How to widen the scope of a variable PHP?

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I’m running a query in WordPress and need to re-use the $my_query_results variable later on in my script. 

function init() {

    $args = array(
        'post_type' => 'post'
    );
    $my_query_results = new WP_Query( $args );
}

–

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function process() {
    // I need to process $my_query_results here.
}
add_action( 'wp_ajax_myaction', 'process' );

I don’t want to re-run the query inside process(). How can I make $my_query_results available to the process() function?

Background info: The process() function handles data sent via an AJAX request. After processing, it sends a response to the browser. For example: echo json_encode( $response )

Post Views: 1

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3 comments

  1. If these functions are present in the same class you could assign it to a class property:

    class Class
{
    public $my_query_results;

    function init(){
        $args = array(
            'post_type' => 'post'
        );
        $this->my_query_results = new WP_Query( $args );
    }
    function process() {
        // access $this->my_query_results
    }
}

  2. You could pass the variable as a param

    function init(&$my_query_results) {

    $args = array(
        'post_type' => 'post'
    );
    $my_query_results = new WP_Query( $args );
}

function process(&$my_query_results) {
    // I need to process $my_query_results here.
}

    usage

    init($my_query_results);
process($my_query_results);

  3. or You can simply do global variable:

    $my_query_results = null;
function init() {

$args = array(
    'post_type' => 'post'
);
$my_query_results = new WP_Query( $args );

    }