PHP - Quick Question About Variable Scope

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? 

Hi, im having a problem using a global object in all my scripts and programs. Its a register singleton so it have all the configuration values, etc...

Now im doing:

1-I create a script for testing, test.php
2-I include in that script 'errores.php', thats my error system library.
3-The error library include once 'registroglobal.php', thats my file for the global register.
4-Because i can use a lot of systems with a complete library or alone, i created a system where i test if the library module is part of a more greater library or not. If not, it instantiates the global register in errors.php (called in the include in test.php).
5-Here is the problem. Includes add and execute code, so, i must have all errors.php functions and the global register created.
6-If i test the global register in the test.php script, it goes well.
7-But if i call a function of my errores.php system, it says that my global register is undefined.

Well, thats all the explanation. Whats going on? How can i solve this?

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?   

$link	=	?><a href="post?id=<?php echo $id; ?>&title=<?php echo $slug_title; ?>"><?php echo $title; ?></a><?php

Basically what I am trying to do is get a url link of a current page that I'll be sending in an email. I have all the $_GET variables I need to duplicate the current url.  For some reason it's giving me an error.    Can you please fix what is shown above into something that'll work?   Thanks.
Edited by man5, 15 July 2014 - 07:09 PM.

Is there a way to only output the first, say, 30 words of a variable? I have a way to do it in mind, but seems like it's messy and not practical.

Any suggestions?

E.g:

WITHOUT LIMIT: Welcome to my store. Would you like to buy something? We have really good noodles and fishes in doodle pools.
WITH LIMIT: Welcome to my store. Would you like...

Sort of like a short preview.

Does storing multiple values in 1 database field with a varchar let's say set at 150, all separated by
"|'s" so I don't have to create a field name for each one is it better performance wise or no? (storing 6-7 different |'s that will be outputted with a array ofc)

?

hey! I have a site where I want to use multiple issets at the same time, like if I have four buttons and four issets:
if(isset($_POST['one']))
{
echo '<div class="example_box">one</div>';
}

if(isset($_POST['two']))
{
echo '<div class="example_box">two</div>';
}

if(isset($_POST['three']))
{
echo '<div class="example_box">three</div>';
}

if(isset($_POST['four']))
{
echo '<div class="example_box">four</div>';
}


but for some reason it seems like only one isset can be activate at a time, is there any way to work this out or something :s?

I've tried some variants of elseif stuff and such, but yeah, I'm pretty new at this stuff

hey guys

i have a script that creates a cookie named "MyLoginPage"

now everything works well
the cookie is saved and it keeps the user logged in

The Question
ok so im wanting to create a link that will delete the cookie
so when the user clicks the link it will delete the cookie

is this possible??
if so, how??

many thanks

how to open a site with curl that has frames ?

when ive tried it gives "your broswer does not support frames" ...

What is the difference between these two lines


Code: [Select]
!isset($_POST[$requiredField])
and

Code: [Select]
!$_POST[$requiredField]

hi.
when i get into some function manual and there is a note says.
Quote

This function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged.

.
is that meaning that after 5.3.0 version this function will not be supported?
thanks , Mor.

Hi, I've seen code like this multiple times, but I don't really know what it means.

function funcName(&$something) {
    // whatever
}

What exactly does the "&" do before the variable?

code

<?php
//storecodefound.php v1.0
//purpose is to store the http refer and the code associated with the site to a db to be collected and verified by submitcode.php
$code = $_GET['code'];
$site = $_SERVER['HTTP_HOST'];


//check to see if the code already present
$connect = mysql_connect("localhost","root","") or die (mysql_error());
$check = mysql_query("SELECT code FROM hunter.codes WHERE code='$code'") or die (mysql_error());
$row = mysql_num_rows($check);
echo "result of \$row is ".$row;
echo "<br />";
if ($row = 0) {
//insert into db cause it's not there
mysql_query("INSERT INTO hunter.codes (id, code, site)
VALUES ('','$code','$site')") or die (mysql_error());
}
else {
//echo it's already here
echo "Code already found on server!";
}





?>

my question is the result of $row is infact 0 and the if statement says if $row is 0 to insert into db and instead it's given me the code is already found?

I am starting to learn PDO by re-writing one of my existing scripts. Do I still need to validate $_GET or does PDO do the work for me?  Currently I am using:

Code: [Select]
$id = $_GET['id'];

$sth = $dbh->prepare('DELETE FROM van_reservations WHERE id = :id');
$sth->bindParam(':id', $id, PDO::PARAM_INT);
$sth->execute();

I used to validate by using this:

Code: [Select]
$id = isset($_GET['id']) && is_numeric($_GET['id'])?(int) $_GET['id']:0;

Hi guys,

I was wondering if we have table of seats in a cinema (which makes the quantity to 1) and two users are booking the same seat at the same time on our application. How can we prevent that?

I though if we create a session or even update that seat row and then if user doesn't finish the booking/or leave the browser on fora while in 10-15 minutes, that session still remains on. I'm sure we can expire that session how can we prevent both users have the same session and if one doesn't complete the purchase for any reason then how session can automatically update the database after that 15 minutes?

Thanks in advance.