How can developers ensure code readability, maintainability, and reliability when choosing between single quotes and double quotes in PHP strings?

Developers can ensure code readability, maintainability, and reliability by consistently choosing either single quotes or double quotes for string literals throughout their codebase. This helps maintain a uniform coding style and makes it easier for other developers to understand and maintain the code. Additionally, using single quotes for string literals that do not require variable interpolation can improve performance as PHP does not have to parse the string for variables.

// Consistently use single quotes for string literals that do not require variable interpolation
$message = 'Hello, World!';
$error = 'An error occurred.';

// Use double quotes for string literals that require variable interpolation
$name = 'John';
$greeting = "Hello, $name!";