mirror of https://github.com/BOINC/boinc.git
32 lines
955 B
PHP
32 lines
955 B
PHP
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<?php
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/**
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* A BInteger takes care of the BEncoding and BDecoding of integers for the
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* Bittorrent features.
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* An integer starts with "i", has the value and then ends with "e".
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*/
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class BInteger {
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private function __construct(){
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}
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/**
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* Returns the ordinary value decoded from $str
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* @throws an IllegalArgumentException in the case
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* that the string is malformed.
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*/
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public static function toInteger($str){
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if (substr($str, 0, 1)!="i" || substr($str, -1, 1)!="e") throw new IllegalArgumentException("BEncoded integer value does not start with i or end with e.");
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$value = substr($str, 1,-1);
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if (!is_numeric($value)) throw new IllegalArgumentException("BEncoded string has non-numeric length specification.");
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return $value;
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}
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/**
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* Returns a BEncoded integer value
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*/
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public static function toEncoded($value){
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return "i".$value."e";
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}
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}
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?>
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