What are common variable naming conventions in PHP and how can they affect code readability?

Variable naming conventions in PHP typically involve using lowercase letters and underscores to separate words (e.g. $my_variable_name). This convention helps improve code readability by making variable names more descriptive and easier to understand. Additionally, it is recommended to use meaningful names that reflect the purpose of the variable to enhance code clarity. 

// Example of using meaningful variable names in PHP
$user_name = "John Doe";
$user_age = 25;

echo "User: $user_name, Age: $user_age";

Keywords

variable naming conventions PHP code readability camelCase snake_case

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