What are some tips for effectively debugging PHP code that involves array manipulation?

When debugging PHP code that involves array manipulation, it can be helpful to use print_r() or var_dump() functions to display the contents of the array at different stages of the code execution. This will allow you to see the structure of the array and identify any unexpected values or keys. Additionally, using foreach loops to iterate through the array and echo out key-value pairs can help pinpoint where the issue may be occurring. 

// Example code snippet for debugging PHP array manipulation
$array = [1, 2, 3, 4, 5];

// Display the initial contents of the array
print_r($array);

// Manipulate the array
foreach ($array as $key => $value) {
    $array[$key] = $value * 2;
}

// Display the modified contents of the array
print_r($array);

Keywords

var_dump print_r debug_backtrace xdebug error_reporting

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