Match items in an array with text

[matt2012]

Ok so I have a large array and a large text to search my aim to create a new array based on what items in the large array are found in the text

so something like

$myarray = array("apple juice","nice cake","ice cream",...)

$my text = "I like apple juice and ice cream"

foreach ($myarray as $item):
$x = strpos($mytext, $item);
if (strpos !== 0) $newarray[] = $item;
endforeach;

given that its a large text and a large array is this the quickest way of doing this?

[Weedpacket]

foreach ($myarray as $item)
{
    if(strpos($mytext, $item) !== false)
    {
        $newarray[] = $item;
    }
}

I think the slowest part of the process will be coding it in the first place.