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PHP - Wrapping External Class
Hi guys! I have a specific requirement and need some help Say i have an external api library with Client class looking like this:
class Client
{
some constants..
private props..,
__construct()
public static function create($url)
{
some code
}
public static function authenticate($token)
{
some code
}
...dozen other methods
}
Current way of instantiating in every single other class where i need the client:
use Client;
MyFetchController
{
private $client;
public function __construct()
{
$this->client = Client::create(getenv('URL'))->authenticate(getenv('TOKEN'))
}
$this->client->use other methods in Client class
}
Is there a way to wrap that class so i have external parameters loaded through .env file automaticaly available on new wrapper class intialization with something like this:
MyFetchController
{
private $client;
public function __construct(WrappedClient $client)
{
$this->client = $client
}
public function getData()
{
$data = $this->client->parse(...)
}
}
Basically what i need is a class ready for DI in all other classes without inserting required auth and other parameters in constructor every single time Similar Tutorials
Table Issue - Multiple Location Values For User Pushes Values Out Of Row Instead Of Wrapping In Cell
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 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. 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? Hi I'm creating a program that creates an image from an input using imagettftext(). Is there a way I can force a new line if the text exceeds the permitted image width? Thanks in advance Ste Hello guys!
I'm currently writing a bit of an image gallery code which is working pretty well however there seems to be a few issues with the sytling and layout of the gallery. (It's nothing flash just displays the images and caption in category order)
Now I am not sure how to go about doing this but is there any way to wrap each category in a div? I have the whole while loop wrapped in a div at present but I would like each category wrapped so I can style it a bit easier.
Can someone please point me in the right direction. Currently my code looks like this:
function Gallery(){
ini_set('display_errors',1);
error_reporting(E_ALL);
$conn = mysqli_connect("Why","Hello","There","Friends")
or die('Cannot Connect to the database');
$q ="SELECT * FROM gallery_category AS c JOIN gallery_photos AS p ON p.categoryname = c.categoryname ORDER BY c.categoryid";
$result = mysqli_query($conn, $q)
or trigger_error("Query Failed! SQL: $conn - Error: ".mysqli_error(), E_USER_ERROR);
echo"<div class='gallery'>";
$categoryname='';
while($rows = mysqli_fetch_assoc($result)){
if ($categoryname != $rows['categoryname']) {
$categoryname = $rows['categoryname'];
echo"<div class='h'><h2>".$rows['categoryname']."</h2></div>";
}
echo"
<div class='gall'>
<div class='gl-img'><img src='pathway/to/gallery/".$rows['photoname']."' alt='".$rows['categoryname']."'/></div>
<div class='gl-cap'>".$rows['photocaption']."</div>
</div>";
}
echo"</div>";
$conn-> close();
}
I don't know how to go about updating it so that it is this section that is wrapped whilst the "gall" class repeats (if that makes sense)
echo"<div class='h'><h2>".$rows['categoryname']."</h2></div>";
}
echo"
<div class='gall'>
<div class='gl-img'><img src='pathway/to/gallery/".$rows['photoname']."' alt='".$rows['categoryname']."'/></div>
<div class='gl-cap'>".$rows['photocaption']."</div>
</div>";
So that it looks like this:
<div class="category"> <div class="h"><h2>Category Title</h2></div> <div class="gall"> <div class="gl-img"><img src="pathway/to/gallery/polarbear2.jpg"></div> <div class="gl-cap">Polar Bear</div> </div> <div class="gall"> <div class="gl-img"><img src="pathway/to/gallery/polarbear2.jpg"></div> <div class="gl-cap">Polar Bear</div> </div> <div class="gall"> <div class="gl-img"><img src="pathway/to/polarbear2.jpg"></div> <div class="gl-cap">Polar Bear</div> </div> <div class="gall"> <div class="gl-img"><img src="pathway/to/gallery/polarbear2.jpg"></div> <div class="gl-cap">Polar Bear</div> </div> </div>Any and all help on how to achieve this would be appreciated!! thank you Edited by laurenetherington, 26 November 2014 - 12:10 PM. 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 am trying to wrap a string with an anchor tag if it finds a match with a block of text. Here is an example text block: CONOCO 1'10x8 VC DF TP SGN||PRINCIPAL ILLUMINATION||ENG: CO3028TP_0VPR||DWG: CO200428||TO BE: DYED DIESEL (SPEC)|| The string I would want to wrap with a link would be "CO200428". The next problem is the drawings (what I'm searching the text for) has over 115,000 possibilities. The text blocks to search are over 1300. I have the drawing names stored in a simple mysql table...but doing a foreach takes forever...I imagine it will take even longer when looking in the text blocks... Is there a way to easily to do the anchor wrap? I don't know regex very well... How can I test if a chunk exceeds the image size and wrap that text to the next line. Not sure if I am even doing this correctly with my if statement. $text="Lorem Ipsum Lorem Ipsum Lorem Ipsum Lorem http://somelongurl.com/then-we-make-it-super-long-with-some-more/ Lorem Ipsum Lorem Ipsum Lorem Ipsum http://www.anotherlinks.com/"; $string_chunks = explode(' ', $text); foreach ($string_chunks as $chunk) { if($end_x + $chunk > $image_width){ $start_x = 5; $start_y += 20; } $coords = imagettfbbox($fontsize, $angle, $font, $chunk); $end_x = $coords[0] + $coords[4] + 10; $color_to_draw = is_a_url($chunk) ? $linkcolor : $black; imagettftext($im, $fontsize, $angle, $start_x, $start_y, $color_to_draw, $font, $chunk); $start_x += $end_x; } With this code I get: Lorem Ipsum Lorem Ipsum Lorem Ipsum Lorem http://somelongurl.com/then-we-make-it-super-long-with-some-more/ Lorem Ipsum Lorem Ipsum Lorem Ipsum http://www.anotherlinks.com/ What I would like to happen is something like: Lorem Ipsum Lorem Ipsum Lorem Ipsum Lorem http://somelongurl.com/then-we -make-it-super-long-with-some-more/ Lorem Ipsum Lorem Ipsum Lorem Ipsum http://www.anotherlinks.com/ This question has been asked almost exactly: Hi there, I know that php does not recognize onMouseOver events. however, Im wondering if their is a tricky way to get a javascript response from dynamic text. I am working on a nav menu in a wordpress site. wordpress has a function that displays a list of pages created in the admin. I want to be able to display a secondary list of pages when a top-level nav item is moused over. heres the code: <div id="top"> <script type="text/javascript"> function Show(who) { Clear(); divel=document.getElementById("drop"+who); divel.style.display="inline"; divel=document.getElementById("hn"+who); divel.className="selected"; } function Hide(who) { divel=document.getElementById("drop"+who); divel.style.display="none"; divel=document.getElementById("hn"+who); divel.className=""; } function Clear() { for (i=1;i<=3;i++) { divel=document.getElementById("drop"+i); divel.style.display="none"; divel=document.getElementById("hn"+i); divel.className=""; } } </script> <div id="home-nav" onMouseOut="Clear();"> <ul> <li id="hn1"><a href="wp_demo/profile" onMouseOver="Show('1')"><?php wp_list_pages(include=4&title_li=' ); ?></a></li> <li id="hn2"><a href="wp_demo/services" onMouseOver="Show('2')"><?php wp_list_pages( 'include=6&title_li=' ); ?></a></li> <li id="hn3"><a href="wp_demo/portfolio" onMouseOver="Show('3')"><?php wp_list_pages( 'include=8&title_li=' ); ?></a></li> <li id="hn4"><a href="wp_demo/contact" onMouseOver="Clear();"><?php wp_list_pages( 'include=12&title_li=' ); ?></a></li> <li id="hn5"><a href="wp_demo/hospitality" onMouseOver="Clear();"><?php wp_list_pages( 'include=10&title_li=' ); ?></a></li> </ul> </div> <!-- #homenav --> <div id="wrapper"> <div id="drop1" onMouseOver="Show('1')" onMouseOut="Hide('1')"> <img src="<?php bloginfo('stylesheet_directory'); ?>/images/blank.gif" alt="" width="960" height="8" border="0" /><br /> <div id="menu1"><ul> <?php wp_list_pages( 'child_of=4&sort_column=menu_order&title_li=' ); ?> </ul></div></div> <div id="drop2" onMouseOver="Show('2')" onMouseOut="Hide('2')"> <img src="<?php bloginfo('stylesheet_directory'); ?>/images/blank.gif" alt="" width="960" height="8" border="0" /><br /> <div id="menu2"><ul> <?php wp_list_pages( 'child_of=6&sort_column=menu_order&title_li=' ); ?> </ul></div></div> <div id="drop3" onMouseOver="Show('3')" onMouseOut="Hide('3')"> <img src="<?php bloginfo('stylesheet_directory'); ?>/images/blank.gif" alt="" width="960" height="8" border="0" /><br /> <div id="menu3"><ul> <?php wp_list_pages( 'child_of=8&sort_column=menu_order&title_li=' ); ?> </ul></div></div> Does anybody know a trick to get the dynamic text to be seen by the javascript? for example, if i put a inside the anchor tags before the php script starts, the onmouseover will register it, and display the secondary nav. I would place invisible divs with links on top of the dynamic text with z-index, but I want the text to be completely dynamic and the client to be able to add as many links as he/she wants. thanks! I am looking for a dynamic image script that handles word wrapping and possible font resizing. Basically, I have a dimensions, a font and a company name. So, lets say I am trying to make a 300x300 image for Bob's Boats in verdana. I want a script that not only creates the image, but tries to use up the available space (putting each word on a line, using a large font, horizontally and vertically aligning everything) Worst case I'll write my own, but the algorithm seems pretty complex. For example, lets say the companies name was: Chocolates in a Basket, it could be: Chocolates in a Basket Or: Chocolates in a Basket But never: Chocolates in a Basket Worst case, I might make it so that it supports 3 lines, but only ever puts the company name on 2 by default, and if the user wants to manually change it, they can. Even that isn't perfect though, because if the dimensions are something like 300x35, you wouldn't want a second line, let alone a 3rd. 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 $this-> reference } } My point is: Do I have to do it this way or is there way of having this done through __construct() that would negate the need for a third party function? I have a version working, I just think that it is a little convoluted in the way as I have done it, so I thought I would ask you guys. Any help/advice is appreciated. Cheers Rw I have two classes: ## Admin.php <?php class Admin { public function __construct() { include("Config.php"); } /** * deletes a client * @returns true or false */ function deleteClient($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? How does one go about using one class inside another? For example, building a class that does some series of functions, and uses a db abstraction layer class in the process? 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. Hi, My company has 240+ locations and as such some users (general managers) cover multiple sites. When I run a query to pull user information, when the user has multiple sites to his or her name, its adds the second / third sites to the next columns, rather than wrapping it inside the same table cell. It also works the opposite way, if a piece of data is missing in the database and is blank, its pull the following columns in. Both cases mess up the table and formatting. I'm extremely new to any kind of programming and maybe this isn't the forum for this question but figured I'd give it a chance since I'm stuck. The HTML/PHP code is below: <table id="datatables-column-search-select-inputs" class="table table-striped" style="width:100%"> <thead> <tr> <th>ID</th> <th>FirstName</th> <th>LastName</th> <th>Username</th> <th>Phone #</th> <th>Location</th> <th>Title</th> <th>Role</th> <th>Actions</th> </tr> </thead> <tbody> <?php //QUERY TO SELECT ALL USERS FROM DATABASE $query = "SELECT * FROM users"; $select_users = mysqli_query($connection,$query);
// SET VARIABLE TO ARRAY FROM QUERY while($row = mysqli_fetch_assoc($select_users)) { $user_id = $row['user_id']; $user_firstname = $row['user_firstname']; $user_lastname = $row['user_lastname']; $username = $row['username']; $user_phone = $row['user_phone']; $user_image = $row['user_image']; $user_title_id = $row['user_title_id']; $user_role_id = $row['user_role_id'];
// POPULATES DATA INTO THE TABLE echo "<tr>"; echo "<td>{$user_id}</td>"; echo "<td>{$user_firstname}</td>"; echo "<td>{$user_lastname}</td>"; echo "<td>{$username}</td>"; echo "<td>{$user_phone}</td>";
//PULL SITE STATUS BASED ON SITE STATUS ID $query = "SELECT * FROM sites WHERE site_manager_id = {$user_id} "; $select_site = mysqli_query($connection, $query); while($row = mysqli_fetch_assoc($select_site)) { $site_name = $row['site_name']; echo "<td>{$site_name}</td>"; } echo "<td>{$user_title_id}</td>"; echo "<td>{$user_role_id}</td>"; echo "<td class='table-action'> <a href='#'><i class='align-middle' data-feather='edit-2'></i></a> <a href='#'><i class='align-middle' data-feather='trash'></i></a> </td>"; //echo "<td><a href='users.php?source=edit_user&p_id={$user_id}'>Edit</a></td>"; echo "</tr>"; } ?>
<tr> <td>ID</td> <td>FirstName</td> <td>LastName</td> <td>Username</td> <td>Phone #</td> <td>Location</td> <td>Title</td> <td>Role</td> <td class="table-action"> <a href="#"><i class="align-middle" data-feather="edit-2"></i></a> <a href="#"><i class="align-middle" data-feather="trash"></i></a> </td> </tr> </tbody> <tfoot> <tr> <th>ID</th> <th>FirstName</th> <th>LastName</th> <th>Username</th> <th>Phone #</th> <th>Location</th> <th>Title</th> <th>Role</th> </tr> </tfoot> </table>
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