CODEWITHSUNDEEP
phparraysmultidimensional-array
RobbTe
RobbTe

Reputation: 405

Loop through Multidimensional (nested) Array

I have an array like below and would like to create a <html> form out of it. I tried to accomplish that but I can't seem to figure out how to loop through the inner/nested array, that have the values that i want to use.

Can anyone help me out? Just to be clear, I would like a html output like:

<form method="get">
    <h2>I have</h2>
    <input type="checkbox" value="own studio">own studio<br>
    <input type="checkbox" value="mobile studio">mobile studio<br>
    <input type="checkbox" value="makeup artist">makeup artist<br>
    <h2>Customers</h2>
    <select>
        <option value="Private">Private</option>
        <option value="Business">Business</option>
    </select>
</form>

Function

<?php
function get_listing_cfs() {
global $wpdb; 
$serialized=$wpdb->get_var("SELECT meta_value FROM $wpdb->postmeta WHERE meta_key='va_form'"); 
$array=unserialize($serialized);
$source = array_filter($array, function($el) {
    return !(
            $el['props']['label'] == 'Exclude' ||
            $el['props']['label'] == 'Exclude 2'
            );
});
//echo '<pre>'.print_r($source, true).'</pre>';
$toreturn = '<form method="get">';
    foreach ($source as $key => $item) {
    $toreturn .= '<h2>'.$source[$key]['props']['label'].'</h2>';
        if ($source[$key]['type'] == 'select'){
        $toreturn .= '<select>';
        // Scan through inner loop
            foreach ($item as $value =>$data) {
               $toreturn .='<option value="'.$value['props']['options'].'">'.$value['props']['options'].'</option>';
            }
        $toreturn .='</select>';    
        }
        if ($source[$key]['type'] == 'checkbox'){
        // Scan through inner loop
            foreach ($item as $value =>$data) {
               $toreturn .='<input type="checkbox" value="'.$value['props']['options'].'">'.$value['props']['options'].'<br />';
            }
        }
    }
    $toreturn .= '</form>';
return $toreturn;
}
?>

Array

Array
(
    [0] => Array
        (
            [id] => app_i_have
            [type] => checkbox
            [props] => Array
                (
                    [required] => 0
                    [label] => I have
                    [tip] => 
                    [options] => Array
                        (
                            [0] => Array
                                (
                                    [baseline] => 0
                                    [value] => mobile studio
                                )

                            [1] => Array
                                (
                                    [baseline] => 0
                                    [value] => own studio
                                )

                            [2] => Array
                                (
                                    [baseline] => 0
                                    [value] => makeup artist
                                )

                        )

                )

        )

    [1] => Array
        (
            [id] => app_customers
            [type] => select
            [props] => Array
                (
                    [required] => 0
                    [label] => Customers
                    [tip] => 
                    [options] => Array
                        (
                            [0] => Array
                                (
                                    [baseline] => 0
                                    [value] => Private
                                )

                            [1] => Array
                                (
                                    [baseline] => 0
                                    [value] => Business
                                )

                        )

                )

        )

)

Upvotes: 0

Views: 101

Answers (1)

Rohit
Rohit

Reputation: 3156

You're not considering your data structure at all.

foreach ($item as $value =>$data) {
    $toreturn .='<option value="'.$value['props']['options'].'">'.$value['props']['options'].'</option>';
}

In this, $item is

[props] => Array
    (
        [required] => 0
        [label] => I have
        [tip] => 
        [options] => Array

So looping through it would be looping through the properties, not the values. You want to loop $item['options'].

Over all, if you're not experienced with array (a base and necessary type in PHP), I suggest you go back and do some starter material before trying something like this.

Upvotes: 1

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