How can developers effectively debug and display array contents in PHP code?

To effectively debug and display array contents in PHP code, developers can use the var_dump() function to output the structure and values of an array. This function provides detailed information about the array, including its keys, values, and data types. By using var_dump(), developers can easily identify any issues with the array and debug their code efficiently.

$array = [1, 2, 3, 4, 5];
var_dump($array);