How can debugging techniques be effectively utilized to troubleshoot PHP scripts, especially in the context of form processing and database interactions?

Issue: Debugging techniques can be effectively utilized to troubleshoot PHP scripts by using tools like error reporting, var_dump(), and print_r() to identify and fix issues in form processing and database interactions. Code snippet: 

// Enable error reporting to display any PHP errors
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Use var_dump() or print_r() to inspect variables and data structures
var_dump($variable_name);
print_r($array_name);

// Check database queries for errors and use mysqli_error() to display any SQL errors
$result = mysqli_query($connection, "SELECT * FROM table_name");
if (!$result) {
    die('Invalid query: ' . mysqli_error($connection));
}

Keywords

debugging PHP scripts form processing database interactions error types

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