What are the potential issues with using   as a space character in PHP code?

Using ` ` as a space character in PHP code can lead to readability issues and confusion, as it is not a standard way to represent spaces in code. It is recommended to use the actual space character `' '` or the PHP predefined constant `PHP_EOL` for line breaks to improve code clarity and maintainability.

// Using actual space character ' ' instead of  
echo "Hello World";