3v4l.org

run code in 300+ PHP versions simultaneously
<?php function gdr_encode($val) { // all characters that json encode without escaping $chrs = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 !#$%&\'()*+,-.:;<=>?@[]^_`{|}~'; $base = strlen($chrs); $str = ''; while ($val > 0) { $str = $chrs[$val % $base] . $str; $val = (int)($val / $base); } return $str; } function gdr_decode($str) { // all characters that json encode without escaping $chrs = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789 !#$%&\'()*+,-.:;<=>?@[]^_`{|}~'; $base = strlen($chrs); $map = array(); for ($i=0; $i<$base; $i++) { $map[$chrs[$i]] = $i; } $val = 0; for ($i=0; $i<strlen($str); $i++) { $val *= $base; $val += (int)$map[$str[$i]]; } return $val; } function duration($val) { if ($val < 24) { return sprintf('%d', $val).'h'; } if ($val < 24*10) { return sprintf('%1.1f', $val/24).'d'; } if ($val < 168*10) { return sprintf('%1.1f', $val/168).'w'; } //if ($val < 730*10) { // return sprintf('%1.1f', $val/730).'m'; //} return sprintf('%1.1f', $val/8760).'y'; } function cmp($val) { return strlen(gdr_encode($val))+2-strlen($val); } function insert(&$vals, $n) { $min = intval('1'.str_repeat('0', $n-1)); $max = intval(str_repeat('9', $n)); $vals[] = $min; $vals[] = $max; $len = cmp($min); if ($len == cmp($max)) { return; } while ($min <= $max) { $mid = round(($min+$max)/2, 0)-1; $k = cmp($mid); echo "$min $mid $max $k\n"; if ($k == $len && cmp($mid+1) == $len+1) { $vals[] = $mid; $vals[] = $mid+1; return; } if ($k <= $len) { $max = $mid-1; } else { $min = $mid+1; } } } $vals = array(0); for ($i=1; $i<8; $i++) { insert($vals, $i); } $vals = array_unique($vals); sort($vals); //$vals = array( // 0, 1, 99, 100, 255, 256, 999, 1000, 9999, 10000, 65535, 65536, 99999, // 100000, 250000, 500000, 750000, 999999, 1000000, 9999999, //4294967295, 4294967296 //); echo sprintf("%7s %7s %7s %4s\n", 'num', 'str', 'time', 'cmp'); foreach ($vals as $val) { $enc = gdr_encode($val); $dec = gdr_decode($enc); if ($dec !== $val) { echo "ERROR: $val => $enc => $dec\n"; } else { echo sprintf("%7d %7s %7s %4d\n", $dec, "\"$enc\"", duration($val), strlen($enc)+2-strlen($val)); } }

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)
8.3.70.0030.02016.75
8.3.60.0130.00716.88
8.3.50.0150.01622.81
8.3.40.0100.01018.84
8.3.30.0290.01519.17
8.3.20.0160.01120.26
8.3.10.0130.00323.61
8.3.00.0060.00619.51
8.2.180.0340.00916.50
8.2.170.0130.01022.96
8.2.160.0350.02220.47
8.2.150.0070.00724.18
8.2.140.0000.01224.66
8.2.130.0120.01226.16
8.2.120.0060.00621.16
8.2.110.0100.00320.66
8.2.100.0170.00319.71
8.2.90.0070.00718.34
8.2.80.0000.01417.97
8.2.70.0070.00717.75
8.2.60.0090.00918.05
8.2.50.0090.00318.07
8.2.40.0060.00618.34
8.2.30.0000.01118.37
8.2.20.0070.00717.93
8.2.10.0110.00718.18
8.2.00.0000.01417.92
8.1.280.0170.00325.92
8.1.270.0090.00323.77
8.1.260.0040.00726.35
8.1.250.0060.00328.09
8.1.240.0090.00322.23
8.1.230.0130.00921.06
8.1.220.0090.00317.78
8.1.210.0030.01019.03
8.1.200.0070.00717.35
8.1.190.0100.01017.25
8.1.180.0100.00018.10
8.1.170.0000.01818.84
8.1.160.0030.01022.20
8.1.150.0000.01419.11
8.1.140.0060.00617.60
8.1.130.0030.00617.95
8.1.120.0040.01317.67
8.1.110.0070.01117.67
8.1.100.0030.01017.62
8.1.90.0090.00917.62
8.1.80.0030.00617.63
8.1.70.0030.00617.58
8.1.60.0080.00817.68
8.1.50.0090.01417.67
8.1.40.0060.00817.58
8.1.30.0030.00717.68
8.1.20.0030.00917.67
8.1.10.0100.00317.71
8.1.00.0030.01017.71
8.0.300.0060.01120.04
8.0.290.0000.01116.63
8.0.280.0060.00318.41
8.0.270.0040.01117.36
8.0.260.0130.00417.31
8.0.250.0030.01016.95
8.0.240.0070.00316.85
8.0.230.0000.01116.96
8.0.220.0070.01316.96
8.0.210.0110.00716.97
8.0.200.0050.00516.85
8.0.190.0090.00616.91
8.0.180.0070.00316.97
8.0.170.0140.00016.99
8.0.160.0030.00816.96
8.0.150.0050.00516.90
8.0.140.0030.00716.94
8.0.130.0000.01013.41
8.0.120.0080.00316.79
8.0.110.0140.00516.80
8.0.100.0040.00816.71
8.0.90.0030.01016.95
8.0.80.0140.02416.86
8.0.70.0030.01016.79
8.0.60.0030.01016.95
8.0.50.0040.01316.92
8.0.30.0230.03517.22
8.0.20.0540.06117.40
8.0.10.0040.01117.04
8.0.00.0400.02816.73
7.4.330.0070.01015.14
7.4.320.0000.01216.51
7.4.300.0060.00616.40
7.4.290.0080.00416.50
7.4.280.0030.00716.55
7.4.270.0030.01016.52
7.4.260.0000.01116.56
7.4.250.0000.01016.36
7.4.240.0030.02116.50
7.4.230.0070.00416.38
7.4.220.0070.03316.58
7.4.210.0070.01716.59
7.4.200.0100.00316.52
7.4.160.0290.02516.52
7.4.150.0320.03917.40
7.4.140.0270.02417.86
7.4.130.0220.03316.45
7.4.120.0260.02716.48
7.4.110.0430.02516.47
7.4.100.0360.03216.56
7.4.90.0770.03416.48
7.4.80.0100.01719.39
7.4.70.0780.05516.37
7.4.60.0810.03416.71
7.4.50.0000.00716.61
7.4.40.0900.03216.73
7.4.30.0100.01716.37
7.4.00.0100.01715.16
7.3.330.0070.00713.41
7.3.320.0030.00713.50
7.3.310.0030.01416.47
7.3.300.0060.00616.43
7.3.290.0040.02916.38
7.3.280.0140.02216.36
7.3.270.0170.02817.40
7.3.260.0440.03216.37
7.3.240.0200.02416.39
7.3.230.0510.06316.44
7.3.210.0410.04516.43
7.3.200.0260.03619.39
7.3.190.0330.03316.43
7.3.180.0130.03216.48
7.3.170.0190.01516.66
7.3.160.0590.04616.29
7.2.330.0180.02516.73
7.2.320.0450.05016.50
7.2.310.0290.02616.76
7.2.300.0100.03616.63
7.2.290.0030.02616.75
7.2.00.0000.01619.35
7.1.100.0080.00618.20
7.1.70.0030.00916.98
7.1.60.0170.02019.40
7.1.50.0160.01317.17
7.0.200.0030.01016.82

preferences:
58.82 ms | 401 KiB | 5 Q