Add Delay/Sleep in between url requests in multi cutl php - php

Question

I am fetching json data from api which allows me to hit 1 request per minute. Currently using multi curl but don't have idea how to execute curl after every 60sec so that i can get the 10 json file from 10 different url/api request in 10 minutes. Pls check the code and help me out.
function multi_thread_curl($urlArray, $optionArray, $nThreads)
{
//Group your urls into groups/threads.
$curlArray = array_chunk($urlArray, $nThreads, $preserve_keys = true);
//Iterate through each batch of urls.
$ch = 'ch_';
foreach ($curlArray as $threads) {
//Create your cURL resources.
foreach ($threads as $thread => $value) {
${$ch . $thread} = curl_init();
curl_setopt_array(${$ch . $thread}, $optionArray); //Set your main curl options.
curl_setopt(${$ch . $thread}, CURLOPT_URL, $value); //Set url.
}
//Create the multiple cURL handler.
$mh = curl_multi_init();
//Add the handles.
foreach ($threads as $thread => $value) {
curl_multi_add_handle($mh, ${$ch . $thread});
}
$active = null;
//execute the handles.
do {
$mrc = curl_multi_exec($mh, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
while ($active && $mrc == CURLM_OK) {
if (curl_multi_select($mh) != -1) {
do {
$mrc = curl_multi_exec($mh, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
}
}
//Get your data and close the handles.
foreach ($threads as $thread => $value) {
$results[$thread] = curl_multi_getcontent(${$ch . $thread});
curl_multi_remove_handle($mh, ${$ch . $thread});
}
//Close the multi handle exec.
curl_multi_close($mh);
}
return $results;
}
$optionArray = array(
CURLOPT_RETURNTRANSFER => TRUE,
CURLOPT_TIMEOUT => 20
);
$nThreads = 1;
$urlArray = array("url1", "url2","url3", "url10");
$results = multi_thread_curl($urlArray, $optionArray, $nThreads);

Answer 1

I would recommend using a cron job to schedule the call to the API for one url every minute, instead of a single script / function that is going to take 60s/url. You mentioned that you get the json response of 10 different urls, so that's 10 minutes for the script to be running, that's likely above the max_execution_time set by php.ini.
You could increase that by using set_time_limit, and just add a sleep(60) in your script, which will cause PHP to pause the script at that line for 60 seconds...