wpallimport_xml_row.php

<?php
/**
 * ==================================
 * Filter: wpallimport_xml_row
 * ==================================
 *
 * PLEASE NOTE: The XML generated by this function cannot be used in the Advanced Custom Fields Add-On's repeater "For each" fields: 
 * https://d.pr/i/pT8hIE
 *
 *
 * Allows reading or modification of the data record before importing
 *
 * Note that this isn't just for XML imports. Data records from other formats (CSV, JSON,
 * Excel) are converted to SimpleXML objects internally for processing.
 *
 * @param $xml_node SimpleXMLElement - An object holding values for the current record
 *
 * @return SimpleXMLElement
 */
function wpai_xml_row($xml_node)
{
    // Modify simpleXML object as needed
    return $xml_node;
}

add_filter('wpallimport_xml_row', 'wpai_xml_row', 10, 1);


// ----------------------------
// Example uses below
// ----------------------------


/**
 * Example of adding a child element called "title"
 *
 */
function add_title_node($node)
{
    $result = $node->xpath('//mydata[1]/*[1]');

    if (!empty($result[0])) {
        $name = $result[0]->getName();
        $node->addChild('title', $name);
    }

    return $node;
}

add_filter('wpallimport_xml_row', 'add_title_node', 10, 1);

/**
 * Example of converting HTML or XML embeded within a specific tag into HTML usable for import
 *
 */
function parse_content($node){
    $result = $node->xpath('//content'); // replace this with the XPath of the node
    if (!empty($result[0])) {
        // Optional replacements to convert custom XML tags to HTML equivalent
        $find_xml = array('section_title','section_content','section', 'texteparagraphe','titreparagraphe');
        $replace_html = array('h1','p','div','p','h2');
        $html = str_replace($find_xml, $replace_html, $result[0]->asXML());
        $node->addChild('content_html', $html);
    }
    return $node;
}

add_filter('wpallimport_xml_row', 'parse_content', 10, 1);