Expects to be string, array given

How can I make it from an array into a string?

			$tpl_fields = array();
			$tpl_fields['row'] = $tpl_fields['blockrow'] = array();

			foreach ($profile_row as $ident => $ident_ary)
			{
				$value = $this->get_profile_value($ident_ary);

				if ($value === NULL)
				{
					continue;
				}

				$tpl_fields['row'] += array(
					'PROFILE_' . strtoupper($ident) . '_VALUE'	=> $value,
					'PROFILE_' . strtoupper($ident) . '_TYPE'	=> $ident_ary['data']['field_type'],
					'PROFILE_' . strtoupper($ident) . '_NAME'	=> $ident_ary['data']['lang_name'],
					'PROFILE_' . strtoupper($ident) . '_EXPLAIN'=> $ident_ary['data']['lang_explain'],

					'S_PROFILE_' . strtoupper($ident)			=> true
				);

				$tpl_fields['blockrow'][] = array(
					'PROFILE_FIELD_VALUE'	=> $value,
					'PROFILE_FIELD_TYPE'	=> $ident_ary['data']['field_type'],
					'PROFILE_FIELD_NAME'	=> $ident_ary['data']['lang_name'],
					'PROFILE_FIELD_EXPLAIN'	=> $ident_ary['data']['lang_explain'],
 
					'S_PROFILE_' . strtoupper($ident)		=> true
				);
			}
		
			return urlencode($tpl_fields);

PHP:

The return urlencode is what's being a booger. Sorry if this is a newb question, as I am a newb

 

It's fixed - nevermind.