What are the potential pitfalls of using the ob_start() function in PHP when including file content into a variable?

Potential pitfalls of using ob_start() function in PHP when including file content into a variable include increased memory usage if the output buffer is not cleared properly, leading to potential performance issues. To solve this, it is important to always call ob_end_clean() or ob_end_flush() after capturing the output to release the buffer. 

ob_start();
include 'file.php';
$content = ob_get_clean();

Keywords

ob_start PHP including file content variable

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