How can PHP arrays be effectively manipulated and combined for database storage?

To effectively manipulate and combine PHP arrays for database storage, you can use functions like array_merge() to combine arrays, array_push() to add elements to an array, and json_encode() to convert arrays to JSON format for storage in a database. Additionally, you can use foreach loops to iterate through arrays and extract data for database insertion.

// Example of combining and manipulating arrays for database storage
$array1 = ['name' => 'John', 'age' => 30];
$array2 = ['city' => 'New York', 'country' => 'USA'];

// Combining arrays
$combinedArray = array_merge($array1, $array2);

// Adding elements to an array
array_push($combinedArray, 'occupation', 'Developer');

// Converting array to JSON for storage
$jsonData = json_encode($combinedArray);

// Inserting data into database
// Example SQL query: INSERT INTO table_name (data_column) VALUES ('$jsonData');