Can mysqli Prepared Statements Execute Multiple Queries Simultaneously?

Can mysqli Prepare Statements Execute Multiple Queries Simultaneously?

Unlike prepared statements, mysqli prepares one MySQL query at a time. To prepare multiple queries, create multiple prepared statement objects.

For example:

<code class="php">$stmtUser = $sql->prepare("INSERT INTO user (id_user, username, pw, email) VALUES (?,?,?,?)");
$stmtProc = $sql->prepare("INSERT INTO process (id_user, idp) VALUES (?,?);");</code>

Binding Parameters

Once you have prepared statements, you can bind parameters separately:

<code class="php">$stmtUser->bind_param("ssss", $id, $username, $pw, $email);
$stmtProc->bind_param("ss", $id, $idp);</code>

Executing and Closing Statements

Execute and close prepared statements individually:

<code class="php">$stmtUser->execute();
$stmtUser->close();
$stmtProc->execute();
$stmtProc->close(); </code>

Additional Tips

• Prepare statements in different variables to ensure proper handling.
• A "call to member function on a non-object" error typically indicates an error in the prepare() statement.

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