How can the incorrect use of single and double quotes impact the output of PHP code?

Using the incorrect combination of single and double quotes in PHP can lead to syntax errors or unexpected behavior in the code. To avoid this issue, it's important to use single quotes for string literals that do not require variable interpolation and double quotes for strings that do. This ensures that the code runs correctly and produces the desired output. 

// Incorrect use of single and double quotes
$name = "Alice";
echo 'Hello, $name'; // Output: Hello, $name

// Correct use of single and double quotes
$name = "Alice";
echo "Hello, $name"; // Output: Hello, Alice

Keywords

single quotes double quotes PHP code output impact

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