How can PHP developers effectively troubleshoot issues with array manipulation in their code?

To effectively troubleshoot issues with array manipulation in PHP code, developers can use debugging tools like var_dump() or print_r() to inspect the contents of arrays at different points in the code. They can also use functions like array_push(), array_pop(), array_shift(), and array_unshift() to manipulate arrays in a more controlled manner. Additionally, checking for common mistakes such as off-by-one errors or incorrect array keys can help identify and resolve issues.

// Example code snippet demonstrating effective array manipulation troubleshooting
$array = [1, 2, 3, 4, 5];

// Print the contents of the array for debugging
var_dump($array);

// Add a new element to the end of the array
array_push($array, 6);

// Remove the first element from the array
array_shift($array);

// Print the modified array for verification
var_dump($array);