5.3.10.0080.03311.75
5.3.00.0070.03611.74
5.2.170.0050.0309.24
5.2.160.0080.0259.25
5.2.150.0020.0329.25
5.2.140.0040.0309.24
5.2.130.0040.0299.20
5.2.120.0040.0299.20
5.2.110.0050.0299.21
5.2.100.0020.0319.21
5.2.90.0080.0339.21
5.2.80.0040.0309.20
5.2.70.0040.0319.20
5.2.60.0030.0319.16
5.2.50.0070.0319.13
5.2.40.0050.0389.11
5.2.30.0040.0329.07
5.2.20.0040.0309.07
5.2.10.0090.0258.97
5.2.00.0040.0308.84
5.1.60.0010.0278.11
5.1.50.0050.0248.11
5.1.40.0070.0218.09
5.1.30.0020.0288.44
5.1.20.0030.0278.46
5.1.10.0030.0288.19
5.1.00.0050.0248.20
5.0.50.0020.0236.68
5.0.40.0030.0326.54
5.0.30.0040.0336.35
5.0.20.0030.0216.32
5.0.10.0060.0206.30
5.0.00.0030.0326.29
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0030.0164.75
4.4.60.0050.0134.75
4.4.50.0020.0184.77
4.4.40.0030.0264.71
4.4.30.0000.0184.76
4.4.20.0020.0174.84
4.4.10.0040.0154.85
4.4.00.0010.0274.76
4.3.110.0050.0144.66
4.3.100.0040.0144.66
4.3.90.0030.0194.63
4.3.80.0020.0254.59
4.3.70.0020.0164.63
4.3.60.0020.0164.62
4.3.50.0040.0144.62
4.3.40.0040.0234.54
4.3.30.0030.0153.34
4.3.20.0040.0203.32
4.3.10.0050.0193.27
4.3.00.0070.01015.90

preferences:
40.79 ms | 401 KiB | 5 Q