循环，将数据推入数组

I try to push each data from the Wordpress loop into array:

<?php 
$array = array(); 
        $args = -1;
        $posts = get_posts($args);      
        foreach ($posts as $post){
            array_push( $array, array(
                "title" => get_the_title(),
                //capire perchè non stampa il contenuto
                "cont" => get_the_content()
            )); 
        }
        print_r($array);
?>

The problem was that I want to have final data into the multidimensional array but I have only the title value but NOT the content.

Your loop is fine. To access the content get_the_content() you need to use setup_postdata. It sets up the global post data for template tags.

foreach ($posts as $post){
   setup_postdata($post);
   ...
}