How can variable naming conventions and array structures be improved to enhance code readability and maintainability in PHP programming?

Variable naming conventions can be improved by using descriptive names that clearly indicate the purpose of the variable. Avoid using single-letter or ambiguous names. Array structures can be made more readable by using meaningful keys and formatting the arrays in a way that is easy to understand. 

// Bad variable naming and array structure
$a = 10;
$b = 20;
$c = ['key1' => 100, 'key2' => 200];

// Improved variable naming and array structure
$firstNumber = 10;
$secondNumber = 20;
$data = [
    'value1' => 100,
    'value2' => 200
];

Keywords

variable naming conventions array structures code readability maintainability PHP programming

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