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strip_tags
<[^>]*>(.*)<\/[^>]*>

/(<([^>]+)>)/ig

/<(?:"[^"]*"['"]*|'[^']*'['"]*|[^'">])+>/g;

var text = '<div class="foo">bar</div>';
text.replace(/(<([^>]+)>)/ig,""); 

//---- 
extract attribute data-

(data-\w+)=["']?((?:.(?!["']?\s+(?:\S+)=|\s*\/?[>"']))+.)["']?

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