How can the issue of combining form inputs with database entries be better addressed using arrays in PHP?

When combining form inputs with database entries in PHP, it can be challenging to manage multiple inputs and their corresponding database fields efficiently. Using arrays can help streamline this process by organizing form inputs into arrays and iterating through them to insert or update database entries. 

// Assuming form inputs are submitted as arrays like 'input_name[]'
// and database entries are fetched as associative arrays

// Example of combining form inputs with database entries using arrays
$formInputs = $_POST['input_name']; // Array of form inputs
$databaseEntries = $db->fetchAssoc('SELECT * FROM table'); // Array of database entries

foreach ($formInputs as $key => $value) {
    $dbField = $key; // Assuming form input names match database field names
    $dbValue = $value;

    // Update database entry if it exists, otherwise insert new entry
    if (array_key_exists($dbField, $databaseEntries)) {
        $db->query("UPDATE table SET $dbField = '$dbValue' WHERE id = {$databaseEntries['id']}");
    } else {
        $db->query("INSERT INTO table ($dbField) VALUES ('$dbValue')");
    }
}

Keywords

arrays form inputs database entries PHP combining

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