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run code in 150+ php & hhvm versions
Bugs & Features
<?php class Bijective { /** * * @var string */ private $dictionary = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; /** * CTOR */ public function __construct() { $this->dictionary = str_split($this->dictionary); } /** * * @param int $i * @return string */ public function encode($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); } /** * * @param string $input * @return int */ public function decode($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; } } $b=new Bijective(); echo $b->decode('d5iskrr');
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
222742818279
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/diunt on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/diunt on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/diunt on line 9
Process exited with code 255.