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Re: Sending nothing when function expects variable [message #178963 is a reply to message #178961]

Tue, 28 August 2012 07:21

Anders Wegge Keller
Messages: 30
Registered: May 2012

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Member

Jason C <jwcarlton(at)gmail(dot)com> writes:

> But then in the error log, I get these warnings:
>
> PHP Warning: Missing argument 2 for q()...
> PHP Warning: Missing argument 3 for q()...

> Does this mean that I need to go back through all of the scripts
> (dozens of them) and change all of the whatever() references to:

> whatever('this thing', false, false);

Not neccesarily. You can declare the function with default arguments:

function whatever($a, $b = "something", $c = "something else") {
...
}

If no arguments for b and c is passed, the function will get the
defaults instead. This replacement will not be visible inside the
function. If this is of importance, or the defaults are calculated
somehow, you'd be better off using NULL as default value:

function whatever($a, $b = NULL, $c = NULL) {

if (!isset($b)) {
/* Calculate default */
$b = <<some complex operation>>;
}

}

Example 3 and 4 in the manual page describe your case pretty well:

<http://php.net/manual/en/functions.arguments.php>

> or is there a way to set PHP to ignore this warning by default?

In theory you could use error_reporting(E_ERROR), but that would be
purely cosmetic.

--
/Wegge

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[Message index]

		Sending nothing when function expects variable By: jwcarlton on Tue, 28 August 2012 06:51
		Re: Sending nothing when function expects variable By: Goran on Tue, 28 August 2012 07:08
		Re: Sending nothing when function expects variable By: Scott Johnson on Tue, 28 August 2012 13:01
		Re: Sending nothing when function expects variable By: Anders Wegge Keller on Tue, 28 August 2012 07:21
		Re: Sending nothing when function expects variable By: alvaro.NOSPAMTHANX on Tue, 28 August 2012 07:55
		Re: Sending nothing when function expects variable By: Tim Streater on Tue, 28 August 2012 08:23

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