How to convert letters to hexadecimal in php

In PHP, you can use the bin2hex() function to convert letters into hexadecimal values. This function can convert a string of ASCII characters into hexadecimal values. The syntax is "bin2hex(string)" .

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

php converts letters to hexadecimal System

<?php
$H = bin2hex("H");
echo($H)."<br>";

$e = bin2hex("e");
echo($e)."<br>";

$l = bin2hex("l");
echo($l)."<br>";

$o = bin2hex("o");
echo($o)."<br>";

$W = bin2hex("W");
echo($W)."<br>";

$str = bin2hex("Hello world!");
echo($str);
?>

Output result:

Explanation:

bin2hex() function converts a string of ASCII characters into ten Hexadecimal value. Strings can be converted back using the pack() function.

Syntax: bin2hex(string)

Return value: Returns the hexadecimal value of the string to be converted.

Recommended learning: "PHP Video Tutorial"

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