3v4l.org

run code in 300+ PHP versions simultaneously
<?php $digits = array(0,1,2,3,4,5,6,7,7,8,9,'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'); $base = count($digits); function enc($val) { $str = ''; if (0 === $val) { return '0'; } if (0 > $val) { $str = '-'; $val = -$val; } $digits = $GLOBALS['digits']; $base = $GLOBALS['base']; while (0 < $val) { $str .= $digits[$val % $base]; $val = (int)($val / $base); } return $str; } function gdr_encode($val) { $bin = ''; while ($val > 0) { $bin .= chr($val & 0xFF); $val >>= 8; } return str_replace(array('/', '='), array('_', ''), base64_encode($bin)); } function gdr_decode($str) { $bin = base64_decode(str_replace('_', '/', $str)); $val = 0; for ($i=strlen($bin)-1; $i>=0; $i--) { $val |= ord($bin[$i]) << $i*8; } return $val; } if (!function_exists('json_encode')) { // crappy json_encode function that can handle our narrow input function json_encode($val) { if (is_string($val)) { return "\"$val\""; } if (is_int($val)) { return strval($val); } return "???"; } } $vals = array(0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, 100000, 999999, 1000000, 4294967295, 4294967296); foreach ($vals as $val) { $enc = json_encode(gdr_encode($val)); $dec = json_encode(gdr_decode($enc)); $val = json_encode($val); $enc2 = json_encode(enc($val)); if (strlen($enc) > strlen($val)) { echo "$enc $val $enc2 WORSE\n"; } else if (strlen($enc) == strlen($val)) { echo "$enc $val $enc2 EQUAL\n"; } else { echo "$enc $val $enc2\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)
8.3.60.0090.00918.43
8.3.50.0100.00722.87
8.3.40.0120.00318.97
8.3.30.0060.00919.23
8.3.20.0070.00020.34
8.3.10.0000.00821.90
8.3.00.0060.00317.38
8.2.180.0190.00018.54
8.2.170.0110.00422.96
8.2.160.0030.01020.47
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0090.00926.16
8.2.120.0040.00421.15
8.2.110.0100.00019.26
8.2.100.0090.00317.91
8.2.90.0080.00019.22
8.2.80.0040.00417.97
8.2.70.0030.00617.63
8.2.60.0050.00318.05
8.2.50.0090.00018.10
8.2.40.0060.00318.28
8.2.30.0000.00718.04
8.2.20.0050.00317.78
8.2.10.0040.00418.20
8.2.00.0030.00517.70
8.1.280.0070.00725.92
8.1.270.0080.00023.96
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0060.00323.80
8.1.230.0080.00317.83
8.1.220.0030.00517.77
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0050.00317.10
8.1.180.0030.00618.10
8.1.170.0070.00318.50
8.1.160.0000.00721.97
8.1.150.0040.00418.87
8.1.140.0040.00417.36
8.1.130.0000.00717.90
8.1.120.0040.00417.50
8.1.110.0030.00517.38
8.1.100.0000.00717.52
8.1.90.0000.00717.51
8.1.80.0000.00717.40
8.1.70.0060.00317.49
8.1.60.0090.00017.54
8.1.50.0060.00317.55
8.1.40.0000.01017.59
8.1.30.0030.00617.62
8.1.20.0000.00817.67
8.1.10.0040.00417.48
8.1.00.0040.00417.50
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0040.00418.52
8.0.270.0000.00817.34
8.0.260.0060.00317.34
8.0.250.0000.00817.00
8.0.240.0000.00717.00
8.0.230.0000.00816.95
8.0.220.0030.00516.83
8.0.210.0000.00716.98
8.0.200.0030.00316.98
8.0.190.0070.00017.03
8.0.180.0040.00316.85
8.0.170.0040.00416.92
8.0.160.0040.00416.80
8.0.150.0050.00216.89
8.0.140.0000.00816.94
8.0.130.0000.00513.34
8.0.120.0050.00316.79
8.0.110.0000.00716.94
8.0.100.0070.00016.82
8.0.90.0000.00716.82
8.0.80.0100.00716.91
8.0.70.0070.00016.95
8.0.60.0080.00016.83
8.0.50.0030.00516.80
8.0.30.0080.01317.00
8.0.20.0090.01017.40
8.0.10.0040.00416.90
8.0.00.0110.00616.87
7.4.330.0020.00215.00
7.4.320.0060.00016.45
7.4.300.0030.00316.45
7.4.290.0030.00316.54
7.4.280.0000.00816.63
7.4.270.0070.00016.63
7.4.260.0060.00316.53
7.4.250.0040.00416.49
7.4.240.0050.00316.62
7.4.230.0000.00716.43
7.4.220.0150.00316.65
7.4.210.0000.01416.46
7.4.200.0030.00316.44
7.4.160.0060.00916.49
7.4.150.0090.00917.40
7.4.140.0090.01217.86
7.4.130.0070.01116.54
7.4.120.0150.00516.53
7.4.110.0100.00716.61
7.4.100.0130.00716.45
7.4.90.0150.00316.46
7.4.80.0090.01619.39
7.4.70.0090.01416.47
7.4.60.0070.00916.49
7.4.50.0050.00016.38
7.4.40.0090.01116.51
7.4.30.0070.01016.36
7.4.00.0070.01015.13
7.3.330.0060.00013.39
7.3.320.0000.00513.32
7.3.310.0030.00316.42
7.3.300.0030.00316.44
7.3.290.0030.01016.39
7.3.280.0070.01316.39
7.3.270.0150.00317.40
7.3.260.0040.01316.45
7.3.250.0080.00916.37
7.3.240.0060.01216.61
7.3.230.0100.00716.72
7.3.210.0110.00716.69
7.3.200.0130.01119.39
7.3.190.0110.00616.57
7.3.180.0060.01516.36
7.3.170.0030.01316.45
7.3.160.0120.01216.41
7.2.330.0060.01216.81
7.2.320.0080.00816.76
7.2.310.0110.00716.84
7.2.300.0100.00716.45
7.2.290.0100.00716.63
7.2.00.0080.00819.24
7.1.200.0100.00315.92
7.1.100.0040.00717.84
7.1.70.0040.00417.30
7.1.60.0130.01319.40
7.1.50.0070.01816.70
7.1.00.0000.07722.37
7.0.200.0040.00416.54
7.0.140.0070.07322.01
7.0.90.0700.06719.93
7.0.80.0600.07319.97
7.0.70.0530.08719.94
7.0.60.0770.06720.11
7.0.50.0600.07020.38
7.0.40.0100.07720.14
7.0.30.0170.03719.95
7.0.20.0130.07020.04
7.0.10.0070.08320.09
7.0.00.0130.07020.17
5.6.280.0100.06721.10
5.6.240.0270.05720.54
5.6.230.0030.06320.74
5.6.220.0100.07320.61
5.6.210.0070.07720.77
5.6.200.0100.05021.09
5.6.190.0030.09321.15
5.6.180.0100.07721.16
5.6.170.0100.07321.07
5.6.160.0130.08021.11
5.6.150.0070.07021.07
5.6.140.0000.07021.07
5.6.130.0100.08321.11
5.6.120.0000.09021.06
5.6.110.0070.08321.07
5.6.100.0100.08321.06
5.6.90.0230.07021.08
5.6.80.0130.05020.52
5.6.70.0030.08020.54
5.6.60.0000.04720.46
5.6.50.0070.04720.37
5.6.40.0070.07720.46
5.6.30.0100.07020.46
5.6.20.0100.05020.55
5.6.10.0030.04320.33
5.6.00.0100.04720.39
5.5.380.0100.08020.37
5.5.370.0070.04720.49
5.5.360.0100.03720.56
5.5.350.0000.04720.46
5.5.340.0070.08320.81
5.5.330.0100.07020.92
5.5.320.0130.04720.80
5.5.310.0070.08320.82
5.5.300.0070.07320.87
5.5.290.0100.07320.90
5.5.280.0070.04020.64
5.5.270.0030.09320.82
5.5.260.0130.08020.75
5.5.250.0070.07020.60
5.5.240.0130.06320.33
5.5.230.0100.05020.20
5.5.220.0000.04720.20
5.5.210.0030.07720.20
5.5.200.0130.07020.27
5.5.190.0030.05720.02
5.5.180.0030.08719.98
5.5.160.0100.03720.11
5.5.150.0030.08020.27
5.5.140.0170.06720.25
5.5.130.0170.03320.13
5.5.120.0070.03720.02
5.5.110.0100.07320.30
5.5.100.0030.04320.14
5.5.90.0100.05319.97
5.5.80.0070.04020.10
5.5.70.0000.04320.19
5.5.60.0070.03320.13
5.5.50.0070.03320.07
5.5.40.0030.04020.09
5.5.30.0000.04320.10
5.5.20.0100.07020.22
5.5.10.0100.07020.09
5.5.00.0070.04719.99
5.4.450.0030.08019.26
5.4.440.0070.04319.38
5.4.430.0000.09019.46
5.4.420.0130.07719.37
5.4.410.0030.08719.23
5.4.400.0100.06719.05
5.4.390.0070.08319.09
5.4.380.0100.07018.85
5.4.370.0170.06319.21
5.4.360.0030.05019.20
5.4.350.0130.07019.18
5.4.340.0030.08019.21
5.4.320.0070.07719.23
5.4.310.0100.05018.85
5.4.300.0100.06319.13
5.4.290.0000.05319.23
5.4.280.0000.04319.04
5.4.270.0070.03719.23
5.4.260.0070.07319.03
5.4.250.0000.04718.93
5.4.240.0100.05719.04
5.4.230.0070.04018.87
5.4.220.0000.04018.89
5.4.210.0030.04319.04
5.4.200.0000.04019.08
5.4.190.0030.03718.95
5.4.180.0100.07019.11
5.4.170.0030.07319.11
5.4.160.0130.02719.13
5.4.150.0070.07719.10
5.4.140.0030.03016.48
5.4.130.0000.03716.50
5.4.120.0100.02716.33
5.4.110.0030.03716.39
5.4.100.0030.03016.41
5.4.90.0030.03716.55
5.4.80.0000.04016.43
5.4.70.0030.03316.43
5.4.60.0130.02716.49
5.4.50.0030.03316.48
5.4.40.0030.03716.53
5.4.30.0030.03716.45
5.4.20.0030.03316.31
5.4.10.0100.03316.41
5.4.00.0000.03315.84
5.3.290.0100.04014.81
5.3.280.0100.06314.61
5.3.270.0070.05014.75
5.3.260.0030.03314.77
5.3.250.0030.07014.79
5.3.240.0000.04314.61
5.3.230.0000.04314.57
5.3.220.0030.04014.64
5.3.210.0100.03014.61
5.3.200.0000.03314.64
5.3.190.0000.04014.75
5.3.180.0030.03314.61
5.3.170.0100.03714.70
5.3.160.0000.04014.59
5.3.150.0000.04714.62
5.3.140.0000.04014.55
5.3.130.0100.03314.61
5.3.120.0000.04314.54
5.3.110.0070.03314.59
5.3.100.0030.03714.02
5.3.90.0030.03714.07
5.3.80.0000.04313.98
5.3.70.0030.03314.14
5.3.60.0100.03014.09
5.3.50.0030.03713.89
5.3.40.0000.05014.07
5.3.30.0030.03013.88
5.3.20.0030.05313.66
5.3.10.0030.06313.81
5.3.00.0070.03313.60
5.2.170.0030.03011.11
5.2.160.0000.02711.30
5.2.150.0030.03011.32
5.2.140.0070.04311.30
5.2.130.0070.04711.09
5.2.120.0000.02711.07
5.2.110.0070.03311.13
5.2.100.0070.02311.14
5.2.90.0000.03011.28
5.2.80.0030.02711.20
5.2.70.0000.03011.25
5.2.60.0100.02311.01
5.2.50.0030.02711.20
5.2.40.0000.03310.93
5.2.30.0100.02011.13
5.2.20.0070.03311.11
5.2.10.0000.03010.85
5.2.00.0030.03710.90
5.1.60.0000.02710.04
5.1.50.0030.03310.08
5.1.40.0000.04010.09
5.1.30.0030.04310.37
5.1.20.0070.06010.54
5.1.10.0070.05310.15
5.1.00.0000.06310.22
5.0.50.0030.0408.44
5.0.40.0000.0508.54
5.0.30.0070.0678.29
5.0.20.0100.0408.33
5.0.10.0030.0438.29
5.0.00.0000.0578.25
4.4.90.0000.0138.07
4.4.80.0070.0108.07
4.4.70.0070.0108.07
4.4.60.0000.0178.07
4.4.50.0100.0108.07
4.4.40.0000.0278.07
4.4.30.0100.0138.07
4.4.20.0000.0278.07
4.4.10.0030.0378.07
4.4.00.0000.0478.07
4.3.110.0070.0178.07
4.3.100.0070.0178.07
4.3.90.0000.0338.07
4.3.80.0100.0538.07
4.3.70.0030.0338.07
4.3.60.0030.0238.07
4.3.50.0000.0238.07
4.3.40.0000.0578.07
4.3.30.0000.0378.07
4.3.20.0000.0408.07
4.3.10.0030.0138.07
4.3.00.0030.0338.07

preferences:
45.06 ms | 401 KiB | 5 Q