Basic usage

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- Basic usage

## Basic usage

Example #1 Output Control example

    <?phpob_start();echo "Hello\n";setcookie("cookiename", "cookiedata");ob_end_flush();?>

In the above example, the output from echo would be stored in the output buffer until ob_end_flush() was called. In the mean time, the call to setcookie() successfully stored a cookie without causing an error. (Headers cannot normally be sent to the browser after data has already been sent.)