3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Bijective { public $dictionary = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; public function __construct() { $this->dictionary = str_split($this->dictionary); } public function encode($i) { if ($i == 0) return $this->dictionary[0]; $result = ''; $base = count($this->dictionary); while ($i > 0) { $result[] = $this->dictionary[($i % $base)]; $i = floor($i / $base); } $result = array_reverse($result); return join("", $result); } public function decode($input) { $i = 0; $base = count($this->dictionary); $input = str_split($input); foreach($input as $char) { $pos = array_search($char, $this->dictionary); $i = $i * $base + $pos; } return $i; } } $bj = new Bijective(); $hash = $bj->encode($bj->decode('Abc') + 1);
Output for 7.1.0 - 7.2.0
Fatal error: Uncaught Error: [] operator not supported for strings in /in/H4Ng6:22 Stack trace: #0 /in/H4Ng6(50): Bijective->encode(100009) #1 {main} thrown in /in/H4Ng6 on line 22
Process exited with code 255.
Output for 5.3.22 - 7.0.20