How to Submit Multidimensional Arrays via POST in PHP for Emailing Table Data?

Submitting Multidimensional Arrays via POST with PHP

Challenge:

Design a PHP form that accepts a dynamic number of rows, each containing known columns (e.g., top/bottom diameter, fabric, color, quantity). The goal is to submit this data as a multidimensional array to be emailed as a formatted table.

Solution:

Form Structure: Use bracket notation in input names to create multidimensional arrays. For example:

<input name="diameters[0][top]" type="text">

PHP Processing:

Upon form submission, PHP will populate arrays based on the input names. To process the data, follow these steps:

1. Check if the $_POST['diameters'] array is set.
2. Iterate over the array using a foreach loop.
3. Access individual values using the ['top'] and ['bottom'] keys (e.g., $diam['top']).
4. Output the values in a formatted table structure, as desired.

Code Sample:

if (isset($_POST['diameters'])) {
    echo '<table>';
    foreach ($_POST['diameters'] as $diam) {
        echo '<tr><td>' . $diam['top'] . '</td><td>' . $diam['bottom'] . '</td></tr>';
    }
    echo '</table>';
}

Improved Practice:

Instead of using multiple 1D arrays, consider using a single 2D array as it's a more efficient and readable solution.

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