How does PHP interact with web servers and browsers in terms of controlling the timing of data output on the client side?

PHP can control the timing of data output on the client side by using functions like `ob_start()` and `ob_flush()`. These functions allow PHP to buffer output before sending it to the browser, giving developers more control over when data is actually sent. By buffering output, PHP can delay sending data until certain conditions are met, such as after processing is complete or when specific criteria are met. 

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

// Your PHP code here

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

Keywords

PHP web servers browsers data output client side

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