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PHP - Class Declared, But Not Seen
Hi,
Basically I am going to give a short description to my problem with pseduo and comments (-->), there is too much to paste all my code he basically include(config.php) --> database connection include(global.php) --> class is instantiated here as $p ($p is GLOBAL) --> I print_r the $p value here, and it shows (debugging) switch() case x: include file.php; break; --> but when I try to access it or print_r it here (here being within the file.php), via the file that has been included above "include file.php", it does not see it. I have to re-declare the $p variable with the class, within the included file. any tips as how to solve this please; I dont see why it wouldnt see it, since all the file is that I am including is an HTML file with a few PHP lines, which checks if a user has permission: if(!$p->check()) redirect("index.php"); Similar TutorialsGooday Coders. Im using php 5.4 with xampp 1.8. Each time I run this script "add+stock.php", the script jumps to line 240 saying header is already defined. Thus referring to the session headers. What can I do to get rid of these header errors?
add_stock.php
<?php
include_once("init.php");
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>NIC - Add Stock Category</title>
<!-- Stylesheets -->
<link href='http://fonts.googleapis.com/css?family=Droid+Sans:400,700' rel='stylesheet'>
<link rel="stylesheet" href="css/style.css">
<link rel="stylesheet" href="js/date_pic/date_input.css">
<link rel="stylesheet" href="lib/auto/css/jquery.autocomplete.css">
<!-- Optimize for mobile devices -->
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
<!-- jQuery & JS files -->
<?php include_once("tpl/common_js.php"); ?>
<script src="js/script.js"></script>
<script src="js/date_pic/jquery.date_input.js"></script>
<script src="lib/auto/js/jquery.autocomplete.js "></script>
<script>
/*$.validator.setDefaults({
submitHandler: function() { alert("submitted!"); }
});*/
$(document).ready(function() {
$("#supplier").autocomplete("supplier1.php", {
width: 160,
autoFill: true,
selectFirst: true
});
$("#category").autocomplete("category.php", {
width: 160,
autoFill: true,
selectFirst: true
});
// validate signup form on keyup and submit
$("#form1").validate({
rules: {
name: {
required: true,
minlength: 3,
maxlength: 200
},
stockid: {
required: true,
minlength: 3,
maxlength: 200
},
cost: {
required: true,
},
sell: {
required: true,
}
},
messages: {
name: {
required: "Please Enter Stock Name",
minlength: "Category Name must consist of at least 3 characters"
},
stockid: {
required: "Please Enter Stock ID",
minlength: "Category Name must consist of at least 3 characters"
},
sell: {
required: "Please Enter Selling Price",
minlength: "Category Name must consist of at least 3 characters"
},
cost: {
required: "Please Enter Cost Price",
minlength: "Category Name must consist of at least 3 characters"
}
}
});
});
function numbersonly(e){
var unicode=e.charCode? e.charCode : e.keyCode
if (unicode!=8 && unicode!=46 && unicode!=37 && unicode!=38 && unicode!=39 && unicode!=40 && unicode!=9){ //if the key isn't the backspace key (which we should allow)
if (unicode<48||unicode>57)
return false
}
}
</script>
</script>
</head>
<body>
<!-- TOP BAR -->
<?php include_once("tpl/top_bar.php"); ?>
<!-- end top-bar -->
<!-- HEADER -->
<div id="header-with-tabs">
<div class="page-full-width cf">
<ul id="tabs" class="fl">
<li><a href="dashboard.php" class="dashboard-tab">Dashboard</a></li>
<li><a href="view_sales.php" class="sales-tab">Sales</a></li>
<li><a href="view_customers.php" class=" customers-tab">Customers</a></li>
<li><a href="view_purchase.php" class="purchase-tab">Purchase</a></li>
<li><a href="view_supplier.php" class=" supplier-tab">Supplier</a></li>
<li><a href="view_product.php" class="active-tab stock-tab">Stocks / Products</a></li>
<li><a href="view_payments.php" class="payment-tab">Payments / Outstandings</a></li>
<li><a href="view_report.php" class="report-tab">Reports</a></li>
</ul> <!-- end tabs -->
<!-- Change this image to your own company's logo -->
<!-- The logo will automatically be resized to 30px height. -->
<a href="#" id="company-branding-small" class="fr"><img src="<?php if(isset($_SESSION['logo'])) { echo "upload/".$_SESSION['logo'];}else{ echo "upload/NIC.png"; } ?>" alt="Point of Sale" /></a>
</div> <!-- end full-width -->
</div> <!-- end header -->
<!-- MAIN CONTENT -->
<div id="content">
<div class="page-full-width cf">
<div class="side-menu fl">
<h3>Stock Management</h3>
<ul>
<li><a href="add_stock.php">Add Stock/Product</a></li>
<li><a href="view_product.php">View Stock/Product</a></li>
<li><a href="add_category.php">Add Stock Category</a></li>
<li><a href="view_category.php">view Stock Category</a></li>
<li><a href="view_stock_availability.php">view Stock Available</a></li>
</ul>
</div> <!-- end side-menu -->
<div class="side-content fr">
<div class="content-module">
<div class="content-module-heading cf">
<h3 class="fl">Add Stock </h3>
<span class="fr expand-collapse-text">Click to collapse</span>
<div style="margin-top: 15px;margin-left: 150px"></div>
<span class="fr expand-collapse-text initial-expand">Click to expand</span>
</div> <!-- end content-module-heading -->
<div class="content-module-main cf">
<?php
//Gump is libarary for Validatoin
if(isset($_POST['name'])){
$_POST = $gump->sanitize($_POST);
$gump->validation_rules(array(
'name' => 'required|max_len,100|min_len,3',
'stockid' => 'required|max_len,200',
'sell' => 'required|max_len,200',
'cost' => 'required|max_len,200',
'supplier' => 'max_len,200',
'category' => 'max_len,200'
));
$gump->filter_rules(array(
'name' => 'trim|sanitize_string|mysql_escape',
'stockid' => 'trim|sanitize_string|mysql_escape',
'sell' => 'trim|sanitize_string|mysql_escape',
'cost' => 'trim|sanitize_string|mysql_escape',
'category' => 'trim|sanitize_string|mysql_escape',
'supplier' => 'trim|sanitize_string|mysql_escape'
));
$validated_data = $gump->run($_POST);
$name = "";
$stockid = "";
$sell = "";
$cost = "";
$supplier = "";
$category = "";
if($validated_data === false) {
echo $gump->get_readable_errors(true);
} else {
$name=mysql_real_escape_string($_POST['name']);
$stockid=mysql_real_escape_string($_POST['stockid']);
$sell=mysql_real_escape_string($_POST['sell']);
$cost=mysql_real_escape_string($_POST['cost']);
$supplier=mysql_real_escape_string($_POST['supplier']);
$category=mysql_real_escape_string($_POST['category']);
$count = $db->countOf("stock_details", "stock_name ='$name'");
if($count>1)
{
$data='Dublicat Entry. Please Verify';
$msg='<p style=color:red;font-family:gfont-family:Georgia, Times New Roman, Times, serif>'.$data.'</p>';//
?>
<script src="dist/js/jquery.ui.draggable.js"></script>
<script src="dist/js/jquery.alerts.js"></script>
<script src="dist/js/jquery.js"></script>
<link rel="stylesheet" href="dist/js/jquery.alerts.css" >
<script type="text/javascript">
jAlert('<?php echo $msg; ?>', 'NIC');
</script>
<?php
}
else
{
if($db->query("insert into stock_details(stock_id,stock_name,stock_quatity,supplier_id,company_price,selling_price,category) values('$stockid','$name',0,'$supplier',$cost,$sell,'$category')"))
{
$db->query("insert into stock_avail(name,quantity) values('$name',0)");
$msg=" $name Stock Details Added" ;
header("Location: add_stock.php?msg=$msg");
}else
echo "<br><font color=red size=+1 >Problem in Adding !</font>" ;
}
}
}
if(isset($_GET['msg'])){
$data=$_GET['msg'];
$msg='<p style=color:#153450;font-family:gfont-family:Georgia, Times New Roman, Times, serif>'.$data.'</p>';//
?>
<script src="dist/js/jquery.ui.draggable.js"></script>
<script src="dist/js/jquery.alerts.js"></script>
<script src="dist/js/jquery.js"></script>
<link rel="stylesheet" href="dist/js/jquery.alerts.css" >
<script type="text/javascript">
jAlert('<?php echo $msg; ?>', 'NIC');
</script>
<?php
}
?>
<form name="form1" method="post" id="form1" action="">
<table class="form" border="0" cellspacing="0" cellpadding="0">
<tr>
<?php
$max = $db->maxOfAll("id", "stock_details");
$max=$max+1;
$autoid="SD".$max."";
?>
<td><span class="man">*</span>Stock ID:</td>
<td><input name="stockid" type="text" id="stockid" readonly maxlength="200" class="round default-width-input" value="<?php echo $autoid; ?>" /></td>
<td><span class="man">*</span>Name:</td>
<td><input name="name"placeholder="ENTER CATEGORY NAME" type="text" id="name" maxlength="200" class="round default-width-input" value="<?php echo $name; ?>" /></td>
</tr>
<tr>
<td><span class="man">*</span>Cost:</td>
<td><input name="cost" placeholder="ENTER COST PRICE" type="text" id="cost" maxlength="200" class="round default-width-input" onkeypress="return numbersonly(event)" value="<?php echo $cost; ?>" /></td>
<td><span class="man">*</span>Sell:</td>
<td><input name="sell" placeholder="ENTER SELLING PRICE" type="text" id="sell" maxlength="200" class="round default-width-input" onkeypress="return numbersonly(event)" value="<?php echo $sell; ?>" /></td>
</tr>
<tr>
<td>Supplier:</td>
<td><input name="supplier" placeholder="ENTER SUPPLIER NAME" type="text" id="supplier" maxlength="200" class="round default-width-input" value="<?php echo $supplier; ?>" /></td>
<td>Category:</td>
<td><input name="category" placeholder="ENTER CATEGORY NAME" type="text" id="category" maxlength="200" class="round default-width-input" value="<?php echo $category; ?>" /></td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td>
</td>
<td>
<input class="button round blue image-right ic-add text-upper" type="submit" name="Submit" value="Add">
(Control + S)
<td align="right"><input class="button round red text-upper" type="reset" name="Reset" value="Reset"> </td>
</tr>
</table>
</form>
</div> <!-- end content-module-main -->
</div> <!-- end content-module -->
</div> <!-- end full-width -->
</div> <!-- end content -->
<!-- FOOTER -->
<div id="footer">
<p>Any Queries email to <a href="mailto:sridhar.NIC@gmail.com?subject=Stock%20Management%20System">sridhar.NIC@gmail.com</a>.</p>
</div> <!-- end footer -->
</body>
</html>
I don't understand why "if(isSet($_GET['sid'])) " works before it is declared in the variable name(" $name = $_GET['sid'];"). 1. How does php store the date in this get statement? 2. Is GET an array? Code: [Select] if(isSet($_GET['sid'])) { echo "<h2>Exercise</h2>"; $name = $_GET['sid']; $timein = time(); $quest=1; $nextquest=2; } else { echo "<h2>Enter Student Number:</h2>"; $quest=0; $nextquest=0; } Hi all, I have this structure of two functions: function get_string_between($string, $start, $end){ $string = " ".$string; $ini = strpos($string,$start); if ($ini == 0) return ""; $ini += strlen($start); $len = strpos($string,$end,$ini) - $ini; return substr($string,$ini,$len); } function normaliza($text){ function entre($string, $start, $end){ $string = " ".$string; $ini = strpos($string,$start); if ($ini == 0) return ""; $ini += strlen($start); $len = strpos($string,$end,$ini) - $ini; return substr($string,$ini,$len); } foreach (count_chars($text, 1) as $i => $val) { if(chr($i)=='<'){ $totaltag = $val; } } for($u=0; $u <= $totaltag; $u++){ $parsed = entre($text, "<", ">"); $text = str_replace('<'.$parsed.'>',"",$text); } return $text; } The I passed a text named $data throught both functions and I got the correct return: $status = get_string_between($data, 'Inativo', 'CNPJ'); $status = normaliza($status); echo $status.' '; Just after, I passed the same folowing text throught the same both functions: $cnpj = get_string_between($data, 'CNPJ', 'Grau'); $cnpj = normaliza($status); echo $cnpj.' '; And I got this error: Cannot redeclare entre() (previously declared in C:\Users\entidade.php:47) in C:\Users\entidade.php on line 47 Why? I thougth this kind strange because it didin't gave the same error for the function get_string_between. Thanks danilo jr. Dear all, I am new to the forums, with a hope that somebody can point me in the right direction. I am coding a new photo website, and am doing it with PHP to maximize my flexibility. In essence I want to have a set of gallery folder on the server, and the site reads off these folders and automatically generates the required galleries. My PHP code is below, along with a detail of the exact problem: <?php $main = "Collections/"; # Location of galleries $big = "Large/"; # Location of big versions (subdir within each gallery) $i = 0; #Gallery Iterator #Searching for galleries & Checking only for directories (save them im $galleries array) $tempgalleries = scandir($main); foreach ($tempgalleries as $gallery_iterate) { if (!is_dir($gallery_iterate)) { $galleries[]=$gallery_iterate; } } #Iterating galleries. Collecting each gallery's images (saving in $GalleryImages.$i). This creates an image array for each $galleries[$i] for($i=0; $i<=sizeof($galleries)-1; $i++) { #Making the title nice (from the the directory names) $GalleryTitles[$i] = str_replace('_',' ', $galleries[$i]);; $temp_gallery = opendir($main.$galleries[$i]); #Checking for Images and storing in array if valid while (false !== ($image = readdir($temp_gallery))) { if ($image != "." && $image != ".." && $image != rtrim($big,"/") && strstr($image,'.jpg')) { ${$GalleryImages_.$i}[] = $image; } } #Sorting the images numerically natsort(${$GalleryImages_.$i}); closedir($temp_gallery); } #Better location for the buttons!! #Printing the galleries and all the html required for naming, separation, etc.. This is also an iteration for($i=0; $i<=sizeof($galleries)-1; $i++) { echo('<div class="galleries_hidden" id="gallery_'.$i.'"><hr><br><div class="Gallery_Title"><b><i><big>'.$GalleryTitles[$i].'</big></i></b></div><br>'); $folder=$galleries[$i]; foreach(${$GalleryImages_.$i} as $thumb_image) { echo '<a href="'.$main . $folder .'/'. $big . 'large_'. $thumb_image . '" rel="lightbox['.$folder.']" title="'.$folder.'"><img src="' . $main . $folder .'/'. $thumb_image. '" alt="'.$folder.'" class="Gallery_Image" /></a>'; } echo('</div>'); } #Making the buttons to cycle the galleries for($i=0; $i<sizeof($galleries); $i++) { echo('<input type="button" id="gallery_'.$i.'" value="Show '.$GalleryTitles[$i].'" onclick="showgallery(');echo("'gallery_".$i."');");echo('" /><br><br>'); } ?> I have managed to make each aspect work, exept one. The last portion, as commented: #Making the buttons to cycle the galleries for($i=0; $i<sizeof($galleries); $i++) { echo('<input type="button" id="gallery_'.$i.'" value="Show '.$GalleryTitles[$i].'" onclick="showgallery(');echo("'gallery_".$i."');");echo('" /><br><br>'); } This piece of code generates buttons which shows one gallery, and hides the rest. This is done by changing the classes of the divs from "galleries_visible" to "galleries_hidden", as applicable. This is done using a javascript declared in the header as follows: Code: [Select] <script type="text/javascript"> function showgallery(id) { var divall = document.getElementsByTagName("div"); var i=0; for (i=0;i<divall.length;i++) { if(divall[i].className == "galleries_visible") { divall[i].className = "galleries_hidden"; } var showdiv = document.getElementById(id); showdiv.className = "galleries_visible"; return false; } </script> When I have the button-generating php code below the gallery-generating php code, then the javascript seems to work, by showing and hiding respective galleries. These galleries and their litebox viewer all work normally. However, when putting the button-creator php above the gallery-generator php, then the buttons appear as normal, and the javascript runs, but it cannot find the div with the id it searches for: Code: [Select] var showdiv = document.getElementById(id); showdiv.className = "galleries_visible"; I am confused. The PHP code makes several arrays which stores all the file and folder information, and these arrays are read by the button-generator irrespective of its position (I know this because the buttons are generated based on the content of non-empty arrays). Why can't the javascript change the gallery-containing divs when they are below the button-containing div? Any help is greatly appreciated, I just cant seem to find whats wrong! Kind regards, Frederik I'm receiving a cannot redeclare function error. I have a functions.php pack that I only require_once once. require_once 'functions.php'; require_once 'classes.php'; A little further into the code I conditionally require another php file. require_once 'dataentry.php'; It appears that when the require_once 'dataentry.php' line is hit, I receive this redeclare error. I do not call any include or require in dataentry.php. The first function in my function pack throws this error, and when I comment it out, the next function throws the error. Im appalled as to the reasoning for this error. Any Thoughts? Hi All, My appologies in advance. I am pretty sure that this has probably been answered before by someone...but for the life of me I carn't find the answer in any forums. My basic question is this. Can you create an object at the beginning of a script, and then call its methods from within functions? I have coded the following: <?php ///import classes to use require "booking_form_gui.php"; $booking = new booking_form_gui(); function _booking_form($form_state){ ///$booking = new booking_form_gui(); return $booking -> date_selection(); <----------this line causes the error I guess } The problem is that when I run this code, I get an error message similar to the following: Fatal error: Call to a member function date_selection() on a non-object in /var/www/drupal_6/sites/default/modules/booking_system/booking_form/booking_form.module on line 127 Anyone any ideas how I could get round this? Thanks, Mark. Newb here trying to build a form that works with ints to count how many red shirts die in a classic episode of star trek (exercise to get better with forms and ints). I have an error which reads as '7 Error message: Undefined index: rsTot'. I have tried a few things and read that setting it(casting it?) as a float was the safest way to work with the int, however each thing i've attempted results in some sort of error so after a day of reading and trying i'm very confused and hoping for an answer I can understand here.
I have read through stackOverflow for an answer but not seen one which i can understand and apply that speaks to the problem i'm having of initially entering and process a number as an int which i can later do some math on.
error can be seen he http://zephir.seattlecentral.edu/~jstein11/itc250/z14/w03c0102_OOPform/w03c0102_OOPform.php
<?php //w03c0102_OOPform
require '../inc_0700/config_inc.php'; #provides configuration, pathing, error handling, db credentials
//END CONFIG AREA ----------------------------------------------------------
$rsTot = (float)$_POST['rsTot'];// float more forgiving int
$rsSurvived = (float)$_POST['rsSurvived'];
$rsSum = $rsTot - $rsSurvived;
$rsRatio = 0;
# Read the value of 'action' whether it is passed via $_POST or $_GET with $_REQUEST
if(isset($_REQUEST['act'])){$myAction = (trim($_REQUEST['act']));}else{$myAction = "";}
switch ($myAction)
{//check 'act' for type of process
case "display": # 2)Display user's name!
showName();
break;
default: # 1)Ask user to enter their name
showForm();
}
function showForm()
{# shows form so user can enter their name. Initial scenario
get_header(); #defaults to header_inc.php
?>
<script type="text/javascript" src="<?=VIRTUAL_PATH;?>include/util.js"></script>
<script type="text/javascript">
function checkForm(thisForm)
{//check form data for valid info
if(empty(thisForm.YourName,"Field Empty, please fill out")){return false;}
return true;//if all is passed, submit!
}
</script>
<p align="center"><?=smartTitle();?></p>
<h3 align="center">Star Trek Classic</h3>
<h2 align="center">Death-Shirt Calculator</h2>
<form action="<?=THIS_PAGE;?>" method="post" onsubmit="return checkForm(this);">
<p align="center">Classic Star Trek Episode Name<br />
<input type="text" name="epName" /><br /><br />
Esitmated number of officers with red shirts<br />
<input type="text" name="rsTot" /><br /><br />
Esitmated number of officers with red shirts<br />
to actually survive the episode<br />
<input type="int" name="rsSurvived" /><br /><br />
<input type="submit" value="Go!">
</p>
<input type="hidden" name="act" value="display" />
</form>
<?php
get_footer(); #defaults to footer_inc.php
}
function showName()
{#form submits here we show entered name
get_header(); #defaults to footer_inc.php
if(!isset($_POST['epName']) || $_POST['epName'] == '')
{//data must be sent
feedback("No form data submitted"); #will feedback to submitting page via session variable
myRedirect(THIS_PAGE);
}
if(!ctype_alnum($_POST['epName']))
{//data must be alphanumeric only
feedback("Only letters and numbers are allowed. Please re-enter your name."); #will feedback to submitting page via session variable
myRedirect(THIS_PAGE);
}
$epSubmitted = strip_tags($_POST['epName']);# strip data entered
echo '<h3 align="center">' . smartTitle() . '</h3>';
echo '<p align="center">Episode Name: <b>' . $epSubmitted . '</b><br />';
echo '<p align="center">Total Red Shirts Appearing: <b>' . $rsTot . '<br />';
echo 'Red Shirts Still Breathing at End of Episode: <b>' . $rsSurvived . '<br />';
echo 'Red Shirt Episode Survival Ratio: <b>' . $rsRatio . '</b>!</p>';
echo '<p align="center"><a href="' . THIS_PAGE . '">RESET</a></p>';
get_footer(); #defaults to footer_inc.php
}
?>
Edited by Chezshire, 25 May 2014 - 08:10 AM. Hello All,
I have designed a small php module Which has more than 80 .php files. I want to give the access level for all those files through a global access.php file. But i am not getting how it can be developed. I made a table in database which has all the scripts name. When those are checked value 1 it has to be visible for those users who come under a perticular position like MD, CEO, Sales Manager etc. Here is my table structure
script.JPG 20.61KB
0 downloads
and i tried doing like this
if($_SESSION['pos']=='admin')
{
echo "<h1> SORRY YOU DONT HAVE ACCESS </h1>";
}
else
{
// file contents...
}
Fatal error: Cannot redeclare limitatexto() (previously declared in funciones.php:4) in funciones.php on line 12 <?php function limitatexto( $texto, $limite ) - Line 4 { if( strlen($texto)>$limite ) { $texto = substr( $texto,0,$limite ); } return $texto; } Line 12 I have mysqli object in Database class base: [color=]database class:[/color] class Database { private $dbLink = null; public function __construct() { if (is_null($this->dbLink)) { // load db information to connect $init_array = parse_ini_file("../init.ini.inc", true); $this->dbLink = new mysqli($init_array['database']['host'], $init_array['database']['usr'], $init_array['database']['pwd'], $init_array['database']['db']); if (mysqli_connect_errno()) { $this->dbLink = null; } } } public function __destruct() { $this->dbLink->close(); } } Class derived is Articles where I use object dBLink in base (or parent) class and I can't access to mysqli methods (dbLink member of base class): Articles class: require_once ('./includes/db.inc'); class Articles extends Database{ private $id, .... .... $visible = null; public function __construct() { // Set date as 2009-07-08 07:35:00 $this->lastUpdDate = date('Y-m-d H:i:s'); $this->creationDate = date('Y-m-d H:i:s'); } // Setter .... .... // Getter .... .... public function getArticlesByPosition($numArticles) { if ($result = $this->dbLink->query('SELECT * FROM articles ORDER BY position LIMIT '.$numArticles)) { $i = 0; while ($ret = $result->fetch_array(MYSQLI_ASSOC)) { $arts[$i] = $ret; } $result->close(); return $arts; } } } In my front page php I use article class: include_once('./includes/articles.inc'); $articlesObj = new articles(); $articles = $articlesObj->getArticlesByPosition(1); var_dump($articles); [color=]Error that go out is follow[/color] Notice: Undefined property: Articles::$dbLink in articles.inc on line 89 Fatal error: Call to a member function query() on a non-object in articles.inc on line 89 If I remove constructor on derived class Articles result don't change Please help me I have an existing instance of my class Database, now I want to call that instance in my Session class, how would I go about doing this? Ok. I know you can pass the object of a class as an argument. Example: class A { function test() { echo "This is TEST from class A"; } } class B { function __construct( $obj ) { $this->a = $obj; } function test() { $this->a->test(); } } Then you could do: $a = new A(); $b = new B($a); Ok so that's one way i know of. I also thought that you could make a method static, and do this: (assuming class A's test is 'static') class B { function test() { A::test(); } } But that is not working. I'd like to know all possible ways of accomplishing this. Any hints are appreciated. thanks If a class has a constructor but also has a static method, if I call the static method does the constructor run so that I can use an output from the constructor in my static method? --Kenoli Hi Can you call Class A's methods or properties from Class B's methods? Thanks. Hi, I need to be able to call a class based on variables. E.G. I would normally do: Code: [Select] $action = new pattern1() but i would like to be able to do it dynamicaly: Code: [Select] $patNum = 1; $action = new pattern.$patNum.() Im wondering if that's possible? If so what would the correct syntax be? Many Thanks. I have two classes: ## Admin.php <?php class Admin { public function __construct() { include("Config.php"); } /** * deletes a client * @returns true or false */ function deleteClient($id) { return mysql_query("DELETE FROM usernames WHERE id = '$id'"); } } ?> ## Projects.php <?php class Projects { public function __construct() { include("Config.php"); $this->admin = $admin; $this->dataFolder = $dataFolder; } /** * Deletes a project * @returns true or false */ function deleteProject($id) { $root = $_SERVER['DOCUMENT_ROOT']; $theDir = $root . $this->dataFolder; $sql = mysql_query("SELECT * FROM projectData WHERE proj_id = '$id'"); while ($row = mysql_fetch_array($sql)) { $mainFile = $row['path']; $thumb = $row['thumbnail']; if ($thumb != 'null') { unlink($theDir . "/" . substr($thumb,13)); } unlink($theDir . "/" . substr($mainFile,13)); } $delete = mysql_query("DELETE FROM projectData WHERE proj_id = '$id'"); $getDir = mysql_query("SELECT proj_path FROM projects WHERE id = '$id'"); $res = mysql_fetch_array($getDir); rmdir($theDir . "/" . $res['proj_path']); return mysql_query("DELETE FROM projects WHERE id = '$id'"); } } ?> How can I call deleteProject() from within Admin.php? Hi people! class FirstOne{ public function FunctionOne($FirstInput){ //do stuff and output value return $value1; } } Then:- class SecondOne{ public function FunctionTwo($AnotherInput){ //do stuff and output value return $value2; } } What I want to know is this, if I want to use FunctionOne() in Class SecondOne do I do it like this:- (Assume as I have instantiated the first class using $Test = new FirstOne(); ) class SecondOne{ function SecondedFunction(){ global $Test; return $Test->FunctionOne(); } public function FunctionTwo($AnotherInput){ //do stuff and output value return $value2; } public function FunctionThree(){ //some code here $this->Test->SecondedFunction();<--I think as I can omit the $this-> reference } } My point is: Do I have to do it this way or is there way of having this done through __construct() that would negate the need for a third party function? I have a version working, I just think that it is a little convoluted in the way as I have done it, so I thought I would ask you guys. Any help/advice is appreciated. Cheers Rw I have a class in which I have a function called connection. I am now trying to call this function from another class, but it will not work. It works if I put the code in from the other function rather than calling it but that defeats the purpous. class locationbox { function location() { $databaseconnect = new databaseconnect(); $databaseconnect -> connection();{ $result = mysql_query("SELECT * FROM locations"); while($row = mysql_fetch_array($result)) // line that now gets the error, mysql_fetch_array() expects parameter 1 to be resource, boolean given //in { echo "<option>" . $row['location'] . "</option>"; } } }} Hi all, I have two classes. Registration and Connection. Inside a registration.php I include my header.php, which then includes my connection.php... So all the classes should be declared when the page is loaded. This is my code: registration.php: <?php include ('assets/header.php'); ?> <?php class registration{ public $fields = array("username", "email", "password"); public $data = array(); public $table = "users"; public $dateTime = ""; public $datePos = 0; public $dateEntryName = "date"; function timeStamp(){ return($this->dateTime = date("Y-m-d H:i:s")); } function insertRow($data, $table){ foreach($this->fields as $key => $value){ mysql_query("INSERT INTO graphs ($this->fields) VALUES ('$data[$key]')"); } mysql_close($connection->connect); } function validateFields(){ $connection = new connection(); $connection->connect(); foreach($this->fields as $key => $value){ array_push($this->data, $_POST[$this->fields[$key]]); } $this->dateTime = $this->timeStamp(); array_unshift($this->data, $this->dateTime); array_unshift($this->fields, $this->dateEntryName); foreach($this->data as $value){ echo "$value"; } $this->insertRow($this->data, $this->table); } } $registration = new registration(); $registration->validateFields(); ?> <?php include ('assets/footer.php'); ?> At this point I cannot find my connection class defined on another included/included page. $connection = new connection(); $connection->connect; config.php (included within header.php) <? class connection{ public $dbname = '**'; public $dbHost = '**'; public $dbUser = '**'; public $dbPass = '**'; public $connect; function connect(){ $this->connect = mysql_connect($this->dbHost, $this->dbUser, $this->dbPass) or die ('Error connecting to mysql'); mysql_select_db($this->dbname, $this->connect); } } ?> Any ideas how to call it properly? I do know how to do this but I am curious about whether or not there is a "preferred" way to do this. I know there are a couple ways to use a class (I'll call Alpha_Class) within another class (I'll class Beta_Class) Let's say we have this simple class (Beta_Class): class beta { function foo(){ } } If I wanted to use the Alpha Class within the Beta Class, I could any number of things. For example: class beta { function foo(){ $this->alpha = new alpha; //$this->alpha->bar(); } } Or you could simply use the $GLOBALS array to store instantiated objects in: $GLOBALS['alpha'] = new alpha; class beta { function foo(){ //GLOBALS['alpha']->bar(); } } You could even declare Alpha_Class as a static class and thus would not need to be instantiated: static class alpha { static function bar(){} } class beta { function foo(){ //alpha::bar(); } } Those are the only ways I can think of right now. Are there any other ways to accomplish this? I was wondering which way is the best in terms of readability and maintainability. |
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