Simple PHP web scraper

bldgcrawler.php

<?php
 
// bldgcrawler.php
// Loops through sequential get requests to the OSU Campus Map and retrieves
// any additional landmark info as JSON reply.  Parse JSON reply and output
// to browser.
 
// Vaughan Schmidt
// schmicar@onid.engr.oregonstate.edu
// 2014.11.13
 
header('Content-Type: application/json');
$capture = array();
 
for($i=447; $i < 1039 ; $i++) {
  $url = 'http://oregonstate.edu/campusmap/map/element?location=&locations=' . $i;
  $json = file_get_contents($url);
 
  $obj=json_decode($json, true);
 
  $name = $obj["locations"][$i]["name"];
  $abbr = $obj["locations"][$i]["abbrev"];
  $id = $obj["locations"][$i]["id"];
  $lat = $obj["locations"][$i]["marker_location"][1];
  $long = $obj["locations"][$i]["marker_location"][0];
  $addr1 = $obj["locations"][$i]["metadata"]["physical_address"];
  $notes = $obj["locations"][$i]["metadata"]["long_description"];
 
  if((int)$id > 0) {
    echo("(" . (int)$id . ",\"$abbr\",\"$name\",\"$addr1\",NULL,\"Corvallis\",\"OR\",\"97333\"," . (float)$lat . "," . (float)$long . ",\"$notes\",NOW(),NOW()),");
    echo "
 ";
  }
 
die();
?>