How Can I Get a Hex Dump of a String in PHP?

Getting a Hex Dump of a String in PHP

In PHP, obtaining a hex dump of a string, where each byte is represented in hexadecimal, is a useful technique for debugging encoding issues. Here are two methods to achieve this:

Method 1:

Using the bin2hex() function, you can convert a string into a hexadecimal representation:

echo bin2hex($string);

Method 2:

Iterating through the string character by character and converting each byte to hexadecimal using ord() and dechex():

for ($i = 0; $i < strlen($string); $i++) {
    echo str_pad(dechex(ord($string[$i])), 2, '0', STR_PAD_LEFT);
}

In these examples, $string is the variable that holds the input string for which you want to create a hex dump.

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