PHP string and byte byte array conversion class example

PHP stringAnd bytebyte array TurnExample of a class

PHP

/**

* byteArray andString gotoof the class

*/

class Bytes {


/**

* Turnchange a stringstringto bebyteArray

* @param $str needTurnChange thestring

* @param $bytes targetbyteArray

* @author Zikie

*/
Public static function GetBytes ($string) {
$bytes = Array ();
For ($i = 0; $i < strlen ($string); $i + +) {
$bytes [] = Ord ($string [$i]);
}
return $bytes;
}


/**

* The byte arrayTurnto a string type of data

* @param $bytes byte array

* @param $str targetstring

* @return A String type of data

*/

Public static function Tostr ($bytes) {
$str = ";
foreach ($bytes as $ch) {
$str. = Chr ($ch);
}

return $str;
}


/**

* Turnchange an int tobyteArray

* @param $byt targetbyteArray

* @param $val needTurnChange thestring

*

*/

Public static function Integertobytes ($val) {
$byt = Array ();
$byt [0] = ($val & 0xff);
$byt [1] = ($val >> 8 & 0xff);
$byt [2] = ($val >> & 0xff);
$byt [3] = ($val >> & 0xff);
return $byt;
}


/**

* Reads an integer type of data from the location specified in the byte array

* @param $bytes byte array

* @param $position The starting position specified

* @return An integer type of data

*/

Public static function Bytestointeger ($bytes, $position) {
$val = 0;
$val = $bytes [$position + 3] & 0xFF;
$val <<= 8;
$val |= $bytes [$position + 2] & 0xFF;
$val <<= 8;
$val |= $bytes [$position + 1] & 0xFF;
$val <<= 8;
$val |= $bytes [$position] & 0xFF;
return $val;
}


/**

* Turnchange a Shor .stringto bebyteArray

* @param $byt targetbyteArray

* @param $val needTurnChange thestring

*

*/

Public static function Shorttobytes ($val) {
$byt = Array ();
$byt [0] = ($val & 0xff);
$byt [1] = ($val >> 8 & 0xff);
return $byt;
}


/**

* Reads a short type of data from the location specified in the byte array.

* @param $bytes byte array

* @param $position The starting position specified

* @return A short type of data

*/

Public static function Bytestoshort ($bytes, $position) {
$val = 0;
$val = $bytes [$position + 1] & 0xFF;
$val = $val << 8;
$val |= $bytes [$position] & 0xFF;
return $val;
}

}
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