hexdec(3) [php man page]

HEXDEC(3)								 1								 HEXDEC(3)

hexdec - Hexadecimal to decimal

SYNOPSIS

       number hexdec (string  $hex_string)

DESCRIPTION

	Returns  the decimal equivalent of the hexadecimal number represented by the $hex_string argument. hexdec(3) converts a hexadecimal string
       to a decimal number.

       hexdec(3) will ignore any non-hexadecimal characters it encounters.

PARAMETERS

	      o $hex_string
		- The hexadecimal string to convert

RETURN VALUES

	The decimal representation of $hex_string

EXAMPLES

       Example #1

	      hexdec(3) example

	      <?php
	      var_dump(hexdec("See"));
	      var_dump(hexdec("ee"));
	      // both print "int(238)"

	      var_dump(hexdec("that")); // print "int(10)"
	      var_dump(hexdec("a0")); // print "int(160)"
	      ?>

NOTES

       Note

	       The function can convert numbers that are too large to fit into the platforms integer type, larger values are returned as float	in
	      that case.

SEE ALSO

       dechex(3), bindec(3), octdec(3), base_convert(3).

PHP Documentation Group 														 HEXDEC(3)

HEX2BIN(3)								 1								HEX2BIN(3)

hex2bin - Decodes a hexadecimally encoded binary string

SYNOPSIS

       string hex2bin (string  $data)

DESCRIPTION

	Decodes a hexadecimally encoded binary string.

       Caution

	       This function does NOT convert a hexadecimal number to a binary number. This can be done using the base_convert(3) function.

PARAMETERS

	      o $data
		- Hexadecimal representation of data.

RETURN VALUES

	Returns the binary representation of the given data or FALSE on failure.

ERRORS
/EXCEPTIONS
	If the hexadecimal input string is of odd length or invalid hexadecimal string an E_WARNING level error is thrown.

CHANGELOG

       +--------+---------------------------------------------------+
       |Version |						    |
       |	|						    |
       |	|		     Description		    |
       |	|						    |
       +--------+---------------------------------------------------+
       | 5.5.1	|						    |
       |	|						    |
       |	|  A  warning  is  thrown  if  the  input string is |
       |	| invalid hexadecimal string.			    |
       |	|						    |
       | 5.4.1	|						    |
       |	|						    |
       |	|  A warning is thrown if the input  string  is  of |
       |	| odd  length. In PHP 5.4.0 the string was silently |
       |	| accepted, but the last byte was truncated.	    |
       |	|						    |
       +--------+---------------------------------------------------+
EXAMPLES

       Example #1

	      hex2bin(3) example

	      <?php
	      $hex = hex2bin("6578616d706c65206865782064617461");
	      var_dump($hex);
	      ?>

	      The above example will output something similar to:

	      string(16) "example hex data"

SEE ALSO

       bin2hex(3), unpack(3).

PHP Documentation Group 														HEX2BIN(3)