Php fulfills byte array conversion in java

Php implements byte array conversion in java. due to work needs, a class written in php that implements byte array conversion in java. & Lt ;? Php **? * Byte array and string conversion class? * @ Authorzikie? * Createdon2011-7-15? * ClassBytes {?????? **???? * Convert a Str php string to implement byte array conversion in java

Because of work requirements, I wrote a php class to implement byte array conversion in java.

/**
? * Byte array and string conversion class
? * @ Author zikie
? * Created on 2011-7-15
? */

Class Bytes {
???
??? /**
???? * Convert a String to a byte array.
???? * @ Param $ str the string to be converted
???? * @ Param $ bytes target byte array
???? * @ Author Zikie
???? */
????
??? Public static function getBytes ($ str ){

??? ??? $ Len = strlen ($ str );
??? ??? $ Bytes = array ();
?? ??? ??? For ($ I = 0; $ I <$ len; $ I ++ ){
?? ??? ??? ??? If (ord ($ str [$ I]) >= 128 ){
?? ??? ??? ??? ??? $ Byte = ord ($ str [$ I])-256;
?? ??? ??? ??? } Else {
?? ??? ??? ??? ??? $ Byte = ord ($ str [$ I]);
?? ??? ??? ??? }
??????? ??? $ Bytes [] =? $ Byte;
??? ??? }
??? ??? Return $ bytes;
??? }
???
??? /**
???? * Convert byte arrays to String-type data.
???? * @ Param $ bytes byte array
???? * @ Param $ str target string
???? * @ Return a String type data
???? */
????
??? Public static function toStr ($ bytes ){
??? ??? $ Str = '';
??? ??? Foreach ($ bytes as $ ch ){
??????? ??? $ Str. = chr ($ ch );
??? ??? }

?? ??? ??? Return $ str;
??? }
???
??? /**
???? * Convert an int to a byte array.
???? * @ Param $ byt the target byte array
???? * @ Param $ val: string to be converted
???? * @ Author Zikie
???? */
???
??? Public static function integerToBytes ($ val ){
??? ??? $ Byt = array ();
??? ??? $ Byt [0] = ($ val & 0xff );
??? ??? $ Byt [1] = ($ val> 8 & 0xff );
??? ??? $ Byt [2] = ($ val> 16 & 0xff );
??????? $ Byt [3] = ($ val> 24 & 0xff );
??????? Return $ byt;
??? }
???
??? /**
???? * Read an Integer data from the specified position in the byte array
???? * @ Param $ bytes byte array
???? * @ Param $ position specifies the start position.
???? * @ Return an Integer data type
???? */
????
??? 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;
??? }

??? /**
???? * Convert a shor string to a byte array.
???? * @ Param $ byt the target byte array
???? * @ Param $ val: string to be converted
???? * @ Author Zikie
???? */
???
??? Public static function extends tobytes ($ val ){
??? ??? $ Byt = array ();
??? ??? $ Byt [0] = ($ val & 0xff );
??????? $ Byt [1] = ($ val> 8 & 0xff );
??????? Return $ byt;
??? }
???
??? /**
???? * Read a Short type data from the specified position in the byte array.
???? * @ Param $ bytes byte array
???? * @ Param $ position specifies the start position.
???? * @ Return a Short type data
???? */
????
??? Public static function bytesToShort ($ bytes, $ position ){
??????? $ Val = 0;
??????? $ Val = $ bytes [$ position + 1] & 0xFF;
??????? $ Val = $ val <8;
??????? $ Val | = $ bytes [$ position] & 0xFF;
??????? Return $ val;
??? }
???
}
?>

Tron. lu

Is 3des used for encryption?

2nd floor heaven _ 18 2012-03-13

It can be used in many places.