本文整理匯總了PHP中newznab\db\Settings::beginTransaction方法的典型用法代碼示例。如果您正苦於以下問題：PHP Settings::beginTransaction方法的具體用法？PHP Settings::beginTransaction怎麽用？PHP Settings::beginTransaction使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類newznab\db\Settings的用法示例。
在下文中一共展示了Settings::beginTransaction方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的PHP代碼示例。
示例1: Settings
<?php
use newznab\db\Settings;
try {
// Create the first database class instance (which will initialize the PDO connection)
$db = new Settings();
// For debug set the error mode
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
// Start the transaction
if ($db->beginTransaction()) {
// Loop 20 times
for ($i = 1; $i <= 20; $i++) {
// Header
echo "--[ Insert run: {$i} ]----------------------------------------" . PHP_EOL;
// Create a new db class instance (multiple can exist)
$newDb = new Settings();
// Check that there is a new db class instance, but no new PDO instance
var_dump($newDb, $newDb->getPDO());
// Insert some data
$sql = sprintf("\n INSERT INTO `testdata`\n (`id` ,`field1` ,`field2` ,`field3` ,`field4`)\n VALUES\n ('%s', '%s', '%s', '%s', '%s')", $i, $i, $i, $i, $i);
$newDb->exec($sql);
// Check for inserted data
var_dump($newDb->query(sprintf("SELECT * FROM `testdata` WHERE id = %d", $i)));
}
// Now rollback using the last db class instance
var_dump($newDb->rollback());
}
} catch (PDOException $e) {
var_dump($e);
}