PHP：我可以抑制函数的输出吗？

Question

So I know you can use output buffer. The problem right now is, I am using a function in a Wordpress plugin and it is automatically and it automatically outputs the return. However, I want to check the return to see if it is false or returning my data.

I have tried:

if( function_name() ) {

}

$name = function_name();

I can still see the output in those situations, which I why I wanted to suppress it and do some checks first. I don't want to edit the core function of the plugin, but I will as a last resort. Is there a better work around?

Answer 1

Yes. It can be done like this:

ob_start();
if (function_name()) { }
else {}

// then you can do one of the following
ob_end_clean(); // in case you want to suppress function_name output
ob_flush(); // in case you don't want to suppress function_name output

Have a look here for more information about output control functions.

Also, instead of using ob_flush and ob_end_clean you could use ob_get_clean.