Display textarea content with line breaks in html page

Let us see how javascript, php, and ruby display the content of textarea with line breaks

Javascript:

document.getElemnetById(‘textareacontent’).value.replace(/\n/g,’<br>’);

PHP:

preg_replace(“/\n/”,”<br>”,$_REQUEST['t1']);

Ruby:

(teaxtareacontent).gsub(/\n/,”<br>”)