Php string and byte array conversion class example

This article provides a php string and byte array conversion class example. I hope this article will be helpful to you.

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<? Php /**   * Byte array and String Conversion class   */ 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 ($ string ){ $ Bytes = array (); For ($ I = 0; $ I <strlen ($ string); $ I ++ ){ $ Bytes [] = ord ($ string [$ I]); } 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 * */ 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 * */ 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; } } ?>