i have one piece of code which calls to an api service via JQuery ajax Post. Ajax calls a PHP file and PHP file calls a curl code which references to the API. Now I have called suppose 5 simultaneous calls and these calls takes around 15 seconds each.
Now suppose one call has returned response and I do not want to wait for the rest of them to finish. I want to execute a curl_close on all of them and move forward so that the next page doesn't waste time on closing all those curls. How can I achieve that.
Here are my three files:
Index.php
<?php
session_start();
?>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
</head>
<body>
<div><button onclick="startAjaxRequests();">Click To Start</button> </div>
<div id="output_div">
Your output will be printed here:<br>
</div>
<div><button onclick="cancelXhrRequests();">Abort and Reload</button> </div>
<script>
var xhrRequests = [];
function startAjaxRequests() {
var data;
var cities = ["cairo", "pune", "dubai", "london", "jodhpur"];
var lats = ["30.05", "18.52", "25.20", "51.50", "26.28"];
var longs = ["31.23", "73.85", "55.27", "0.12", "73.02"];
for(var i=0;i<cities.length;i++) {
data = {latitude: lats[i], longitude: longs[i], section: "search_results"};
var xhr = $.ajax({
type: "POST",
url: "location_penny.php",
data: data,
success: function (result) {
//cancel.html(result);
$("#output_div").append("Resutls for "+cities.toSource()+" are: "+result+"<br>");
},
async: true
});
xhrRequests.push(xhr);
}
}
function cancelXhrRequests(){
for (var i = 0; i < xhrRequests.length; i++) {
xhrRequests[i].abort();
}
var data = {section: "close_curls"};
$.ajax({
type: "POST",
url: "location_penny.php",
data: data,
success: function (result) {
alert(result);
window.location.href = 'http://127.0.0.1:8080/test/fork_curl/redirected.php';
},
async: true
});
}
</script>
</body>
</html>
Location_penny.php
<?php
error_reporting(E_ALL);
ini_set('max_execution_time', 300);
session_start();
$soapUrl = "my soap URL";
$api_username = "username";
$api_password = "password";
function apiAddittionalDetails($lat,$lang){
global $soapUrl, $api_username, $api_password;
$xml_addittional_details = 'The XML Request';
$headers = array("Content-type: text/xml;charset=\"utf-8\"", "Accept: text/xml", "Cache-Control: no-cache", "SOAPAction: http://tempuri.org/IDynamicDataService/ServiceRequest", "Pragma: no-cache", "Content-length: " . strlen($xml_addittional_details));
$url = $soapUrl;
// PHP cURL for https connection with auth
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_TIMEOUT, 1000);
curl_setopt($ch, CURLOPT_ENCODING , "gzip");
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_addittional_details);
// the SOAP request
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
// converting
array_push($_SESSION['curls'], $ch);
$response = curl_exec($ch);
return $response;
curl_close($ch);
}
if($_POST['section']=="search_results"){
$response = apiAddittionalDetails($_POST['latitude'], $_POST['longitude']);
$doc = simplexml_load_string($response);
$add_nodes = $doc->xpath ('//Address');
echo count($add_nodes);
}else if($_POST['section']=="close_curls"){
$count = 0;
foreach($_SESSION['curls'] as $curl_object){
$count++;
curl_close($curl_object);
}
echo $count;
}
?>
redirected.php
<?php
error_reporting(E_ALL);
ini_set('max_execution_time', 300);
session_start();
$soapUrl = "my soap URL";
$api_username = "username";
$api_password = "password";
function apiAddittionalDetails($lat,$lang){
global $soapUrl, $api_username, $api_password;
$xml_addittional_details = 'The XML Request';
$headers = array("Content-type: text/xml;charset=\"utf-8\"", "Accept: text/xml", "Cache-Control: no-cache", "SOAPAction: http://tempuri.org/IDynamicDataService/ServiceRequest", "Pragma: no-cache", "Content-length: " . strlen($xml_addittional_details));
$url = $soapUrl;
// PHP cURL for https connection with auth
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_TIMEOUT, 1000);
curl_setopt($ch, CURLOPT_ENCODING , "gzip");
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_addittional_details);
// the SOAP request
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
// converting
array_push($_SESSION['curls'], $ch);
$response = curl_exec($ch);
return $response;
curl_close($ch);
}
echo(date("Y-m-d H:i:s",time()));
echo "<br>";
$response = apiAddittionalDetails("30.05", "31.23");
echo(date("Y-m-d H:i:s",time()));
echo "<br>";
$doc = simplexml_load_string($response);
$add_nodes = $doc->xpath ('//Address');
echo count($add_nodes);
?>
If I click the abourt and redirect button on index.php while there are curl requests still being executed I don't see the page moving forward until 50-60 seconds which is the time I believe required in closing all the curl handles.
After that the page goes forward. I have tried the session technique but the code says curl object required while integer is passed in the location_penny.php file.
