PHP functions that has direct output to browser

Question

Some functions in PHP (for ex. phpinfo, var_dump, print_r) has a direct output to browser and to store its result to a variable we need to use ob_* functions.

I cited the example of three these functions. Do you know any more? Is there a list of these functions? Thank you.

@Anton The final answer will also depend on the set of extensions you've installed — hek2mgl
– hek2mgl, Commented Mar 28, 2014 at 19:01
@hek2mgl de2.php.net/manual/en/function.echo.php its also rendered as a function. — dognose
– dognose, Commented Mar 28, 2014 at 19:02

LartTyler · Accepted Answer · 2014-03-28 19:01:25Z

2

Off the top of my head, I know that PHP's printf function will also echo it's output instead of returning data. But to my knowledge, there's no list out there of all PHP functions that echo information rather than returning it.

A bit of a sidenote though, print_r actually has a boolean optional second parameter that allows you to control whether or not it echos it's output, or returns it.

answered Mar 28, 2014 at 19:01

LartTyler

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dognose Over a year ago

and obviously phpinfo(), imagepng(), imagejpg() and so much more :)

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