mysqli::poll, mysqli_poll

• mysqli::poll

  mysqli_poll

  Poll connections

Description

Object oriented stylepublic int mysqli::poll(array read,
array error,
array reject,
int sec,
int usec);

Procedural styleint mysqli_poll(array read,
array error,
array reject,
int sec,
int usec); Warning

This function is currently not documented; only its argument list is available.

Poll connections. Available only with mysqlnd.

Parameters

read

error

reject

sec

Number of seconds to wait, must be non-negative.

usec

Number of microseconds to wait, must be non-negative.

Return Values

Returns number of ready connections in success, FALSE otherwise.

Examples

Example 20.128. A mysqli_poll example

<?php
$link1 = mysqli_connect();
$link1->query('SELECT 'test'', MYSQLI_ASYNC);
$all_links = array($link1);
$processed = 0;
do {
 $links = $errors = $reject = array();
 foreach ($all_links as $link) {
 $links[] = $errors[] = $reject[] = $link;
 }
 if (!mysqli_poll($links, $errors, $reject, 1)) {
 continue;
 }
 foreach ($links as $link) {
 if ($result = $link->reap_async_query()) {
 print_r($result->fetch_row());
 mysqli_free_result($result);
 $processed++;
 }
 }
} while ($processed < count($all_links));
?>

The above example will output:

Array
(
 [0] => test
)

See Also

mysqli_query

mysqli_reap_async_query

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