变量值是两个字符串

Question

Somehow a variable that SHOULD contain only one string (not an array or anything) contain an url, managed to contain two different values;

string(8) "value 1 " string(7) "value 2"

i cannot use this variable because echoing it or using it in another function would print

value 1 value2

which is not what i need, i need only value 1 and i cannot use $var[0]

Two things; how can i do something similar (one variable two strings), and how can i manipulate it. EDIT : here is the code

public function get_first_image($post) {
        $image_id=get_post_thumbnail_id($post->id);
        $image_url = wp_get_attachment_image_src($image_id,’large’);
        $image_url=$image_url[0];
        var_dump($image_url);
        return $image_url;
    }

the var_dump() results are as mentioned above

Best Regards

Answer 1

Don't reuse $image_url as a variable, this is most likely causing your problem. You should rename one of your variables:

public function get_first_image($post) {
    $image_id = get_post_thumbnail_id($post->id);

    $image_array = wp_get_attachment_image_src($image_id,’large’);
    $image_url = $image_array[0];

    var_dump($image_url);
    return $image_url;
}