php merge arrays

Question

I have been trying (unsuccessfully) to merge the output of multiple arrays into a single array. An example of what I tried was:

$data1 = array(\"cat\", \"goat\")         


        

Answer 1

Your example that works is completely different from your non working code. You are not even using array_merge in it.

If you are only accessing scalar elements, the following will work, but does not use array_merge either:

$items = array();
foreach ($lines as $inner) {
    $items[] = $inner[1];
}    
$items = array_unique($items);

echo "
";
print_r($items);
echo "
";

If you are interested in all of $inner, than you would use array_merge:

$items = array();
foreach ($lines as $inner) {
    $items = array_merge($items, $inner);
}