Are there any potential memory leaks or inefficient memory usage in the provided PHP script that could lead to the fatal error?

The issue in the provided PHP script is the failure to free the memory allocated for the $stmt variable after executing the query. This can lead to memory leaks and inefficient memory usage, potentially causing a fatal error if the script is run multiple times. To solve this issue, it is important to free the memory allocated for $stmt using the $stmt->close() method after executing the query. 

// Execute the query
$stmt->execute();

// Free the memory allocated for $stmt
$stmt->close();

Keywords

memory leaks inefficient memory usage PHP script fatal error error types

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