실시간 버스 도착 정보 크롤링

bus_crawler.php

<?php
/* FIXME. change strBusNumber !! */
$url = "http://bus.go.kr/xmlRequest/getStationByUid.jsp?strBusNumber=23248";
$ref_url = "";
$data = array();

function curl($url, $ref_url, $data)
{
	$ch = curl_init();

	curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.94 Safari/537.36");
	curl_setopt($ch, CURLOPT_TIMEOUT, 30);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);

	curl_setopt($ch, CURLOPT_URL, $url);
	//curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_REFERER, $ref_url);

	curl_setopt($ch, CURLOPT_HEADER, TRUE);
	curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
	curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
	curl_setopt($ch, CURLOPT_POST, TRUE);
	curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
	ob_start();

	$res = curl_exec ($ch);
	$result = explode("\n", $res); // 7
	echo " ---------------------------------\n";
	for ($i = 0; $i < count($result); $i++) {
		if (strstr($result[$i], "rtNm")) {
			sscanf($result[$i], "\t\t<rtNm>%d</rtNm>", $bus);
			//echo " | Bus : $bus \n";
			printf("| %s \n", " Bus : $bus ");
		} else if (strstr($result[$i], "arrmsg1")) {
			sscanf($result[$i], "\t\t<arrmsg1>%[^<]</arrmsg1>", $msg1);
			printf("|  %s \n", " 1) $msg1 ");
		} else if (strstr($result[$i], "arrmsg2")) {
			sscanf($result[$i], "\t\t<arrmsg2>%[^<]</arrmsg2>", $msg2);
			printf("|  %s \n", " 2) $msg2 ");
		} else if (strstr($result[$i], "gpsX")) {
			echo " ---------------------------------\n";
		}

	}
	system("date");

	return 1;
	ob_end_clean();
	curl_close($ch);
	unset($ch);
}

$result = curl($url, $ref_url, $data);
?>

run e.g.)
while [ 1 ] ;do clear;php bus_crawler.php;sleep 5;done