strpos still returning when false

Question

$post_id = 228;

$content_post = get_post($post_id);
$content = $content_post->post_content;


$doc = new DOMDocument();
$doc->loadHTML($content);

$links = $doc->getElementsByTagName('a');

foreach ($links as $link){
    $href = $link->getAttribute('href');
    $avoid  = array('.jpg', '.png', '.gif', '.jpeg');

    if (strpos($href, $avoid) == false) {
        echo $link->nodeValue, '<br>';
        echo $href, '<br>';
    }
}

strpos is still returning the urls when false - any idea what I am missing? !== doesn't work either.

Added info: I am trying to exclude all image urls, so if you have a better way - feel free to share.

Update, does not do the trick either . (tried this using the documentation).

    foreach ($links as $link){
    $href = $link->getAttribute('href');
    $avoid  = array('.jpg', '.png', '.gif', '.jpeg');
    $pos = strpos($href, $avoid);

    if ($pos === false) {

    echo $link->nodeValue, '<br>';
    echo $href, '<br>';
   }
   }

Answer 1

If you want to check if $href contains any of the strings in $avoid, you can replace them with nothing and see if you still have the original string.

if ($href == str_replace($avoid, '', $href)) { ...

str_replace can take an array, unlike strpos.