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(PHP 5 >= 5.3.0, PHP 7, PHP 8)
mysqli::poll -- mysqli_poll — Poll connections
Об'єктно-орієнтований стиль
&$read,&$error,&$reject,$seconds,$microseconds = 0Процедурний стиль
&$read,&$error,&$reject,$seconds,$microseconds = 0Poll connections. The method can be used as static.
Зауваження:
Доступно тільки з mysqlnd.
readList of connections to check for outstanding results that can be read.
errorrejectsecondsMaximum number of seconds to wait, must be non-negative.
microsecondsMaximum number of microseconds to wait, must be non-negative.
Returns number of ready connections upon success, false otherwise.
A ValueError is thrown when neither
the read nor error arguments are passed.
| Версія | Опис |
|---|---|
| 8.3.0 |
Now throws a ValueError exception when neither
the read nor error arguments are passed.
|
Приклад #1 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());
if (is_object($result))
mysqli_free_result($result);
} else die(sprintf("MySQLi Error: %s", mysqli_error($link)));
$processed++;
}
} while ($processed < count($all_links));
?>Поданий вище приклад виведе:
Array
(
[0] => test
)
