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PHP - Why Doesnt This Variable Become Global
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 Similar TutorialsSorry, 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 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 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 $var; now i can not access this variable in other pages even if declared global. Please some one tell me how to declare a variable once and can use in any page i want. I've coded an error variable thing to help with my login but it doesn't work and I am puzzled to why it does not. (>.<) error codes such as: Code: [Select] <?php /* checks to see if forms are filled in, if not, create a variable that will be used later. if forms are filled in than the variable is nothing and nothing will be echoed therefore passing onto the next if statement and repeating. */ if(!$_POST['username'] | !$_POST['pass']) { $errormessage_didnotfillinform = ('<center>You did not fill in a required field!</center>'); } else{ $errormessage_didnotfillinform = (''); } ?> Code: [Select] <html> <body> <!-- html such as the follow, goes here. --> <div align="center"><b>Log in</b> <form action="" method="post"> <table class="centered" border="0"> <tr><td>Username:</td><td> <input type="text" name="username" maxlength="40"> </td></tr> <tr><td>Password:</td><td> <input type="password" name="pass" maxlength="50"> </td></tr> <tr><td colspan="2" align="right"> <input type="submit" name="submit" value="Login"> </td></tr></table> </form></div> </body> </html> Code: [Select] <?php echo ( $errormessage_didnotfillinform ); if ( $errormessage_didnotfillinform ) == ('') { echo ( $errormessage_accountdoesnotexist ); } if ( $errormessage_accountdoesnotexist ) == ('') { echo ( $errormessage_invalidusernameorpassword ); } ?> This question may sound very lame... ... But I have never able to know how to define a variable that I can use in different functions in a same file. There is no class structure just a PHP file with some functions. Is it possible to use some type of variable that can be share by all functions and that variable should not be a session variable . Something like: <?php $my_global_var; function A() { // use $my_global_var here } function B() { // use $my_global_var here and should retain the last value } ?> Something like in VB6.... Thanks hello, ok if i set a Global on index.php (wwwroot/admin/index.php) it works Code: [Select] $page1='hello from page1 on index'; global $page1; echo $page1; i can echo $page1 on other pages like (wwwroot/admin/pages/home.php) and it will echo out "hello from page1 on index". GREAT but if i write a Global on (wwwroot/admin/pages/home.php) it does not work. i also can not echo it out on any other page Code: [Select] $page2='hello from page2 on home'; global $page2; echo $page2; why is this ??? It's a function=> Code: [Select] function _wp_call_all_hook($args) { global $wp_filter; //var_dump($wp_filter); //exit(); reset( $wp_filter['all'] ); do { foreach( (array) current($wp_filter['all']) as $the_ ) if ( !is_null($the_['function']) ) call_user_func_array($the_['function'], $args); } while ( next($wp_filter['all']) !== false ); } Why is $wp_filter variable declared as global ? Was $wp_filter assigned before ? I use $db object to handle database function like $db->get_row for example. Is there any way that I don't need to put into every function global $db or do I actually need to repeat in every function global $db? Code: [Select] function example(){ global $db //Do I need to repeat this in each function? } i have two classes and I am trying to call one class in through another here is my code but my welcome is not showing at all ever when i change the var's to 1 Code: [Select] class site { function DisplayContent ($page) { global $Users; echo '<div align="center"> <div id="Header"> <div id="NavBar">'; if ($Users->logged == 1) { echo 'Welcome '. $Users->user .' - <a href="?page=viewreminders">View Reminders</a> - <a href="?page=addreminder">Add Reminder</a> - <a href="logout.php" id="Logout">Logout</a>'; } else { echo '<a href="?page=login">Login</a> - <a href="?page=register">Register</a> - <a href="?page=forgotpassword">Forgot Password?</a>'; } echo '</div> </div> <div id="Content">'; $this->ShowPage($page); echo '</div> <div id="Footer">Copyright © '.date('Y').'<br /> Coded and Designed by Chris Cloyd</div> </div>'; } } class users { var $logged; var $user; var $email; var $level; function LogIn ($name,$email,$level) { $this->logged = 1; $this->user = $name; $this->email = $email; $this->level = $level; } function LogOut () { $this->logged = "0"; $this->user = ""; $this->email = ""; $this->level = ""; } } I have some variables that I have set with the global command but they don't seem to be working correctly. It's probably my order of operation but not sure. Here's the stripped down version of whats going on: locator() //functions function geoip() global $zip, $city, $areacode, $metrocode, $state, $country, $latitude, $longitude; function locator() geoip() use globals from geoip pass to- ad_display() function ad_display() does some work stat_tracking() function stat_tracking() access global $zip, $city, $areacode, $metrocode, $state, $country, $latitude, $longitude; The problem is once I call stat_tracking() and try to access the global variables, they are all empty. Just to clarify the chain of events is: page loads, calls locator(), locator() calls function geoip() fine then passes work to ad_display(), ad_display() calls stat_tracking(), stat_tracking() now tries to access the globals I made but all variables are blank if I echo them. Any ideas? Just wanted to know if $_Session was a global thing or does php require cookies setup?
I assumed that I could do something like this:
PAGE: A.php
session_start();
$_Session['Cat'] = 'Meow';
// -----------------------
PAGE: B.php
if (isset($_Session['Cat']) && !empty($_Session['Cat'])){
echo $_Session['Cat'];
}
OUTPUT: Meow
// -----------------------
PAGE: C.php
if (isset($_Session['Cat']) && !empty($_Session['Cat'])){
echo $_Session['Cat'];
}
OUTPUT: Meow
I can't seem to get this to work.
Page: Handler.inc
// ========================================================= Session Log in / out
public function logon($username, $password){
if ($username == "admin" && $password == "coffee"){
session_start();
$_SESSION['USER_STATUS'] = '1';
echo 'IN SESSION LOGIN HANDLER';
echo $_SESSION['UserLogged'];
}
}
public function logout(){
$_SESSION['USER_STATUS'] = '0';
echo 'IN SESSION LOGOUT HANDLER';
session_destroy();
//session_unset();
}
Page: index.php
if (!isset($_SESSION['USER_STATUS']) && empty($_SESSION['USER_STATUS']) || $_SESSION['USER_STATUS'] == 0){
if (isset($_POST['username']) && !empty($_POST['username']) && isset($_POST['password']) && !empty($_POST['password'])){
$username = $_POST['username'];
$password = $_POST['password'];
echo $handler->logon($username, $password);
}
<LOGIN FORM CODE>
}else{
if (isset($_SESSION['USER_STATUS']) && !empty($_SESSION['USER_STATUS']) || $_SESSION['USER_STATUS'] == 1){
echo 'Session name: '. $_SESSION['USER_STATUS'];
}
if (isset($_POST['btn_logout']) && !empty($_POST['btn_logout'])){
$handler->logout();
echo '<br />Logged out<br />';
}
<LOGOUT FORM BUTTON CODE>
}
Could someone point me in the right direction please. It does not seem to hold its session.
$errors=0; //NEW USER NAME HAS BEEN SUBMITTED, CHECK IT OUT AND THEN ADD IF OKAY $newuser=$_REQUEST['newuser']; function TryAgain(){ global $errors; $errors++; echo '<br/><br/>Please try again <a href="index.php?locate=admin&sub=add_admin">here</a>'; echo "<br/>errors=[$errors]"; } echo "<br/>Trying to add user: $newuser<br/><br/>"; if ($newuser){ }else{ // field was left blank, report this to user and give them option to try again echo '<br/>Field was left empty, you must pick a username.';TryAgain(); } if (strlen($newuser)<5){echo 'Username should be at least 5 characters.';TryAgain();} if (!$errors){echo "continue to SQL [errors=$errors]";} what is wrong with this code? For some reason if I increment $errors with $errors++ within the function it doesn't increment outside the function's scope. even though I declare it as a global at the start of the function. I know I'm doing something stupid here but can somebody please tell me what it is? Thanks Can someone tell me what some of the purposes of this would be? global $PHP_SELF; its defined right after a function like this function myFunction(module =' '){ global $PHP_SELF; .... } Thanks I need the following three variables to be available globally, that is to every page. (An common header.html uses them at every page). Please teach me how to initialize them. (inside the header.html maybe?) 'U_M_CODE' => append_sid("{$phpbb_root_path}faq.$phpEx", 'mode=bbcode'), 'U_M_TERMS' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=terms'), 'U_M_PRV' => append_sid("{$phpbb_root_path}ucp.$phpEx", 'mode=privacy'), Thank you. Hey, I've been developing a browsergame. In this you are able to produce something ("weed"). Now I've got some kind of trouble with the function that is responsible for updating the "weed" on the user accounts. Im going to explain, how my script is working First step: Loading the datas from "worlds". In this case id, weed_factor, weed_basis. What this is required for you will see in the next steps <?php include 'includes/settings/mysql.php'; mysql_connect($dbhost, $dbuser, $dbpass); mysql_select_db($dbbase); $time = time(); $update_weed_world_data_sql = "SELECT id, weed_factor, weed_basis FROM worlds"; $update_weed_world_data_res = mysql_query($update_weed_world_data_sql) OR DIE (mysql_error()); while($update_weed_world_data_while = mysql_fetch_assoc($update_weed_world_data_res)){ $update_weed_world_id = $update_weed_world_data_while['id']; $update_weed_world_basis[$update_weed_world_id] = $update_weed_world_data_while['weed_basis']; $update_weed_world_factor[$update_weed_world_id] = $update_weed_world_data_while['weed_factor']; global $update_weed_world_basis; } Second step: This is the function which is editing each account by the data given as parameters. function do_update_weed($profile_id,$world,$update,$level,$time){ $update_weed_period = $time - $update; $update_weed_add = ($update_weed_period / 3600 * $update_weed_world_basis[$world] * pow($update_weed_world_factor[$world],$level)) +1; echo $update_weed_world_basis[$world]; echo "<br>"; mysql_query("UPDATE profiles SET weed = weed +$update_weed_add, weed_update = $time WHERE id = $profile_id LIMIT 1"); } Note: echo $update_weed_world_basis[$world]; doesnt result an output. In step three, the accounts are loaded: function todo_update_weed($time){ $todo_update_weed_sql = "SELECT * FROM profiles WHERE weed_update < $time"; $todo_update_weed_res = mysql_query($todo_update_weed_sql) or die (mysql_error()); while($todo_update_weed_while = mysql_fetch_assoc($todo_update_weed_res)){ do_update_weed( $todo_update_weed_while['id'], $todo_update_weed_while['world_id'], $todo_update_weed_while['weed_update'], $todo_update_weed_while['level_farm'], $time ); } } And the last step is calling function "todo_update_weed" with the time. todo_update_weed($time); I script calculate the time between the last update and the current time. This make a difference in time. With this value I calculate something else. And then the update time has to be saved. The script has just working fine, when I set the variable "$update_weed_add" with a fix value. But by now the script doesn't work, because I don't know how to make the array available inside functions. I considered whether I put the database-function for the world_data inside the function that updates the profiles. But if I do this, the database will be called thousands of times... Hope anybody has a nice idea to fix the problem hello. I have some oop code that pulls information about a page out of a mysql db but i dont want to put the code on every page. Instead in want to put it in the a function and pass it back to each page. do i put it in a function in my functions.php file or can i put it into my includes/pages.php includes file ?? the code looks for the page name on the page and then pulls that pages info from the db. this code works on the page - home.php Code: [Select] <?PHP require_once("../includes/initialize.php"); $currentPages = Pages::find_all(); $pName = "adminHome"; $page_id = ""; $visible = ""; $pageZones = ""; $pageCRUD = ""; $pageTypes = ""; $module = ""; $title = ""; $sub_title = ""; $description = ""; $image = ""; $about = ""; foreach($currentPages as $currentPage){ $page_id = $currentPage->id; $pageName = $currentPage->pageName; $visible = $currentPage->visible; $pageZone = $currentPage->pageZones_id; $pageCRUD = $currentPage->pageCRUD_id; $pageType = $currentPage->pageTypes_id; $module = $currentPage->module_id; $title = $currentPage->title; $sub_title = $currentPage->sub_title; $description = $currentPage->description; $image = $currentPage->image; $about = $currentPage->about; if($pageName == $pName){ echo $pageName.'<br/>'; echo $page_id.'<br/>'; echo $visible.'<br/>'; echo $pageZone.'<br/>'; echo $pageCRUD.'<br/>'; echo $pageType.'<br/>'; echo $module.'<br/>'; echo $title.'<br/>'; echo $sub_title.'<br/>'; echo $description.'<br/>'; echo $image.'<br/>'; echo $about.'<br/>'; } } ?> i would like to be able to just put global $page or something like that to get all the db info for each page. i tried this in my includes/pages.php includes file but it cant get the page name. Code: [Select] public static function find_by_pageName(){ global $database; global $pName; $sql = "SELECT * FROM ".self::$table_name." WHERE pageName=".$pName.""; $result_array = self::find_by_sql($sql); return !empty($result_array) ? array_shift($result_array) : false; } any suggestions ???? whats the best way to do this ? thanks ricky |
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