How can one ensure that data operations are completed before HTML output in PHP?

To ensure that data operations are completed before HTML output in PHP, you can use output buffering. This allows you to capture all output generated by PHP before sending it to the browser, giving you the ability to perform data operations first and then output the HTML. 

<?php
ob_start(); // Start output buffering

// Perform data operations here

// Output HTML content
echo "<html>";
echo "<head><title>Data Operations</title></head>";
echo "<body>";
echo "<h1>Data Operations Completed</h1>";
echo "</body>";
echo "</html>";

ob_end_flush(); // Flush the output buffer and send the content to the browser
?>

Keywords

synchronous programming PHP output buffering ob_flush ob_end_flush data consistency

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