I have to run a php script daily, the code is this:
<?php
// SET PROCESS PRIORITY
// SETTING UP THE LOG FILE
$ob_file = fopen('sync.log','w');
function ob_file_callback($buffer)
{
global $ob_file;
fwrite($ob_file,$buffer);
}
ob_start('ob_file_callback');
// GET PARAMETERS
$lastid=$_GET['lastid'];
if ($lastid && !is_numeric($lastid)){
die("Loser");
}
// SERVER ROOT CONFIGURATION
$serverpath = 'http://dev.xxx.com/ops/';
// FACEBOOK SDK
require '../classes/facebook.php';
require '../classes/fbconfig.php';
// MYSQL CONFIG
include('../dbconfig.php');
// OPEN DATABASE CONNECTION $CON
$con = mysql_connect($dbhost,$dbuser,$dbpass);
mysql_select_db($dbname, $con);
// GET LAST ID FROM DATABASE AND COUNT TO ZERO
// ONLY 10 PER TIMES
$sql = "SELECT * FROM ops_pictures
ORDER BY id DESC
LIMIT 10;";
$query = mysql_query($sql,$con);
while($row = mysql_fetch_array($query)) {
if (!$lastid){
$lastid = $row['id'];
}
}
//START COUNTING
for ($i = $lastid; $i >= 0 ; $i --)
{
// set_time_limit(); // RESET TIMEOUT TO GO FOREVER
echo $i .' - ';
// LOAD RECORDS FROM FACEBOOK AND DISPLAY THE PHOTO URL
// Get User ID
$user = $facebook->getUser();
// Login or logout url will be needed depending on current user state.
if ($user) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$loginUrl = $facebook->getLoginUrl(
array(
'scope' => 'email,offline_access,user_likes,read_stream,publish_stream,user_about_me,user_photos'
)
);
};
// FQL QUERY FOR THE PICTURE
$actualurl = $serverpath . 'photo.php?pid=' . $i;
//echo $actualurl;
try {
$fql = 'SELECT url, normalized_url, share_count, like_count, comment_count, total_count,
commentsbox_count, comments_fbid, click_count FROM link_stat WHERE url="'.$actualurl.'"';
$ret_obj = $facebook->api(array(
'method' => 'fql.query',
'query' => $fql,
));
// FQL queries return the results in an array, so we have
// to get the user's name from the first element in the array.
$linkstat = $ret_obj[0];
$theurl = $linkstat['url'];
$sharecount = $linkstat['share_count'];
$likecount = $linkstat['like_count'];
$commentcount = $linkstat['comment_count'];
$totalcount = $linkstat['total_count'];
} catch(FacebookApiException $e) {
// If the user is logged out, you can have a
// user ID even though the access token is invalid.
// In this case, we'll get an exception, so we'll
// just ask the user to login again here.
$login_url = $facebook->getLoginUrl();
echo 'Please <a href="' . $login_url . '">login.</a>';
error_log($e->getType());
error_log($e->getMessage());
}
// PUT THE RECORDS IN
$sql = "UPDATE ops_pictures SET likecount='$likecount', sharecount='$sharecount', totalcount ='$totalcount'
WHERE id='$i'";
mysql_query($sql,$con);
//END COUNT
}
// CLOSE DATABASE
mysql_close($con);
ob_end_flush();
?>
Basically it is a cycle that for every picture in my website takes and FQL query from Facebook and store the result in my MYSQL database. I even makes a log of the files done.
Problems: - if i call it from the browser it locks up the server and any php file i try to load waits forever and gives a 500 server error. - i don't want it to timeout because i want it to cycle all the pictures in the database and refresh them with the new values
Resolutions - Cron Job (this should allow the script to run in "background" mode right? - Split the script in different parts processing 10 pictures per time (not good) - Use proc_nice() before the code to assign a lower priority to the whole php instructions.
Actually i have this script overloading the server and anything gets unusable, what do you think about that ?
Thanks a lot !!