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//https://www.tiny.cloud/docs/configure/content-filtering/#extended_valid_elements
function vasu_format_TinyMCE($p){
$p[‘remove_linebreaks’] = false;
$p[‘extended_valid_elements’] = ‘h1[class|vasu_toc],h2[class|vasu_toc],h3[class|vasu_toc],h4[class|vasu_toc],h5[class|vasu_toc],h6[class|vasu_toc]’;
if (isset($p[‘entities’])){
$p[‘entities’] .= ‘,160,nbsp’;
}else{
$p[‘entities’] = ‘160,nbsp’;
}
return $p;
}
add_filter(‘tiny_mce_before_init’,’vasu_format_TinyMCE’);