Get function arguments values PHP

Question

I have a function with 5 arguments and default site width variable

$site_width ='1000px';
function MyPrintFunction ($divName,$width=false,$html1='',$html2='', $echo = true ){
      ... plenty of code above, no need to post complete function

        $html = '<div id="'.$divName.'">';
        $html .= '</div>';
        if( $echo ){
          echo $html1.$html.$html2;
        }else{
          return $html1.$html.$html2;
        }


}

and than I print html like:

MyPrintFunction ('divname1',true);
MyPrintFunction ('divname2');
MyPrintFunction ('divname3');

I need to check if any of these functions has set the second argument to true, and if yes , I need first argument name.

This way I can add the argument name to css snippet ( will be injected in head later ) and set width for it

#ARrument1NameSHouldGoHereAsVariable{
   width:$site_width;
}

I hope I explained this right. Sorry if I did not. Any help is appreciated. Thank you!

If you're creating the div there, why not just put the width as the div's style? It seems like that would be easier. — G-Nugget
– G-Nugget, Commented Nov 10, 2012 at 4:02
@G-Nugget lol , you got me , I already have it in the function like that , and want to take it out of inline and put it where it belongs , <head> — Benn
– Benn, Commented Nov 10, 2012 at 4:05
@L0j1k check my posts first before complaining , see how many answers I got to accept — Benn
– Benn, Commented Nov 10, 2012 at 4:06
Please clarify I need to check if any of these functions has set the second argument to true, and if yes , I need first argument name. It sounds like you just want to knoe the first argument, which you can't not know. — G-Nugget
– G-Nugget, Commented Nov 10, 2012 at 4:07

Jared Drake · Accepted Answer · 2012-11-10 05:08:43Z

1

Noo no no, you absolutely can have optional arguments. It's a bit messy of a situation, but totally possible.

echo MyPrintFunction('dafsd',435);
function MyPrintFunction ($divName,$width=2342){
    return $divName . $width;
}

The reason it is discouraged is because... Let's suppose you want to set a height, but not a width to 435

echo MyPrintFunction('dafsd',435);
function MyPrintFunction ($divName,$width=2222, $height=1111){
    return $divName . $width . $height;
}

Optional arguments should generally not be used, and if they are to place them at the end in an array

Please oh please let this be what you are seeking...

function MyPrintFunction ($divName,$width=false){
    $newObj = array();
    $newObj['divName'] = $divName;
    $newObj['width'] = $width;
    return $newObj;
}
function hasWidth($newObj) {
    if ($newObj['width']) {
        return $newObj['width'];
    }
    else {
        return 'no width!'; 
    }
}
$tempStore1 = MyPrintFunction('dafsd',123);
$tempStore2 = MyPrintFunction('dafsd');
echo hasWidth($tempStore1);
echo hasWidth($tempStore2);

edited Nov 10, 2012 at 5:08

answered Nov 10, 2012 at 4:36

Jared Drake

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8 Comments

Benn Over a year ago

well that is what I have but again , can someone help me if it is all possible to find out what the first and second arguments are outside the function ?

Benn Over a year ago

I did not post the complete function and yes I check for all arguments defined before prints , the complete function is much bigger than example above , but my question is not how my function is formulated

Jared Drake Over a year ago

Are you looking for something like php.net/manual/en/function.func-get-args.php

Benn Over a year ago

no jared , the user has option to add or NOT add the width to the div within the function , if he does , I need to find out what div name is in question so I cann add it to css that will be placed in the head . right now I have widths defined as inline style and I want to remove the from there and placed them inside the head . hope this makes sense

Jared Drake Over a year ago

lol I wish it did make sense. Next suggestion! You could just return an object and then outside the function check if the width property of the returned object is true?

|

Mr. Alien · Accepted Answer · 2012-11-10 04:01:59Z

1

What's this for?

function MyPrintFunction ($divName,$width=false,$html1='',$html2='', $echo = true ){

The logic goes like this

<?php
function blahblah($param1, $param2) {
//Put some weirdy stuff here

if($param2 == '1') {
 //Than it's true
  } else {
 //false
  }
}
blahblah("div1", "1"); //This is true
blahblah("div1", "0"); //This is false
?>

answered Nov 10, 2012 at 4:01

Mr. Alien

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7 Comments

Benn Over a year ago

it is for all possible options, html before or after the main div name etc

Benn Over a year ago

well will do but kinda still does not gives me a clue to my question. how to get the function argument values outside of it

Benn Over a year ago

and if I use it the way you do I am forced to call all function arguments when printing , otherwise will have missing arguments 2 3 etc

Mr. Alien Over a year ago

no you cannot have missing arguments, check this out php.net/manual/en/function.func-get-args.php and this too php.net/manual/en/functions.arguments.php

Benn Over a year ago

the answer has nothing to do with the question , I did not ask how to formulate the function

|

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