PHP - Global Variable Scope And Duration

i have a text box, the no of text boxes that are displayed are random depending upon the condition of the loop..
hosting[] takes up many no of values
<input type='text' name='hosting[]' size='2' /> when the form is submitted
i use the following code to access the content of hosting[]

$link_no = $_POST['hosting'];
$total_actual_links = null;
foreach($link_no as $total_link)
{
$total_actual_links[] = $total_link;

}

now i get the results in $total_actual_links[].. i want to pass the value of this array into the value of another text box of other form which i get on submission of the 1st form..
i do not knw how shud i do this.. please help
            

I am using a MVC framework and in my controller I have defined a class variable for configurations.  In my action I have a call to the configuration class to set the class variable to the current configurations.

Code: [Select]
public $configArray = array();

public function actionBuild($id)
{
$this->configArray=Config::model()->getConfigArray($id);

$this->buildStep1();
...
}




When I echo the configuration in the method it is 10 but when I echo in buildStep1 it is 11.  What is the proper way for configArray to be global and updated when I call getConfigArray for use in functions in the class? 

I'm having a complete brainfart right now and can't seem to remember this.  Tried looking it up in the manual, but couldn't find an example.  Here's what I have:


class myclass {

    function testA {
        

    }

    function testB {

    }
}



So that's my basic setup.  I want to define a variable.  I then want to set it's value in testA().  I then want to be able to access the value in testB().  Where and how do I define this variable?

I thought all I had to do was something like:


class myclass {

    public $tempvar='';
    
    function testA {
        $tempvar="my new value";

    }

    function testB {
        echo $tempvar;

    }
}


But this says that $tempvar is equal to NULL.  What am I forgetting?  Thanks in advance!

This is more of a technical question that i could not find the answer to pn the php.net manual pages.

take the folowing example code:



foreach ($array as $key => $value){

$tempvariable = some_property_of($value);

}

unset($tempvariable);


is that unset statement needed?  Does PHP automatically destroy the variables once the foreach loop is left?

I'm having a problem with (what I'm almost certain is) variable scope, maybe you can help...

So I've got a parent class that, among other things, gets the name of the filepath, explodes this filepath, checks for files with names that mirror that filepath (without the slashes of course), and includes them if they exist:



class ParentClass {

  public $RootFolder;
  public $PageSections;

  function __construct() {
global $root_folder;
$this->RootFolder = $root_folder;
//get all directory names...
$cleanse = $this->RootFolder;
$pagepath = str_replace($cleanse, '', dirname($_SERVER['PHP_SELF']));
$this->PageSections = explode('/', $pagepath);
  }

  function RequireIfExists ($sections, $root_folder, $file_name, $file_type) {
foreach ($sections as $i){
if (isset($o)) {
$i = $o."/".$i;
}
$file = $root_folder.$i."/".$file_name.$file_type;
if (file_exists($_SERVER['DOCUMENT_ROOT'].$file)) {
require ($_SERVER['DOCUMENT_ROOT'].$file);
echo "<!--".$file." included -->"; //temporary measure to ensure that the file is at least being called.
}
$o = $i;
}
  }
// so, excuting the function
// $this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php");
// on some/sub/folder/index.php
// will look for somesectionvars.php, somesubsecitonvars.php & somesubfoldersectionvars.php
// and include whichever ones exist.
}

Then there is a child class that utilizes this function, and successfully requires the file. I know the file is coming through because the echo statement on the page shows up in the code, but I cannot get the variables to pass through?


<?php
class HtmlHead extends PageBlock{
public $PageKeywords;
public $PageDescription;
public $PageStyles;
public $PageScripts;
//------------------------
public $SectionKeywords;
public $SectionDescription;
//------------------------
public $SiteKeywords;
public $SiteDescription;
public $SiteStyles;
public $SiteScripts;
//------------------------
public $CatchAll;

  function __construct() {
parent::__construct();
//$this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php");  //I have tried calling the function here with no luck
global $site_description, $site_keywords, $section_description, $section_keywords, $xyz; //also made sure to global the variables from the required page
$this->SiteDescription = $site_description;
$this->SiteKeywords = $site_keywords;
$this->SectionDescription = $section_description;
$this->SectionKeywords = $section_keywords;
$this->PageDescription = $page_description;
$this->PageKeywords = $page_keywords;
  }

function Constructor() {
$this->RequireIfExists($this->PageSections, $this->RootFolder, "sectionvars", ".php"); //Tried calling the function here as well, no luck
global $xyz; //global'd the var i want
echo "\n<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />";
echo "\n<!--Sec Keywords are".$xyz."-->"; //Tried to echo the var...
//------------------------Rest of code...
}
}


And here is the page that is being required...


<?php
echo "<!-- 1234 1234 1234 1234 -->"; //test measure to see if/where file is including
$section_keywords = "red, secondary";
$section_description = "this is the red section description";
$xyz = "1234"; //test Var to see if there was a naming conflict with the above two..
?>


What am I overlooking this time?   

ok iv set up a simple demo

this is the code im running

include('simple_html_dom.php');
include('config.php');
include('connect.php');
include('functions.php');
include($_SERVER['DOCUMENT_ROOT'] . DIRECTORY_SEPARATOR . 'globalFunctions.php');

test();

echo "test variable = ".$test;

exit;

this is the function which is in globalFunctions.php which is two directories back ../../

function test() {
$test = 10;

global $test;
}

how come when i run script i am not getting variable echoed

Sorry, this will be a simple question.  Say you define two global variables in your functions.php file as:
GLOBAL  $salesTax = .07;
GLOBAL $shipping = 5.00;

Those variables would be accessiible in the checkout.php page, right? 

Hi All,
For the last post,I m very happy that i found out so many great mind who are watching my problem and solving online.
anyway great thanks for all,
just now i m making a project and i m facing problem in the below code
"i need to know how can make this code easy or how can i make rdata variable accessible for the download button"
generatecv.php file
<?php
if(isset($_REQUEST['submit']))
{
$name=$_REQUEST['pname'];
$pin=$_REQUEST['pin'];
$mnumb=$_REQUEST['mnumber'];
$tnumb=$_REQUEST['telenumber'];
$email=$_REQUEST['email'];
$obj=$_REQUEST['obj'];
$title=$_REQUEST['jobt'];
$activity=$_REQUEST['activity'];
//$file=fopen('test.doc','a+');
//echo @fwrite($file,$name);
//fclose($file);
$rdata="";
$rdata.="<table id='cvtbl' border='0' align='center' >
<th>Resume</th>
<tr><td>".$name.":</td></tr><tr><td>Objective:</td></tr>";
$rdata.="<tr><td>".$obj."</td></tr>";
$rdata.="<tr><td>Email:".$email."</td></tr>";
$rdata.="</table>";
echo $rdata;

echo "<style>#cv{display:none;}</style>";
echo "<form><input type='submit' name='dwnld' id='dwnld' value='Download'/></form>";
}
if(isset($_REQUEST['dwnld']))
{
header("Content-type:application/msword");
header("Content-disposition:attachment;filename=test.doc");
$fp=fopen("test.doc","r") or die("try again");
$data=fread($fp,filesize('test.doc'));
fwrite($fp,$rdata);
echo $data;
fclose($fp);
//echo $rdata."<br />".$rdata;
}
?>

this is the html file

<html>
<title>User details</title>
<body>
<form name='cv' id='cv' method="post" enctype="multipart/form-data" action='generatecv.php'>
    Enter your name<input type=text name=pname id=pname />
    Zip Code<input type=text name=pin id=pin />
    Mobile number<input type=text name=mnumber id=mnumber />
    <br />Telephone number <input type=text name=telenumber id=telenumber />
    Email address<input type=text name=email id=email />
    <br />Enter your objective<br /><textarea name=obj id=obj cols=30 rows=5 ></textarea>
<!--University Name <input type=text name=university id=university /> -->
    <br /><!--uni, city ,state ,type of degree ,full degree name,date-->
    <br /><!--Experience<br /><textarea name=exp id=exp cols=30 rows=5 ></textarea> -->
   Select type of resume
   <select name='type' id='type' onChange=''>
   <option value='0'>Graduate</option>
   <option value='1'>Post Graduate</option>
   <option value='2'>Non Graguate</option>
   <option value='3'>Other</option>
   </select>
    Job title<input type='text' name='jobt' id='jobt' />
    <br /><!--company name,city ,state ,office number ,job description ,date of employment-->
    <br />Activity <input type=text name=activity id=activity size=100 />
    <br />Honors/Awards<input type=text name=honor id=honor size=100 />
   <input type='submit' name='submit' id='submit' value='Generate CV' />
   <input type='reset' name='Reset' id='submit' value='Reset' />
   
</form>
</body>
</html>

Many thanks in advance

I run these functions to find the key of a given element inside an array.  Like so;

$ban_ip_file = file("ip_file.txt");
foreach($ban_ip_file as $key => $value)
{
$value = trim($value);
if($value == $ip_from_form)// passed to page by a form
$set = $key;
}

How do I make $set available for testing and file writing further down the script?

Tried assigning global $set; just above the $set=$key; ----but it did not work.

I declared a variable in a page. When i want to access that variable in other page i am bound to state as global such as
global $var;

now i can not access this variable in other pages even if declared global. Please some one tell me how to declare a variable once and can use in any page i want.

Hi guys, I'm new to this forum and hope this is the right place to post this question. I run an internet radio station using SAM Broadcaster. I am trying to display the duration of the song on my main page without the front zero (see enclosed picture): I want the duration to display like this: example (5:47) instead of with the front zero (05:47) Here is a snipet of the code I think it needs to be changed in here somewhe     <td><?php echo preg_replace("/[^!<>@&\/\sA-Za-z0-9_]/","", $row['title']); ?><br><a href="javascript:void(0);" class="album"><strong><?php echo preg_replace("/[^!<>@&\/\sA-Za-z0-9_]/","", $row['artist']); ?></strong></a> (<?php echo date('i:s',$row['duration'] / 1000); echo $duration[0] === '0' ? substr($duration, 1) : $duration; ?>)<div class="albuminfo">

Hello........

Currently i am struggling with php script....... can any one tell me or guide me how to code Automatically generating random number with in the range of 19 to 90 and the number has to change with in 24 hours time duration.........
It's urgent........

Thanks in advance.....
Rooban.S

Other than if statement, is there a way to change a duration give in seconds (e.g. 5746 seconds) to the standard format of x hours and y minutes and z seconds?

Hi Guys   I have a question about maintaining scope in OOP.  I may just be going about it in completely the wrong way but I'm here to learn.   Lets say I have a base class called 'first; set out as per the code below.    In the first class there is a method that instantiates another class - called second. This second class extends the first class and I want it to be able to set errors on the first class.  The only way I can maintain it's scope is to pass $this into the constructor of the second class.   My questions a   1) Is this the right way to maintain scope? 2) Would this be bad practice and I should explore a different model for setting out these classes? 3) Would it be considered better practice to make $errors a static property?     Keen to do things the right way so any advice is very welcome

class first {

	public $errors = array();
	
	public function __construct(){
		
		$this->callSecondClass();
		$this->render();
		
	}
	
	public function callSecondClass(){
		
		$t = new second($this);
		
	}

	public function render(){
	
		echo "I am rendering errors:";
		print_r($this->errors);
	}

}

class second extends first {

	
	public function __construct($obj){
			
		$obj->errors[] = 'ERROR FROM SECOND CLASS';
	}

}
 

Edited by Drongo_III, 14 August 2014 - 04:54 PM.