am trying to get progress of all the files being copied.
$qryStr = explode(",",$_POST['data']);
$timestamp=$_POST['timestamp'];
$size=sizeof($qryStr);
//echo $size;
$offset=100/$size;
$progress=0;
$_SESSION[$timestamp]=$progress;
session_start();
foreach($qryStr as $value) {
$src = $value;
$dest = "../home/tmp/";
$cmd = 'scp '.$src.' '.$dest.'';
sleep(1);
$progress+=$offset;
$_SESSION[$timestamp] = ceil($progress);
var_dump($_SESSION[$timestamp]);
$result = shell_exec($cmd);
}
code to get progress stored in session
session_start();
var_dump($_SESSION['timestamp']);
getProgress($_GET['timestamp']);
function getProgress($timestamp) {
if (isset($_SESSION[$timestamp])) {
echo json_encode(array("progress" => $_SESSION[$timestamp]));
} else {
echo json_encode(array("progress" => -1));
}
}
when i try to accesss the session data , am getting it as null. any problem in my script.
You have used $timestamp in the following line,
$_SESSION[$timestamp] = ceil($progress);
Instead, use
$_SESSION['timestamp'] = ceil($progress);
Only then it will be available in $_SESSION['timestamp'], else will be in $_SESSION['2013-10-28 14:33:00'], something like that which is non-generic.
Related
I'm trying to retrieve data from coinmarketcap's api and store the data to cache file. If the cache file is older than 10 minutes, retrieve new data and store to cache file. I have been able to get everything to work, except for caching the data. The cache file is never created in the plugin directory. Any help would be appreciated. Here is the code :
function Tickers($data){
foreach($data as $item){
echo "$item->symbol";
echo "<br>";
echo '<span>$' . $item->price_usd . '</span>';
echo "<br>";
echo "<br>";
}
}
function getdata(){
$time = 600; //seconds
$cache_file = 'wp-content/plugins/cryptocurrency_tickers/cache.txt';
if(file_exists($cache_file)){
if(time() - filemtime($cache_file) > $time) {
// too old , re-fetch
$data = json_decode(file_get_contents('https://api.coinmarketcap.com/v1/ticker/?limit=20'));
file_put_contents(cache_file,json_encode($data));
}
else{
//data is current
}
}else {
// create cache
$data = json_decode(file_get_contents('https://api.coinmarketcap.com/v1/ticker/?limit=20'));
file_put_contents(cache_file, json_encode($data));
}
$data = json_decode(file_get_contents($cache_file));
Tickers($data);
}
Look at your code again, missing '$' in front of 'cache_file' on file_put_contents
file_put_contents(cache_file,json_encode($data));
should be
file_put_contents($cache_file,json_encode($data));
Also when you get the json data from the API first you decode, then encode, why you didn't save the data directly from the API, it's already json encoded.
Better version of your code:
function Tickers($data){
foreach($data as $item){
echo "$item->symbol";
echo "<br>";
echo '<span>$' . $item->price_usd . '</span>';
echo "<br>";
echo "<br>";
}
}
function getdata(){
$time = 600; //seconds
$cache_file = '/path/to/cache.txt';
if(file_exists($cache_file)){
if(time() - filemtime($cache_file) > $time) {
// too old , re-fetch
$data = file_get_contents('https://api.coinmarketcap.com/v1/ticker/?limit=20');
file_put_contents($cache_file, $data);
} else{
//data is current
}
} else {
// create cache
$data = file_get_contents('https://api.coinmarketcap.com/v1/ticker/?limit=20');
file_put_contents($cache_file, $data);
}
$data = json_decode(file_get_contents($cache_file));
Tickers($data);
}
getdata();
Also make sure the plugin directory is writable by your web server user.
I have a project where i need to send GPS coordinates via. socket in every 6 seconds. The coordinates are stored in a MYsql database. I run a query every 6 seconds and if the last position is different from the current position the application sends the data to the remote server. In the browser it works like a charm but in the terminal i can't use Sessions.
I tried apc_add but according to the PHP manual it is removed a long time ago.
What is the most common way to do a comparsion like that? Store the last coordinates into the database or a text file? Or is there a way to sotore it in run time?
**Here is my main code: **
<?php
require 'bootstrap.php';
use App\Libs\appServiceProvider;
use App\Libs\socketServiceProvider;
use Socket\Raw\Factory;
use App\Models\Koordinata;
$app = new appServiceProvider;
if (empty($_SESSION['lat']) || empty($_SESSION['lon'])) {
$_SESSION['lat'] = 0;
$_SESSION['lon'] = 0;
}
$lastLat = $_SESSION['lat'];
$lastLon = $_SESSION['lon'];
$currentLat = $app->getAllCoordinatesByFszgId($application['fszgId'])->last()->lat;
$currentLon = $app->getAllCoordinatesByFszgId($application['fszgId'])->last()->lon;
if ($lastLat != $currentLat && $lastLon != $currentLon) {
$factory = new Factory();
$socket = $factory->createClient('REMOTEADDRESSE');
echo "Kapcsolat létrehozva\n";
$socket->write("MESSAGE");
echo "Üzenet elküldve\n";
var_dump("Válasz: " . $socket->read(8192));
$socket->close();
} else {
echo "Idle";
$log->addDebug("GPS data NOT CHANGED! STATUS IDLE!");
}
$_SESSION['lat'] = $app->getAllCoordinatesByFszgId($application['fszgId'])->last()->lat;
$_SESSION['lon'] = $app->getAllCoordinatesByFszgId($application['fszgId'])->last()->lon;
?>
Okay, I did it with database and works fine. Here is the code:
<?php
require 'bootstrap.php';
use App\Libs\appServiceProvider;
use App\Libs\socketServiceProvider;
use Socket\Raw\Factory;
use App\Models\Koordinata;
use App\Models\TempKoordinata;
$app = new appServiceProvider;
$last = TempKoordinata::find(1);
if(!empty($last)) {
$lastLat = $last->lat;
$lastLon = $last->lon;
} else {
$temp = new TempKoordinata();
$temp->id = 1;
$temp->lat = 0;
$temp->lon = 0;
$temp->save();
$log->addDebug('No data to compare! Empty tempCoordinate table! Set values to ZERO!');
}
$currentLat = $app->getAllCoordinatesByFszgId($application['fszgId'])->last()->lat;
$currentLon = $app->getAllCoordinatesByFszgId($application['fszgId'])->last()->lon;
if ($lastLat != $currentLat && $lastLon != $currentLon) {
/*$factory = new Factory();
$socket = $factory->createClient('REMOTE');
echo "Kapcsolat létrehozva\n";
$socket->write("MESSAGE");
echo "Üzenet elküldve\n";
var_dump("Válasz: " . $socket->read(8192));
$socket->close();*/
echo "Sending\n";
} else {
echo "Idle\n";
$log->addDebug("GPS data NOT CHANGED! STATUS IDLE!");
}
TempKoordinata::destroy(1);
//Elmentjük a mostani GPS koordinátát
$count = TempKoordinata::all();
//Ha üres az adatbázis akkor elmentjük a koordinátákat
if ($count->count() == 0) {
$temp = new TempKoordinata();
$temp->id = 1;
$temp->lat = $currentLat;
$temp->lon = $currentLon;
$temp->save();
} else {
$log->addDebug("More than one item in the temp table!");
}
?>
Details: I have a php file that runs some sql and retrieve a list of information. I run through a loop of that information and want to call another php page and pass it some parameters from the data I am looping through.
Question: How do I execute another php page from within my php?
What I Have Tried: This is the php code that should be calling the second php page (the while loop should be calling the simplepush.php page for each result I get):
<?php
require_once "../database/config.php";
header("Content-type: application/json");
$sql = "SELECT user_ip_address FROM ft_users";
$res = mssql_query($sql);
if (mssql_num_rows($res)) {
while ($op = mssql_fetch_assoc($res)) {
exec('simplepush.php?token = ' . $op . '');
$arr[] = $op;
}
echo json_encode($arr);
//$op = mssql_fetch_assoc($res);
//$op['response'] = 200;
} else {
http_response_code(420);
$op = array(
'response' => 420
);
echo json_encode($op);
}
mssql_close();
?>
I have tried the following:
include ('simplepush.php?token = '.$op.'');
exec ('simplepush.php?token = '.$op.'');
require ('simplepush.php?token = '.$op.'');
shell_exec ('simplepush.php?token = '.$op.'');
Just do:
include ('simplepush.php');
Now $op will be available in simplepush.php. Consider this example:
//index.php
while ($op = mssql_fetch_assoc($res)) {
include ('simplepush.php');
$arr[] = $op;
}
//simplepush.php
print_r($op);
The contents of $op will be output each time through the loop.
I have a basic online visitors counter. I get it from here. It works verry well but I have a issue. I use it on online game and I have multiple servers. I use it for server online counter. I did add counter pages to the servers via iframe and it counts very well.
But the problem is, I want to display that numbers on index (index.php) page. But when I use :
<?php include("server1.php");?>
it counts index page users as well. I don't want this. How can I make it don't count IP's from index.php?
Here, my codes
Counter (server1.php)
<?php
$dbfile = "game/database/1.db"; // path to data file
$expire = 100; // average time in seconds to consider someone online before removing from the list
if(!file_exists($dbfile)) {
die("Error: Data file " . $dbfile . " NOT FOUND!");
}
if(!is_writable($dbfile)) {
die("Error: Data file " . $dbfile . " is NOT writable! Please CHMOD it to 666!");
}
function CountVisitors() {
global $dbfile, $expire;
$cur_ip = getIP();
$cur_time = time();
$dbary_new = array();
$dbary = unserialize(file_get_contents($dbfile));
if(is_array($dbary)) {
while(list($user_ip, $user_time) = each($dbary)) {
if(($user_ip != $cur_ip) && (($user_time + $expire) > $cur_time)) {
$dbary_new[$user_ip] = $user_time;
}
}
}
$dbary_new[$cur_ip] = $cur_time; // add record for current user
$fp = fopen($dbfile, "w");
fputs($fp, serialize($dbary_new));
fclose($fp);
$out = sprintf("%03d", count($dbary_new)); // format the result to display 3 digits with leading 0's
return $out;
}
function getIP() {
if(isset($_SERVER['HTTP_X_FORWARDED_FOR'])) $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
elseif(isset($_SERVER['REMOTE_ADDR'])) $ip = $_SERVER['REMOTE_ADDR'];
else $ip = "0";
return $ip;
}
$visitors_online = '0'+CountVisitors();
?>
<?=$visitors_online;?>
Iframe (I use it on server pages)
<iframe name="visitors" src="../1.php" width="1" hidden="true" height="1" frameborder="0" scrolling="no"></iframe>
php include (index.php)
Server 7 - Online Players:<?php include("7.php");?>
make a server2.php with this code
<?php
$dbfile = "game/database/1.db"; // path to data file
$expire = 100;
if(!file_exists($dbfile)) {
die("Error: Data file " . $dbfile . " NOT FOUND!");
}
if(!is_writable($dbfile)) {
die("Error: Data file " . $dbfile . " is NOT writable! Please CHMOD it to 666!");
}
function CountVisitors() {
global $dbfile, $expire;
$cur_time = time();
$dbary_new = array();
$dbary = unserialize(file_get_contents($dbfile));
if(is_array($dbary)) {
while(list($user_ip, $user_time) = each($dbary)) {
if(($user_time + $expire) > $cur_time) {
$dbary_new[$user_ip] = $user_time;
}
}
}
$out = sprintf("%03d", count($dbary_new)); // format the result to display 3 digits with leading 0's
return $out;
}
$visitors_online = '0'+CountVisitors();
?>
<?=$visitors_online;?>
and use it like server1.php
Consider the following AJAX call to load RSS news data on click event:
$(function() {
$(document).ready(function() {
$('.msg_head').eq(0).click(function(){
$('.msg_body').eq(0).load('printSideNews.php');
$('.loadMessage').eq(2).hide();
});
});
});
printSideNews.php looks like this:
include ('newsFeed.php');
function printNewsMenu($itemD){
for ($i = 0; $i < 4; $i++) {
if($itemD==null)
echo "An error has occured, please try again later";
$article_title = $itemD[$i]->title;
$article_link = $itemD[$i]->link;
echo "<a href='".$article_link."' title='".$article_title."' target='_blank'>". $article_title. " </a></br>". PHP_EOL;
}
printNewsMenu($itemD);
The included newsFeed.php file lloks like:
$urlD = "someurl";
$xmlD = simplexml_load_file($urlD);
$itemD = $xmlD->channel->item;
I need to cache the $itemD or the $xmlD object - not sure which one. This should be cached for 1 hour then taken again from the url. Any help with code caching this mess will be greatly appreciated.
take a look at this function:
<?php
function cacheObject($url,$name,$age = 86400)
{
// directory in which to store cached files
$cacheDir = "cache/";
// cache filename constructed from MD5 hash of URL
$filename = $cacheDir.$name;
// default to fetch the file
$cache = true;
// but if the file exists, don't fetch if it is recent enough
if (file_exists($filename))
{
$cache = (filemtime($filename) < (time()-$age));
}
// fetch the file if required
if ($cache)
{
$xmlD = simplexml_load_file($url);
$itemD = $xmlD->channel->item;
file_put_contents($filename,serialize($itemD));
// update timestamp to now
touch($filename);
}
// return the cache filename
return unserialize(file_get_contents($filename));
}
$urlD = "someurl";
$itemD = cacheObject($urlD,'cacheobject',3600);