note 50171 added to function.stream-set-timeout
| From: | ridera at osu1 dot php dot net | Date: | Sun, 20 Feb 2005 16:06:40 +0000 |
| Subject: | note 50171 added to function.stream-set-timeout | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-85284@lists.php.net to get a copy of this message | ||
I have been trying to understand how to use stream_set_timeout when calling a remote http page and
put together the following code snippets. The first one is a simple test file "test.php"
that is called as an html webpage.
The key I found is the "stream_set_blocking($fp, FALSE )". If "TRUE" [php
default], then $status['timed_out'] seems to not have any practical effect.
"FALSE" works.
Note, I have two timeouts, stream and monitor. I need both in my application.
<?php
echo $html_stuff\n; //the html header, etc.
ob_flush(); //makes it echo immediately
$delay= 20; //tweak this, seconds
$report = "<div>Test started at: " . date("H:i:s")</div>\n";
$report .= "<div>Started delay= $delay)</div>\n";
echo($report);
ob_flush();
$i=1;
$start_time= time();
while($i <= 10){
$diff= time()-$start_time;
$msg = $i . " at " . $diff;
echo "$msg<br>\n";
sleep($delay);
$i= $i+1;
} // end while
$report = "Finished\n";
$report .= " </body>\n</html>";
echo($report);
?>
The second code block calls test.php with the usual "fopen()"
<?php
$fp= fopen("http://URL/.../test.php",
'rb');
$query_timeout= 4; //tweek this
$monitor_time_sec= 120; //master timeout
stream_set_blocking($fp, FALSE ); //THIS IS IMPORTANT
stream_set_timeout($fp, $query_timeout);
$status = socket_get_status($fp);
// fetch data from test.php
while (!feof($fp) && !$status['timed_out']) {
$chunk = fread($fp, 10000);
$length = strlen($chunk);
$html_str .= $chunk;
$diff = time() - $start_time;
$tm = $status['timed_out'];
echo "<div>At $diff seconds >> $length bytes read, Status[timed out]:
($tm)</div>";
ob_flush();
if ($diff > $monitor_time_sec) {
$pq_array['monitor_timed_out'] = true;
break;
} //end if
sleep(2);
$status = socket_get_status($fp);
} //end while, fetching data
fclose($fp);
$pq_array['connection_timed_out'] = ($status['timed_out'])? true : false;
print_r($pq_array);
echo $html_str; //or whatever.
?>
----
Manual Page -- http://www.php.net/manual/en/function.stream-set-timeout.php
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