Question

I have an array that I declare like this:

$health_array = array( );

For every iteration I try to put these 3 items in it like this:

$health_array["num_problems"] = $num_problems;
$health_array["category_id"] = $category_id;
$health_array["category_name"] = $category_name;

But when I loop through the array I get gibberish. Here is how I loop through it:

foreach ($health_array as $i => $row)
{
    echo  '<p>'.$row['category_name'].' '.$row['category_id'].' '.$row['num_problems'].'</p>';
} 

Any idea what I am doing wrong?

Thanks!!

Answer 1

Your problem comes from the fact that you want to do a multi-dimensional array and you’re creating a monodimensional one, by overwriting each time the same 3 elements.

You should do something like:

$health_array = array();
$tmp = array();

$tmp["num_problems"] = 5;
$tmp["category_id"] = 8;
$tmp["category_name"] = "something";
$health_array[] = $tmp;

$tmp["num_problems"] = 15;
$tmp["category_id"] = 22;
$tmp["category_name"] = "something else";
$health_array[] = $tmp;

foreach ($health_array as $h)
    {
    echo $h["num_problems"]." - ".$h["category_id"]." - ".$h["category_name"]."<br />";
    }