What are some best practices for organizing and outputting data from multiple JOIN queries in PHP?

When working with multiple JOIN queries in PHP, it is important to organize and output the data in a structured and readable format. One best practice is to use associative arrays to store the results of each query and then combine them into a single array for output. This allows for easy access to the data and simplifies the process of displaying it on the frontend. 

// Perform multiple JOIN queries and store results in associative arrays
$query1 = "SELECT * FROM table1 JOIN table2 ON table1.id = table2.id";
$result1 = mysqli_query($connection, $query1);
$data1 = mysqli_fetch_all($result1, MYSQLI_ASSOC);

$query2 = "SELECT * FROM table3 JOIN table4 ON table3.id = table4.id";
$result2 = mysqli_query($connection, $query2);
$data2 = mysqli_fetch_all($result2, MYSQLI_ASSOC);

// Combine the results into a single array for output
$output = array(
    'table1_data' => $data1,
    'table2_data' => $data2
);

// Output the data in a structured format
echo json_encode($output);

Keywords

PHP JOIN queries data organization outputting data best practices

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