How Can I Generate a Hex Dump of a String in PHP5?

PHP: Generating a Hex Dump of a String

Encodings play a crucial role in PHP5. To delve deeper into the intricacies of encoding, you may require a means to obtain a raw hex dump of a string. This refers to a hexadecimal representation of every byte in a string, rather than the characters themselves. Here are two methods to achieve this in PHP5:

Method 1:

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

echo bin2hex($string);

Method 2:

Alternatively, you can employ a loop to iterate over each character in the string and apply the ord() function to get the ASCII code. Then, convert the code to hex and pad it with zeros to ensure a consistent output format:

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

In both methods, $string represents the input string for which you wish to generate the hex dump.

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