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Delete key=value from url query string

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  1. /**
  2. 	* Remove key/value pair from url query string
  3. 	*
  4. 	* @param $qry string Query String
  5. 	* @param $key string Query key to remove
  6. 	* @return string Modified query string
  7. 	* @static
  8. 	*/
  9.  
  10. 	function removeQueryVal($qry,$qryKey)
  11. 	{
  12. 		$qry_new = '';
  13.  
  14. 		if(strlen($qry)>1)
  15. 		{
  16. 			$qry = (strpos($qry,"?")!==false) ? substr($qry,1) : $qry;
  17.  
  18. 			$qryArr = (strpos($qry,'&')!==false) ? explode("&",$qry) : $qry;
  19.  
  20. 			//build query array with removed $key value
  21. 			foreach($qryArr as $val)
  22. 			{
  23. 				//ignore $key query value
  24. 				if(strpos($val,$qryKey.'=')===false)
  25. 				{
  26. 					$qryPair = explode('=',$val);
  27. 					$qryval[$qryPair[0]] = $qryPair[1];
  28. 				}
  29. 			}
  30.  
  31. 			//rebuild new query string
  32. 			foreach($qryval as $key=>$val)
  33. 			{
  34. 				$qry_new .= '&'.$key.'='.$val;
  35. 			}
  36. 			$qry_new = substr($qry_new,1);
  37.  
  38. 			$qry_new = ($qry_new) ? '?'.$qry_new : '';
  39. 		}
  40.  
  41. 		return $qry_new;
  42. 	}

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