(PHP 4, PHP 5, PHP 7, PHP 8)
bin2hex — Convert binary data into hexadecimal representation
Returns an ASCII string containing the hexadecimal representation
of string. The conversion is done byte-wise
with the high-nibble first.
stringA string.
Returns the hexadecimal representation of the given string.
Example #1 bin2hex() example
<?php
$hex = bin2hex('Hello world!');
var_dump($hex);
var_dump(hex2bin($hex));
?>The above example will output:
string(24) "48656c6c6f20776f726c6421" string(12) "Hello world!"