Illegal string offset 'root'

I’m getting an error message on this page where I use the [family-tree] shortcode.

https://family2remember.us/family-tree-2/

Please help – I have no idea what to do. Here are some more details:

The entire error message is:

Warning: Illegal string offset ‘root’ in /home2/hookon/public_html/FAMILY2REMEMBER.US/wp-content/plugins/wp-family-tree/family-tree.php on line 364

Line 364 is:

$root = $atts[‘root’];

Here is the entire PHP file:

<?php
/**
* @package WP Family Tree
* @author Arvind Shah
* @version 1.0.5
*/
/*
Plugin Name: WP Family Tree
Plugin URI: https://www.wpfamilytree.com/
Description: Family Tree plugin
Author: Arvind Shah
Version: 1.0.5
Author URI: https://www.esscotti.com/

Copyright (c) 2010 – 2013 Arvind Shah
WP Family Tree is released under the GNU General Public
License (GPL) https://www.gnu.org/licenses/gpl.txt

*/
require_once(‘wpft_options.php’);
require_once(‘class.node.php’);
require_once(‘class.tree.php’);

/* Render a list of nodes. */
function family_list() {

wpft_options::check_options();

$the_family = tree::get_tree();

$html = “”;
// Print information about each family member…
foreach ($the_family as $fm) {
$html .= $fm->get_html($the_family);
$html .= ‘<hr>’;
}
return $html;
}

/* Render the tree. */
function family_tree($root=”) {
$the_family = tree::get_tree();
$out = ”;
$ancestor = ”;

if (!empty($_GET[‘ancestor’])) {
$ancestor = $_GET[‘ancestor’];
} else {
if (!empty($root)) {
$ancestor = $root;
} else {
$node = reset($the_family);
$ancestor = ($node!==false)?$node->post_id:’-1′;
}
}

if (!is_numeric($ancestor)) {
// find post by post title and assigns the post id to ancestor
$ancestor = tree::get_id_by_name($ancestor, $the_family);
}

$render_from_parent = true;
if ($render_from_parent) {
$node = tree::get_node_by_id($ancestor, $the_family);
if (!empty($node->father)) {
$ancestor = $node->father;
} else if (!empty($node->mother)) {
$ancestor = $node->mother;
}
}

$out .= “<script type=’text/javascript’>”;

// Generate javascript tree text…
$tree_data_js = “var tree_txt = new Array(\n”;
$the_family = tree::get_tree();
$first = true;
foreach ($the_family as $node) {
if (!$first) {
$tree_data_js .= ‘,’.”\n”;
} else {
$first = false;
}
$str = ‘”EsscottiFTID=’.$node->post_id.'”,’.”\n”;
$str .= ‘”Name=’.addslashes($node->name).'”,’.”\n”;
if ($node->gender==’m’) {
$str .= ‘”Male”,’.”\n”;
} else if ($node->gender==’f’) {
$str .= ‘”Female”,’.”\n”;
}
$str .= ‘”Birthday=’.$node->born.'”,’.”\n”;
if (!empty($node->died) && $node->died != ‘-‘) {
$str .= ‘”Deathday=’.$node->died.'”,’.”\n”;
}

if (isset($node->partners) && is_array($node->partners)) {
foreach ($node->partners as $partner) {
if (is_numeric($partner)) {
$str .= ‘”Spouse=’.$the_family[$partner]->post_id.'”,’.”\n”;
}
}
}

$str .= ‘”Toolbar=toolbar’.$node->post_id.'”,’.”\n”;
$str .= ‘”Thumbnaildiv=thumbnail’.$node->post_id.'”,’.”\n”;

$str .= ‘”Parent=’.$the_family[$node->mother]->post_id.'”,’.”\n”;
$str .= ‘”Parent=’.$the_family[$node->father]->post_id.'”‘;
$tree_data_js .= $str;
}
$tree_data_js .= ‘);’.”\n”;
$out .= $tree_data_js;
// End generate javascript tree text.

// $out .= ‘AddOnload(add_drag);’.”\n”;
$out .= ‘BOX_LINE_Y_SIZE = “‘. wpft_options::get_option(‘generationheight’).'”;’.”\n”;
$out .= ‘canvasbgcol = “‘. wpft_options::get_option(‘canvasbgcol’).'”;’.”\n”;
$out .= ‘nodeoutlinecol = “‘.wpft_options::get_option(‘nodeoutlinecol’).'”;’.”\n”;
$out .= ‘nodefillcol = “‘. wpft_options::get_option(‘nodefillcol’).'”;’.”\n”;
$out .= ‘nodefillopacity = ‘.wpft_options::get_option(‘nodefillopacity’).’;’.”\n”;
$out .= ‘nodetextcolour = “‘.wpft_options::get_option(‘nodetextcolour’).'”;’.”\n”;
$out .= ‘setOneNamePerLine(‘.wpft_options::get_option(‘bOneNamePerLine’).’);’.”\n”;
$out .= ‘setOnlyFirstName(‘.wpft_options::get_option(‘bOnlyFirstName’).’);’.”\n”;
$out .= ‘setBirthAndDeathDates(‘.wpft_options::get_option(‘bBirthAndDeathDates’).’);’.”\n”;
$out .= ‘setConcealLivingDates(‘.wpft_options::get_option(‘bConcealLivingDates’).’);’.”\n”;
$out .= ‘setShowSpouse(‘.wpft_options::get_option(‘bShowSpouse’).’);’.”\n”;
$out .= ‘setShowOneSpouse(‘.wpft_options::get_option(‘bShowOneSpouse’).’);’.”\n”;
$out .= ‘setVerticalSpouses(‘.wpft_options::get_option(‘bVerticalSpouses’).’);’.”\n”;
$out .= ‘setMaidenName(‘.wpft_options::get_option(‘bMaidenName’).’);’.”\n”;
$out .= ‘setShowGender(‘.wpft_options::get_option(‘bShowGender’).’);’.”\n”;
$out .= ‘setDiagonalConnections(‘.wpft_options::get_option(‘bDiagonalConnections’).’);’.”\n”;
$out .= ‘setRefocusOnClick(‘.wpft_options::get_option(‘bRefocusOnClick’).’);’.”\n”;
$out .= ‘setShowToolbar(‘.wpft_options::get_option(‘bShowToolbar’).’);’.”\n”;
$out .= ‘setNodeRounding(‘.wpft_options::get_option(‘nodecornerradius’).’);’.”\n”;

if (wpft_options::get_option(‘bShowToolbar’) == ‘true’) {
$out .= ‘setToolbarYPad(20);’.”\n”;
} else {
$out .= ‘setToolbarYPad(0);’.”\n”;
}
$out .= ‘setToolbarPos(true, 3, 3);’.”\n”;
$out .= ‘setMinBoxWidth(‘.wpft_options::get_option(‘nodeminwidth’).’);’.”\n”;

$out .= ‘jQuery(document).ready(function($){‘.”\n”;
$out .= ‘ add_drag();’.”\n”;
$out .= ‘ familytreemain();’.”\n”;
$out .= ” var midpos = $(‘#familytree svg’).width()/2 – $(‘#borderBox’).width()/2;”.”\n”;
$out .= ” $(‘#dragableElement’).css(‘left’, -midpos);”.”\n”;
$out .= ‘});’.”\n”;

$out .= ‘</script>’;

/*
setDeath = function(bState)
*/
$out .= ‘<input type=”hidden” size=”30″ name=”focusperson” id=”focusperson” value=”‘.$ancestor.'”>’.”\n”;

$out .= ‘<div id=”borderBox”>’.”\n”;
$out .= ‘<div id=”dragableElement”>’;
$out .= ‘<div id=”tree-container”>’.”\n”;
$out .= ‘<div id=”toolbar-container”>’.”\n”;
foreach ($the_family as $node) {
$out .= $node->get_toolbar_div();
}
$out .= ‘</div>’.”\n”;
$out .= ‘<div id=”thumbnail-container”>’.”\n”;
foreach ($the_family as $node) {
$out .= $node->get_thumbnail_div();
}
$out .= ‘</div>’.”\n”;
$out .= ‘<div id=”familytree”></div>’.”\n”;
$out .= ‘<img name=”hoverimage” id=”hoverimage” style=”visibility:hidden;” >’.”\n”;
$out .= ‘</div>’.”\n”; // tree-container
$out .= ‘</div>’.”\n”; // borderBox
$out .= ‘</div>’.”\n”; // dragableElement
if (wpft_options::get_option(‘showcreditlink’) == ‘true’) {
$out .= ‘<p style=”text-align:left”><small>powered by WP Family Tree</small></p>’.”\n”;
}
/*
$out .='<script type=”text/javascript”>’;
$out .=’ var el = document.getElementById(\’tree-container\’);’;
$out .=’ var leftEdge = el.parentNode.clientWidth – el.clientWidth;’;
$out .=’ var topEdge = el.parentNode.clientHeight – el.clientHeight;’;
$out .=’ var dragObj = new dragObject(el, null, new Position(leftEdge, topEdge), new Position(0, 0));’;
$out .='</script>’;
*/
return $out;
}
function bio_data() {
global $post;
$ftlink = wpft_options::get_option(‘family_tree_link’);
if (strpos($ftlink, ‘?’) === false) {
echo ‘<p>post_title.'”>click here to view family tree‘;
} else {
echo ‘<p>post_title.'”>click here to view family tree‘;
}
}

function family_tree_edit_page_form()
{
global $post;
?>
<div id=”ftdiv” class=”postbox”>
<h3>Family tree info (optional)</h3>
<div class=”inside”>

<table>
<?php

$family = get_posts(‘category_name=’.wpft_options::get_option(‘family_tree_category_key’).’&numberposts=-1&orderby=title&order=asc’);
$males = array();
$females = array();
foreach ($family as $f) {
if ($f->ID != $post->ID) {
$postgender = get_post_meta($f->ID, ‘gender’, true);
if ($postgender == “m”) {
$males[] = $f;
} else if ($postgender = “f”) {
$females[] = $f;
} else {
$males[] = $f;
$females[] = $f;
}
}
}

$gender = get_post_meta($post->ID, ‘gender’, true);
$mother = get_post_meta($post->ID, ‘mother’, true);
$father = get_post_meta($post->ID, ‘father’, true);
$spouse = get_post_meta($post->ID, ‘spouse’, true);
?>
<tr><td>Gender:</td><td>
<select name=”gender” id=”gender”>
<option value=”” <?php if (empty($gender)) echo “selected=\”selected\””; ?>></option>
<option value=”m” <?php if ($gender == “m”) echo “selected=\”selected\””; ?>>Male</option>
<option value=”f” <?php if ($gender == “f”) echo “selected=\”selected\””; ?>>Female</option>
</select></td></tr>
<tr><td>Born (YYYY-MM-DD):</td><td><input type=”text” name=”born” value=”<?php echo wp_specialchars(get_post_meta($post->ID, ‘born’, true), true) ?>” id=”born” size=”80″ /></td></tr>
<tr><td>Died (YYYY-MM-DD):</td><td><input type=”text” name=”died” value=”<?php echo wp_specialchars(get_post_meta($post->ID, ‘died’, true), true) ?>” id=”died” size=”80″ /></td></tr>
<tr><td>Mother:</td><td>
<select style=”width:200px” name=”mother” id=”mother”>
<option value=”” <?php if (empty($mother)) echo “selected=\”selected\””; ?>> </option>
<?php
foreach ($females as $f) {
echo ‘<option value=”‘.$f->ID.'” ‘;
if ($f->ID == $mother) echo “selected=\”selected\””;
echo ‘>’.$f->post_title.'</option>’;
}
?>
</select>
</td></tr>

<tr><td>Father:</td><td>
<select style=”width:200px” name=”father” id=”father”>
<option value=”” <?php if (empty($father)) echo “selected=\”selected\””; ?>> </option>
<?php
foreach ($males as $f) {
echo ‘<option value=”‘.$f->ID.'” ‘;
if ($f->ID == $father) echo “selected=\”selected\””;
echo ‘>’.$f->post_title.'</option>’;
}
?>
</select>
</td></tr>

<tr><td>Spouse:</td><td>
<select style=”width:200px” name=”spouse” id=”spouse”>
<option value=”-” <?php if (empty($spouse) || $spouse==”-“) echo “selected=\”selected\””; ?>> </option>
<?php
/*
if ($gender == “f”) {
foreach ($males as $f) {
echo ‘<option value=”‘.$f->ID.'” ‘;
if ($f->ID == $spouse) echo “selected=\”selected\””;
echo ‘>’.$f->post_title.'</option>’;
}
} else if ($gender == “m”) {
foreach ($females as $f) {
echo ‘<option value=”‘.$f->ID.'” ‘;
if ($f->ID == $spouse) echo “selected=\”selected\””;
echo ‘>’.$f->post_title.'</option>’;
}
} else {
*/
foreach ($family as $f) {
echo ‘<option value=”‘.$f->ID.'” ‘;
if ($f->ID == $spouse) echo “selected=\”selected\””;
echo ‘>’.$f->post_title.'</option>’;
}
// }
?>
</select>
</td></tr>

</table>
</div>
</div>
<?php
}

// Javascript data picker
// Facebook page, skype id, IM etc
// Occupation
// Locations: birthplace, died at, current location
// Spouse

function family_tree_update_post($id)
{
$born = stripslashes(strip_tags($_POST[‘born’]));
$died = stripslashes(strip_tags($_POST[‘died’]));
$mother = stripslashes(strip_tags($_POST[‘mother’]));
$father = stripslashes(strip_tags($_POST[‘father’]));
$spouse = stripslashes(strip_tags($_POST[‘spouse’]));
$gender = stripslashes(strip_tags($_POST[‘gender’]));

if (!empty($born)) { delete_post_meta($id, ‘born’); add_post_meta($id, ‘born’, $born); } //else { add_post_meta($id, ‘born’, $born); }
if (!empty($died)) { delete_post_meta($id, ‘died’); add_post_meta($id, ‘died’, $died); } //else { add_post_meta($id, ‘died’, $died); }
if (!empty($mother)) { delete_post_meta($id, ‘mother’); add_post_meta($id, ‘mother’, $mother); } //else ( add_post_meta($id, ‘mother’, $mother); }
if (!empty($father)) { delete_post_meta($id, ‘father’); add_post_meta($id, ‘father’, $father); } //else { add_post_meta($id, ‘father’, $father); }
if (!empty($spouse)) { delete_post_meta($id, ‘spouse’); add_post_meta($id, ‘spouse’, $spouse); } //else { add_post_meta($id, ‘father’, $father); }
if (!empty($gender)) { delete_post_meta($id, ‘gender’); add_post_meta($id, ‘gender’, $gender); } //else { add_post_meta($id, ‘gender’, $gender); }
}

// Function to deal with showing the family tree on pages
function family_list_insert($content) {
if (preg_match(‘{FAMILY-MEMBERS}’,$content)) {
$ft_output = family_list();
$content = str_replace(‘{FAMILY-MEMBERS}’, $ft_output, $content);
}
return $content;
}
// Function to deal with showing the family tree on pages
function family_tree_insert($content) {
if (preg_match(‘{FAMILY-TREE}’,$content)) {
$ft_output = family_tree();
$content = str_replace(‘{FAMILY-TREE}’, $ft_output, $content);
}
return $content;
}
// Function to deal with showing biodata on posts
function bio_data_insert($content) {
global $post;
$category = wpft_options::get_option(‘family_tree_category_key’);
$cats = get_the_category(); // get array of category objects that apply to this post
foreach ($cats as $cat) {
if ($cat->slug == $category || $cat->name == $category) {
// This post is a family member post so do the work…
$the_family = tree::get_tree();
if (isset($the_family[$post->ID])) {
$html = $the_family[$post->ID]->get_html($the_family);
$content = $html.$content;
}
break;
}
}
return $content;
}

function wpft_family_tree_shortcode($atts, $content=NULL) {
$root = $atts[‘root’];
$ft_output = family_tree($root);

wpft_options::check_options();

return $ft_output;
}

function wpft_family_members_shortcode($atts, $content=NULL) {
$root = $atts[‘root’];
$ft_output = family_tree($root);
$ft_output = family_list();

wpft_options::check_options();

return $ft_output;
}

add_shortcode(‘family-tree’, ‘wpft_family_tree_shortcode’);
add_shortcode(‘family-members’, ‘wpft_family_members_shortcode’);

add_action(‘admin_menu’, ‘family_tree_options_page’);

function wpft_addHeaderCode() {
$plugloc = WP_PLUGIN_URL.’/’.str_replace(basename( __FILE__),””,plugin_basename(__FILE__));
wp_enqueue_script(‘jquery’);
wp_enqueue_script(‘raphael’, $plugloc.’raphael.js’);
wp_enqueue_script(‘familytree’, $plugloc.’familytree.js’);
wp_enqueue_script(‘dragobject’, $plugloc.’dragobject.js’);
wp_enqueue_script(‘onload’, $plugloc.’onload.js’);
wp_enqueue_style(‘ft-style’, $plugloc.’styles.css’);
}
function addFooterCode() {

}

// Enable the ability for the family tree to be loaded from pages
add_filter(‘the_content’,’family_list_insert’);
add_filter(‘the_content’,’family_tree_insert’);

if (wpft_options::get_option(‘show_biodata_on_posts_page’) == ‘true’) {
add_filter(‘the_content’,’bio_data_insert’);
}

add_action(‘init’, ‘wpft_addHeaderCode’);
add_action(‘edit_post’, ‘family_tree_update_post’);
add_action(‘save_post’, ‘family_tree_update_post’);
add_action(‘publish_post’, ‘family_tree_update_post’);

add_action(‘edit_page_form’, ‘family_tree_edit_page_form’);
add_action(‘edit_form_advanced’, ‘family_tree_edit_page_form’);
add_action(‘simple_edit_form’, ‘family_tree_edit_page_form’);

?>

https://www.ads-software.com/plugins/wp-family-tree/