How can the difference between single and double quotes impact PHP code functionality?

Using single quotes and double quotes in PHP can impact code functionality because variables inside double quotes will be interpreted and replaced with their values, while variables inside single quotes will be treated as plain text. To ensure consistent behavior and prevent unexpected results, it's recommended to use single quotes for string literals that do not require variable interpolation. 

// Example of using single quotes to prevent variable interpolation
$name = 'John';
echo 'Hello, ' . $name . '!'; // Output: Hello, John!

Keywords

single quotes double quotes PHP code functionality impact

Related Questions