PHP, Structures and Functions, STRINGS

hex2bin

DECODES hexadecimally to an encoded binary STRING.

The hex2bin is inverse function of the hex2bin function.

This function does NOT convert a hexadecimal number to a binary number.


<?php

str hex2bin ( str $data )


where,

$data = The hexadecimal representation of 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'));

?>