Are there any best practices for using double quotes or single quotes in PHP code?

When writing PHP code, it is generally recommended to use single quotes for simple string literals and double quotes for strings that require variable interpolation. This helps improve code readability and maintainability. 

// Example of using single quotes for simple string literals
$greeting = 'Hello, World!';

// Example of using double quotes for strings with variable interpolation
$name = 'Alice';
$message = "Hello, $name!";

Keywords

double quotes single quotes PHP code string manipulation coding standards

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