PHP loop curl request one by one

Question

How to make a foreach or a for loop to run only when the curl response is received..

as example :

for ($i = 1; $i <= 10; $i++) {
 $ch = curl_init();
 curl_setopt($ch,CURLOPT_URL,"http://www.example.com");

 if(curl_exec($ch)){ // ?? - if request and data are completely received
   // ?? - go to the next loop
 }
 // DONT go to the next loop until the above data is complete or returns true
}

i don't want it to move to the next loop without having the current curl request data received.. one by one, so basically it opens up the url at first time, waits for the request data, if something matched or came true then go to the next loop,

you dont have to be bothered about the 'curl' part, i just want the loop to move one by one ( giving it a specific condition or something ) and not all at once

Answer 1

The loop ought to already work that way, for you're using the blocking cURL interface and not the cURL Multi interface.

$ch = curl_init();
for ($i = 1; $i <= 10; $i++)
{
    curl_setopt($ch, CURLOPT_URL, "http://www.example.com");
    $res = curl_exec($ch);
    // Code checking $res is not false, or, if you returned the page
    // into $res, code to check $res is as expected

    // If you're here, cURL call completed. To know if successfully or not,
    // check $res or the cURL error status.

    // Removing the examples below, this code will hit always the same site
    // ten times, one after the other.

    // Example
    if (something is wrong, e.g. False === $res)
        continue; // Continue with the next iteration

    Here extra code to be executed if call was *successful*

    // A different example
    if (something is wrong)
        break; // exit the loop immediately, aborting the next iterations

    sleep(1); // Wait 1 second before retrying
}
curl_close($ch);