PHP Rules for CSV exports for UTF-8 and old browsers. Dynamic Exporting with rules to support each type of format which is extendable to call a parser on inputs.

export.php

<?php
	//Do Download Headers if we have nothing else to show
	if($uri_page[$no] == 'export'){
		//Universal
		ini_set('zlib.output_compression','Off'); 
		
		if($uri_page[$no+1] == 'csv'){
			//CSV
			header('Content-Encoding: UTF-8');
			header('Content-type: text/csv; charset=UTF-8');
			header('Expires: ' . gmdate('D, d M Y H:i:s') . ' GMT');
			header('Content-Disposition: attachment; filename="adtrafik_export.'.$uri_page[$no+1].'"');
			
			//IE FIX
			if(strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE')) {
				header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
				header('Pragma: public');
			}else{
				header('Pragma: no-cache');
			}
			echo "\xEF\xBB\xBF"; // UTF-8 BOM
		}else{
			//JSON
			header('Content-Type: ' . 'text/plain');
			header('Expires: ' . gmdate('D, d M Y H:i:s') . ' GMT');
			header('Content-Disposition: attachment; filename="adtrafik_export.'.$uri_page[$no+1].'"');
			
			//IE FIX
			if(strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE')) {
				header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
				header('Pragma: public');
			}else{
				header('Pragma: no-cache');
			}
		}//END IF TYPE CSV
		
	}//END IF EXPORT
?>