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($enc)+2 > strlen($val)) { echo "\"$enc\" $val WORSE\n"; } else if (strlen($enc)+2 == 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)
8.3.40.0060.01218.72
8.3.30.0030.01019.21
8.3.20.0040.00420.33
8.3.10.0040.00421.85
8.3.00.0050.00319.25
8.2.170.0140.00722.96
8.2.160.0110.00422.09
8.2.150.0100.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00421.05
8.2.110.0060.00322.13
8.2.100.0100.00617.78
8.2.90.0030.00619.34
8.2.80.0030.00517.97
8.2.70.0040.00417.59
8.2.60.0050.00318.05
8.2.50.0030.00618.07
8.2.40.0060.00318.34
8.2.30.0070.00018.14
8.2.20.0040.00417.88
8.2.10.0000.00718.27
8.2.00.0040.00417.84
8.1.270.0040.00423.78
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00623.71
8.1.230.0070.00319.09
8.1.220.0060.00317.76
8.1.210.0060.00318.77
8.1.200.0060.00317.35
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0060.00318.41
8.1.160.0030.00522.04
8.1.150.0040.00419.03
8.1.140.0040.00417.47
8.1.130.0030.00317.97
8.1.120.0030.00617.40
8.1.110.0030.00517.34
8.1.100.0040.00417.50
8.1.90.0070.00017.48
8.1.80.0080.00017.43
8.1.70.0000.00717.45
8.1.60.0030.00617.66
8.1.50.0040.00417.47
8.1.40.0040.00417.53
8.1.30.0060.00317.75
8.1.20.0000.00817.63
8.1.10.0000.00717.64
8.1.00.0050.00317.46
8.0.300.0000.00818.77
8.0.290.0040.00416.75
8.0.280.0040.00418.37
8.0.270.0030.00717.16
8.0.260.0100.00017.19
8.0.250.0040.00416.90
8.0.240.0000.00617.02
8.0.230.0070.00016.95
8.0.220.0040.00416.91
8.0.210.0000.00816.96
8.0.200.0000.00617.04
8.0.190.0030.00616.87
8.0.180.0000.00817.00
8.0.170.0040.00416.85
8.0.160.0000.00816.92
8.0.150.0040.00416.79
8.0.140.0040.00416.85
8.0.130.0030.00313.30
8.0.120.0050.00316.91
8.0.110.0030.00516.93
8.0.100.0040.00416.94
8.0.90.0000.00716.80
8.0.80.0060.01216.98
8.0.70.0040.00416.97
8.0.60.0040.00416.73
8.0.50.0040.00417.06
8.0.30.0140.00517.08
8.0.20.0140.00817.40
8.0.10.0000.00617.09
8.0.00.0070.01416.71
7.4.330.0050.00015.09
7.4.320.0030.00316.71
7.4.300.0060.00016.64
7.4.290.0000.00716.49
7.4.280.0000.00716.48
7.4.270.0000.00716.57
7.4.260.0070.00016.66
7.4.250.0030.00616.53
7.4.240.0020.00516.58
7.4.230.0070.00016.77
7.4.220.0110.00716.55
7.4.210.0030.01016.52
7.4.200.0000.00716.68
7.4.160.0000.01516.78
7.4.150.0110.00717.40
7.4.140.0080.01017.86
7.4.130.0180.00316.46
7.4.120.0130.00716.58
7.4.110.0090.00816.39
7.4.100.0070.01016.36
7.4.90.0100.00716.59
7.4.80.0050.01519.39
7.4.70.0060.01016.70
7.4.60.0070.01016.75
7.4.50.0000.00616.46
7.4.40.0100.00716.21
7.4.30.0070.01016.45
7.4.00.0040.01114.89
7.3.330.0000.00613.27
7.3.320.0030.00313.29
7.3.310.0000.00716.44
7.3.300.0030.00316.43
7.3.290.0060.00916.43
7.3.280.0040.01316.35
7.3.270.0090.00917.40
7.3.260.0100.01316.54
7.3.240.0060.01216.63
7.3.230.0130.00316.64
7.3.210.0040.01416.48
7.3.200.0120.01119.39
7.3.190.0190.00016.70
7.3.180.0090.00616.50
7.3.170.0130.01016.40
7.3.160.0090.00616.34
7.2.330.0110.00716.67
7.2.320.0100.00716.79
7.2.310.0090.00916.78
7.2.300.0060.00916.72
7.2.290.0040.01216.57
7.2.00.0060.00919.25
7.1.200.0030.01215.43
7.1.100.0000.01117.95
7.1.70.0070.00316.92
7.1.60.0000.01119.40
7.1.50.0150.00616.66
7.1.00.0070.07322.44
7.0.200.0000.00716.53
7.0.140.0030.07322.00
7.0.60.0170.07319.88
7.0.50.0100.04717.89
7.0.40.0130.07320.27
7.0.30.0300.08320.11
7.0.20.0230.04020.25
7.0.10.0000.05720.33
7.0.00.0030.04320.05
5.6.280.0030.07321.14
5.6.210.0130.03020.62
5.6.200.0030.08018.29
5.6.190.0030.04720.46
5.6.180.0300.08020.63
5.6.170.0270.04020.55
5.6.160.0270.05320.50
5.6.150.0070.06018.19
5.6.140.0100.06718.28
5.6.130.0070.04018.13
5.6.120.0070.06021.09
5.6.110.0030.04020.90
5.6.100.0100.08021.01
5.6.90.0170.04720.89
5.6.80.0030.08720.52
5.5.350.0100.07720.31
5.5.340.0130.08017.94
5.5.330.0070.03720.57
5.5.320.0270.05320.36
5.5.310.0330.04320.52
5.5.300.0030.04017.95
5.5.290.0100.05318.08
5.5.280.0200.07020.79
5.5.270.0030.09020.90
5.5.260.0070.05320.90
5.5.250.0100.07320.70
5.5.240.3130.03720.14
5.4.450.0430.04319.64
5.4.440.0200.04019.39
5.4.430.0500.05019.47
5.4.420.0400.05019.64
5.4.410.0370.04319.39
5.4.400.0170.03319.32
5.4.390.0870.04719.09
5.4.380.0270.05318.74
5.4.370.0130.05318.74
5.4.360.0100.05718.74
5.4.350.0200.05018.69
5.4.340.0230.04318.64
5.4.320.0050.03712.52
5.4.310.0080.03712.52
5.4.300.0070.03612.52
5.4.290.0050.03912.52
5.4.280.0120.03012.41
5.4.270.0070.03612.41
5.4.260.0030.04112.42
5.4.250.0040.04012.41
5.4.240.0020.04012.41
5.4.230.0070.03712.41
5.4.220.0060.03712.41
5.4.210.0060.03612.41
5.4.200.0070.03812.40
5.4.190.0060.03812.40
5.4.180.0050.03712.40
5.4.170.0110.04812.41
5.4.160.0040.05112.41
5.4.150.0050.03912.40
5.4.140.0040.04112.08
5.4.130.0090.03312.08
5.4.120.0070.03912.03
5.4.110.0040.03812.03
5.4.100.0050.03712.03
5.4.90.0050.03912.02
5.4.80.0040.04012.03
5.4.70.0050.03512.03
5.4.60.0040.03612.03
5.4.50.0030.03712.02
5.4.40.0070.03312.01
5.4.30.0050.03512.00
5.4.20.0090.03312.00
5.4.10.0060.03612.01
5.4.00.0070.03611.50
5.3.290.0040.04112.80
5.3.280.0120.04612.71
5.3.270.0070.05712.72
5.3.260.0070.04012.71
5.3.250.0060.03812.72
5.3.240.0110.03812.71
5.3.230.0060.03812.71
5.3.220.0030.04012.68
5.3.210.0060.03912.68
5.3.200.0060.03812.68
5.3.190.0100.03512.67
5.3.180.0070.03612.68
5.3.170.0070.03512.67
5.3.160.0070.03512.67
5.3.150.0050.03912.67
5.3.140.0060.03712.67
5.3.130.0040.04112.65
5.3.120.0050.04012.66
5.3.110.0030.04112.65
5.3.100.0040.03812.14
5.3.90.0070.03512.12
5.3.80.0060.03612.12
5.3.70.0030.03912.11
5.3.60.0040.03912.10
5.3.50.0110.03212.05
5.3.40.0040.04012.05
5.3.30.0060.03512.01
5.3.20.0040.03711.79
5.3.10.0050.03511.75
5.3.00.0060.03711.74
5.2.170.0080.0289.24
5.2.160.0040.0299.24
5.2.150.0030.0329.25
5.2.140.0050.0359.24
5.2.130.0060.0289.20
5.2.120.0050.0289.20
5.2.110.0030.0319.20
5.2.100.0020.0319.21
5.2.90.0040.0319.21
5.2.80.0060.0359.20
5.2.70.0070.0439.20
5.2.60.0090.0489.16
5.2.50.0070.0329.13
5.2.40.0050.0299.11
5.2.30.0040.0359.07
5.2.20.0040.0339.06
5.2.10.0060.0318.97
5.2.00.0030.0318.84
5.1.60.0040.0358.12
5.1.50.0040.0358.11
5.1.40.0070.0288.09
5.1.30.0040.0318.44
5.1.20.0040.0318.46
5.1.10.0040.0288.19
5.1.00.0040.0278.20
5.0.50.0050.0196.68
5.0.40.0040.0186.55
5.0.30.0040.0306.35
5.0.20.0060.0176.32
5.0.10.0060.0186.30
5.0.00.0040.0306.30
4.4.90.0020.0164.78
4.4.80.0020.0154.75
4.4.70.0000.0184.76
4.4.60.0020.0164.75
4.4.50.0040.0144.77
4.4.40.0040.0244.71
4.4.30.0030.0154.76
4.4.20.0040.0154.84
4.4.10.0020.0174.85
4.4.00.0000.0284.76
4.3.110.0030.0164.67
4.3.100.0010.0174.66
4.3.90.0020.0154.64
4.3.80.0020.0274.59
4.3.70.0030.0154.63
4.3.60.0020.0164.63
4.3.50.0030.0224.63
4.3.40.0020.0254.54
4.3.30.0030.0163.35
4.3.20.0020.0173.32
4.3.10.0030.0153.28
4.3.00.0030.01315.90

preferences:
40.35 ms | 400 KiB | 5 Q