Circuit breaker design pattern: Difference between revisions

Revision as of 13:29, 29 February 2024

Revision as of 15:23, 8 March 2024

Line 54:

===PHP===

The following is a sample implementation in PHP. The proof of concept stores the status of a MySQL server into a shared memory cache ([[AlternativeAPC PHPUser Cache|APC]]).

==== Check ====

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if ($mysqli->connect_error) {

apc_storeapcu_add("dbStatus", "down");

} else {

apc_storeapcu_add("dbStatus", "up");

$mysqli->close();

}

Line 74:

<syntaxhighlight lang="php">

if (apc_fetchapcu_fetch("dbStatus") === "down") {

echo "The database server is currently not available. Please try again in a minute.";

exit;