What resources or documentation should PHP beginners refer to when facing encoding issues in their scripts?

When facing encoding issues in PHP scripts, beginners should refer to the PHP documentation on string functions, specifically those related to character encoding and conversion. Additionally, resources like Stack Overflow and PHP forums can provide valuable insights and solutions to common encoding problems.

// Example code snippet to convert a string to UTF-8 encoding
$originalString = "This is a sample string with encoding issues";
$utf8String = mb_convert_encoding($originalString, "UTF-8", "auto");
echo $utf8String;