PHP ob_flush() Function: Everything You Need to Know

As a PHP developer, you may need to flush the output buffer to send data to the client immediately rather than waiting for the buffer to fill up. The ob_flush() function is a built-in function in PHP that allows you to flush the output buffer. In this article, we will take an in-depth look at the ob_flush() function and its usage.

What is the ob_flush() Function?

The ob_flush() function is a PHP built-in function that allows you to flush the output buffer.

How to Use the ob_flush() Function

Using the ob_flush() function is straightforward. Here is the syntax of the function:

ob_flush();

Here is an example of how to use the ob_flush() function to flush the output buffer:

<?php

echo "This will be buffered";
ob_flush();

In this example, we use the echo statement to output a message, and then use the ob_flush() function to flush the output buffer and send the message to the client immediately.

Conclusion

The ob_flush() function is a useful tool for flushing the output buffer in your PHP web application. By understanding the syntax and usage of the function, you can easily flush the output buffer to send data to the client immediately rather than waiting for the buffer to fill up. We hope this article has been informative and useful in understanding the ob_flush() function in PHP.