Think of ob_start()
as saying “Start remembering everything that would normally be outputted, but don’t quite do anything with it yet.”
For example:
ob_start(); echo("Hello there!"); //would normally get printed to the screen/output to browser $output = ob_get_contents(); ob_end_clean();
There are two other functions you typically pair it with: ob_get_contents()
, which basically gives you whatever has been “saved” to the buffer since it was turned on with ob_start()
, and then ob_end_clean()
or ob_flush()
, which either stops saving things and discards whatever was saved, or stops saving and outputs it all at once, respectively.
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