Can I put timeout on PHP for()? - php

Question

I can't allow for file_get_contents to work more than 1 second, if it is not possible - I need to skip to next loop.
for ($i = 0; $i <=59; ++$i) {
$f=file_get_contents('http://example.com');
if(timeout<1 sec) - do something and loop next;
else skip file_get_contents(), do semething else, and loop next;
}
Is it possible to make a function like this?
Actually I'm using curl_multi and I can't fugure out how to set timeout on a WHOLE curl_multi request.

Answer 1

If you are working with http urls only you can do the following:
$ctx = stream_context_create(array(
'http' => array(
'timeout' => 1
)
));
for ($i = 0; $i <=59; $i++) {
file_get_contents("http://example.com/", 0, $ctx);
}
However, this is just the read timeout, meaning the time between two read operations (or the time before the first read operation). If the download rate is constant, there should not being such gaps in the download rate and the download can take even an hour.
If you want the whole download not take more than a second you can't use file_get_contents() anymore. I would encourage to use curl in this case. Like this:
// create curl resource
$ch = curl_init();
for($i=0; $i<59; $i++) {
// set url
curl_setopt($ch, CURLOPT_URL, "example.com");
// set timeout
curl_setopt($ch, CURLOPT_TIMEOUT, 1);
//return the transfer as a string
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
// $output contains the output string
$output = curl_exec($ch);
// close curl resource to free up system resources
curl_close($ch);
}

Answer 2

$ctx = stream_context_create(array(
'http' => array(
'timeout' => 1
)
)
);
file_get_contents("http://example.com/", 0, $ctx);
Source