PHP, Mathematical Functions

hex2bin

DECODES hexadecimally to an encoded binary STRING.

The hex2bin is inverse function of the bin2hex function.

This function does NOT convert a HEXADECIMAL number to a BINARY number.


<?php



string|false hex2bin ( string $string )





where,



$string = The hexadecimal representation of data



?>

$string

The HEXADECIMAL data to be converted to BINARY data.

EXERCISE


<?php



$hex01 = '47efbfbd2e70efbfbdefbfbd381f5f0eefbfbdefbfbd';



$hex2bin01 = hex2bin($hex01);



echo $hex2bin01;



?>

RESULT

HEXADECIMAL REPRESENTATION:
'47efbfbd2e70efbfbdefbfbd381f5f0eefbfbdefbfbd'

BINARY DATA:
'G�.p��8_��'

EXERCISE


<?php



$hex02 = '313031303131303130313131303030';



$hex2bin02 = hex2bin($hex02);



echo $hex2bin02;



?>

RESULT

HEXADECIMAL REPRESENTATION:
'313031303131303130313131303030'

BINARY DATA:
'101011010111000'

EXERCISE


<?php



$hex03 = '4561737920636f6d652c206561737920676f2e';



$hex2bin03 = hex2bin($hex03);



echo $hex2bin03;



?>

RESULT

HEXADECIMAL REPRESENTATION:
'4561737920636f6d652c206561737920676f2e'

BINARY DATA:
'Easy come, easy go.'

EXERCISE


<?php



var_dump(bin2hex(hex2bin('012345')) == '012345');

echo '<br><br>';

var_dump(bin2hex(hex2bin('abc123')) == 'abc123');

echo '<br><br>';

var_dump(bin2hex(hex2bin('123abc')) == '123abc');

echo '<br><br>';

var_dump(bin2hex(hex2bin('FFFFFF')) == 'ffffff');



?>

EXERCISE


<?php



var_dump(hex2bin('SATOR'));

ECHO '<br><br>';

var_dump(hex2bin('ROTAS'));



?>