What's the use of ob_start() in php?

What's the use of ob_start() in php?

php output-buffering

php

What is output buffering?

php output-buffering

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Test PHP headers with PHPUnit

php unit-testing phpunit output-buffering

php

PHP buffer ob_flush() vs. flush()

php flush output-buffering

php

How to clear previously echoed items in PHP

php output echo output-buffering

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Difference between ob_clean and ob_flush?

php output-buffering

php

Difference between ob_get_clean and ob_get_flush

php output-buffering

php

PHP: Suppress output within a function?

php function output-buffering

php

Is using output buffering considered a bad practice? [closed]

php output-buffering

php

Get content between two strings PHP

php regex file-get-contents output-buffering

php

PHP output buffering - sounds like a bad idea, is it?

php performance output-buffering

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HTML into PHP Variable (HTML outside PHP code)

php output-buffering

php

How to flush data to browser but continue executing

php output-buffering

php

Calling ob_flush() and flush(), yet browser doesn't show any output until script finishes

php output-buffering

php

How to determine wether ob_start(); has been called already

php output-buffering

php