- MySQLi Tutorial
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MySQLi - Poll
Syntax
int mysqli_poll (array &$read , array &$error , array &$reject , int $sec [, int $usec ])
Definition and Usage
It used to poll connections.
Example
Try out following example −
<?php $servername = "localhost:3306"; $username = "root"; $password = ""; $dbname = "TUTORIALS"; $conn = new mysqli($servername, $username, $password, $dbname); if ($conn->connect_error) { die('Connect Error (' . mysqli_connect_errno() . ') '. mysqli_connect_error()); exit(); } if (!mysqli_query($conn, "SET a = 1")) { printf("Errorcode: %d\n", mysqli_error($conn)); } echo 'Success... ' . mysqli_get_host_info($conn) . "\n"; $conn->query("SELECT 'tutorials_auto'", MYSQLI_ASYNC); $arry_con = array($conn); $processed = 0; do { $links = $errors = $reject = array(); foreach ($arry_con 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($arry_con)); $conn->close(); ?>
The sample output of the above code should be like this −
Errorcode: 0 Success... localhost:3306 via TCP/IP Array ( [0] => tutorials_auto )
mysqli_useful_functions.htm
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