WordPress at a glance
function is not described

AtomParser::is_declared_content_ns() public WP 1.0

{} It's a method of the class: AtomParser{}

No Hooks.

Return

null. Nothing.

Usage

$AtomParser = new AtomParser();
$AtomParser->is_declared_content_ns( $new_mapping );
$new_mapping (required)
-

Code of AtomParser::is_declared_content_ns() WP 5.7.1

<?php
function is_declared_content_ns($new_mapping) {
    foreach($this->content_ns_contexts as $context) {
        foreach($context as $mapping) {
            if($new_mapping == $mapping) {
                return true;
            }
        }
    }
    return false;
}