PHP - Storing A Variable From A Function

Hi there,

I am working on a PHP web form and I have a very simple situation I guess, I have a variable named: $MyVal

When I do

print_r($MyVal);
To see whats inside, I get:

SimpleXMLElement Object ( [0] => 8.23 )
Now I am assigning this variable into a session variable so that I can do calculations with it.

So I assign:

$_SESSION['MySesVal'] = $MyVal;
But after assigning to session variable, when I do my calculations:

$finalValue = $_SESSION['MySesVal'] * 4;

I get 0. So is it because the actual $MyVal variable has some XML stuff as:

SimpleXMLElement Object ( [0] => 8.23 )

So what is the right way to properly assign $MyVal variable to a session variable to do calculations.

Please reply.

All comments and feedbacks are always welcome.

Thank you!

I have a submit.php file that includes the following jQuery code:

<script> [...] request.done(function( json ) { jQuery('input[name=thumbnail-url]').val(json.thumbnail_url); jQuery('input[name=job_title]').val(json.title); jQuery('textarea[name=htmlcode]').val(json.html); [...] </script>

I need to remove

jQuery('textarea[name=htmlcode]').val(json.html);

and pass the "json.html" value into a PHP variable in another php file (functions.php).

The code in the functions.php file is already there.

The thing i need to do (and i am seriously struggling with it) is placing the value of json.html into a $phpvariable that i can then call from the function.php file.

Do you need any more info for this issue?

Thanks.

Hello all, I have some piece of code that is nested like this


$variable = 'This is a global argument';
function parentFunction($variable) {
function childFunction() {
echo 'Argument of the parent function is '.$GLOBALS['variable'];
}
childFunction();
}
parentFunction(5);


What I want to know is - Is there a way to access a variable from the parent function without passing arguments to the child function? (Something like how classes have parent::?). I don't want to use $GLOBALS because it might cause some variable collision, and I didn't want to pass arguments because incase I decide to change the arguments in the parent function I'd have to do it in the child function aswell. From my searching around in the Internet it seems like this is not possible, but if theres a slight chance that there might be something out there, i'm willing to give it a shot .

Thanks in advance

I want to define a function instead of repeating query in all my php pages. I call a function by passing an $id value and from that function i have to get all the info related to that id, like name, description and uom.    I am trying to do this, but i dont know how to get these values seperately.   here is my function  

function items($item_id)
{
$details = array(); 
$result = mysql_query("select item_id, name, uom, description from items where item_id=".$item_id."") or die (mysql_error());
while($row = mysql_fetch_array($result))
{
$details[] = array((stripslashes($row['name'])), (stripslashes($row['uom'])), (stripslashes($row['description'])));
}
return $details;
}

and i call my function like this

$info = items($id);

Can somebody guide me in this    

I have a function that get's a quick single item from a query:

function gimme($sql) { 
global $mysqli; 
global $mytable; 
global $sid; 
$query = "SELECT ".$sql." FROM ".$mytable." WHERE sid = ".$sid; $result = $mysqli->query($query); 
$value = $result->fetch_array(MYSQLI_NUM); 
$$sql = is_array($value) ? $value[0] : ""; 
return $$sql; // this is what I've tried so far 
$result->close(); 
}

It works great as:

echo(gimme("name"));

Then I realized that I could use that as a variable ('$name' in this case) elsewhere. However, I can't figure out how get that new, variable variable 'outside' of the function.  As such,

echo($name);

isn't working outside the function.  Is there a way to return a variable variable?  In other words, is there a way to make a function that creates a variable variable that will available outside of the function?

 

Thanks

 

I am using two diffrent databases in my php system, MySQL and MSSQL. my issue is i need a list of results from a MySQL query to be part of a Where clause in the MSSQL query. I cant put the the MSSQL query in the while section of the MySQL query as i need to sort by the results of the MSSQL query. if i do the MySQL query and then use  the info from that in the MSSQL query I get only one result. so i decided to make it a function. how ever i need to know how to  make the function into a variable so i can input it in the MSSQL query. Hope this all makes senes. heres what i have that is not working .

function somefunction($vaiable) {
$gers = mysql_query(sprintf("SELECT emp_id, lastname FROM info WHERE active='1' AND oid='$oid' AND pidnumber='4'")) or die(mysql_error());
while ($gerow = mysql_fetch_array($gers)) {
echo "ci.attorney='$lastnamey' OR ";

 }
}

$attlist = getattorney($vaiable);
echo $attlist;

$rscw=odbc_exec($conn, sprintf("SELECT ci.attorney, SUM(ci.totalweight) AS 'citw' FROM info ci, clients cl WHERE ci.ID = cl.ID AND (cl.county = '$xca' OR cl.county ='$xcb' OR cl.county ='$xcc' OR cl.county ='$xcd') AND ($attlist ci.attorney='xyz') GROUP BY ci.attorney ORDER BY citw DESC")) or die (odbc_errormsg());

while (odbc_fetch_row($rscw))
{

echo odbc_result($rscw,"attorney");
echo odbc_result($rscw,"citw");
}


is there a way to make a function be defined as a variable?

Any help is appreciated

i want to use a variable that is created inside of a function in another function
some thing like this

function show_category ($cats, $index, $level)
{
global $categories_use_categories_top_only;
$categories_use_categories_top_only='no';
.
.
$catRow = '<tr class="scPL-' . $level . '">' . "\n" . '<th colspan="' . PL_COLCOUNT . '">' . $cats[$index]['categories_name'].'<br><i>'. $categories_use_categories_top_only . '</i><br><i>'. $cat_top . '</i></th>' . "\n" . '</tr>' . "\n";
    return $catRow;
}
function show_product ($cats, $cat_index, $prod_index)
{
global $categories_use_categories_top_only;
.
.
  if ($categories_use_categories_top_only=='no' )  { 
     include(DIR_WS_MODULES . 'options.php');
}
.
.


i want to use $categories_use_categories_top_only which its value determined in the first function in the second function as i showed. the first function acts correctly
how can i do this?

Hello

I have a question (that i think i know the answer to).

What would be more efficient:

1. Create a global variable and run a php function and store result in there and call back the variable when needed

2. just echo the return value of the function when needed

Now im guessing that calling the function once and storing that in a variable rather than keep calling the function is more efficient

Hi,

I'm having an image upload function I did create for few weeks ago - it has an variable called $newname, which contains the path and file.

I'm then using the imageupload() function in another function called EditFrontPage(), which is used to 'update' some content.

If I update the image, it runs the imageupload function, which is great, it resize and optimize the image, and it moves it to the folder I specified.

What I then want, is within' my EditFrontPage() function, is to echo out the $newname variable from the imageUpload function.

is there a way to do this? in a smart way?

If my code is needed, you can take a look at it he http://codepad.org/poKNSU5H

Thank you a lot guys!

Code: [Select]
class replayer extends users {
--SNIP--
public $islive = false;
--SNIP--
     function chat($id, $nick, $chat) {
          --SNIP--
          <-----------
     }
}
There's my code, I want to take the variable $islive from the above class and use it in the chat() function.

How would I do it? I've tried making it a global inside of the chat() function.

Hello,

I have been trying to replace a variable's value inside a function in case it matches a certain criteria but I can't seem to get it right.

Let me give an example:

Code: [Select]
<?php

function replace_value($obj)
{
if($obj==1)
{
$obj=2;
}
}

$number = 1;
replace_value($number);

echo $number;
So how do I go about making $number = 2, because it still has a value of 1 even after I pas it through the function replace_value.

I dont know why I'm having so many problems with this. I need to get a variable that defined in an included file inside of a function I've got this

Inside file.php I've got the $variable1 and $variable2 defined (they're dynamic/different to each user)

include('file.php');

function foo() {
GLOBAL $variable1, $variable2;

echo $variable1;
echo $variable2;
}

foo();

Yet it outputs nothing?

If I Include file.php right inside of the function it works however. Any idea?

Hi All,

I have a function that i want to pass a variable into so that i can do some SQL on it.

The information that i want to pass into it is a data-id on a button that is used to trigger the function.

The button that will be clicked is this

<div class='modaltrigger btn btn-primary' data-id='$itemId' data-toggle='modal'>Manage</div>

This button is being created by another function.

I would like to know either how i pass the variable from one function to another or how i pass it from the data-id to the function in php.

Thanks in advance.

I have just started using functions, and have been following a few tutorials. I think im misunderstanding returns.

lets say i have the variables called $math1 an $math2

and i want to make $total = $math1 + $math2;

i then use return $total;

I then thought i could echo $total and it would work outside of the function but its giving me an error of an underfines variable.

Could anyone explain what im doing wrong please? thanks

Hi,

Im trying to pass a variable ($in_this_instance) into, and then back out of a function.  The variable goes into the function no problem, and is echo'ed out fine.  However the echo after the close of the function, does not give anything out. 

Code: [Select]
$in_this_instance = 'boo';

function in_this_instance($data) {
global $in_this_instance;

echo $in_this_instance;

$in_this_instance = 'hoo';


$rep_val = '[front banner]';

    $test = strpos($data, $rep_val);
    if ($test === false) {
return $data;
    } else {
    return $data;;
    }
}

add_filter('the_content', 'in_this_instance');
echo $in_this_instance;

Could any one give me a pointer please?  Many Thanks!