PHP - How Do I Make An Array Global To Use In Multiple Functions?

I need $row['con_id'] outside the function so I can put it into a query, but simply putting global in front of it won't work. What would be the right way to do?

This portion of code is INSIDE a function:

//Loop through the array of data

while ($row = mysqli_fetch_array ($data)) 

{

echo "<table padding='0' margin='0' class='knuffixTable'>";

echo "<input type='hidden' name='con_id' value='<?php echo " . $row['con_id'] . "; ?>' />";

echo "<tr><td width='65px' height='64px' class='avatar_bg' rowspan='2' colpan='2'><img src='$avatar_path' alt='avatar' /></td><td class='knuffix_username'><strong>" . $user_name;

echo "</strong><br />" . $row['category'] .  " | " . date('M d, Y', strtotime($row['contributed_date'])) . "</td></tr><tr><td>";

echo "<form action='' method='post'>

<input type='submit' name='plusVote' value='Y' />

<input type='submit' name='minusVote' value='N' />

</form></td><td class='votes'>Y[ - ] | N[ - ]</td></tr>";

echo "<tr><td class='knuffix_name' colspan='3'><strong>" . htmlentities($row['name']) . "</strong><br /></td></tr>";

echo "<tr><td colspan='2' class='knuffix_contribution'><pre>" . $row['contribution'] . "</pre><br /></td></tr>";

echo "</table>";



The PHP documentation does not show any examples how to GLOBALIZE a mysqli function. I'd need a way to use $row['con_id'] outside the function for the voting script I'm writing.

Thanks for the suggestions.

I know there is a function for this, but for some reason my google-fu is off and I cannot remember it for the life of me.

What is the function to export an array into the global namespace? Such that:
$var=array('key'=>'val');
somefunc($var); 
echo $key;

Would work?

Hey all,

I'm well aware of associative arrays (key/value pairs) and how you can index them in an array like this:

$character = array (name=>"John",
                    occupation=>"Programmer",
                    age=>22,
                    "Learned language "=>"PHP"
);

Then it makes sense to iterate through the key/value pairs of the array using foreach:

foreach ( $character as $key=>$val ){
    print "$key = $val<br>";
}

However, I was watching a video tutorial where he created a $_SESSION array and then created an array associative array: 

$_SESSION['cart'] = array();
[/PHP]
Then he added a function add_to_cart:

function add_to_cart($id){
if(isset($_SESSION['cart'][$id])){
$_SESSION['cart'][$id]++;
return true;
}
else {
$_SESSION['cart'][$id] = 1;
return true;
}
return false;
}

Now that $id variable holds an id converted to integer from the dataabse. So if first item is clicked, id holds a value of integer 1.
When I see this:

$_SESSION['cart'][$id]

I see an array that holds two indexes, each index containing an associative array: [[array() => ''], [1 => '']].
So at index 0 of $_SESSION is [array() => ''].
But then he uses the foreach iterator like this:

function total_items($cart){
$items = 0;
if(is_array($cart)){
foreach($cart as $id => $qty){
$items += $qty; d
}
}
return $items;
}

Now I'm very confused. As you can see in that foreach method, it says that $id (and its corresponding value) is an associative array of $cart array, not $_SESSION array. I don't see how that happened. I thought $cart and id$ were distinct indexes of $_SESSION. I don't see how $id is a key of the $cart array.

Thanks for any explanation to clear my confusion.

Hello,
Thanks to my new found knowledge of forms, I was able to make the following application!

Let me just tell you a bit about what it does. I basically made this to calculate the percentage of the total scores from League of Legends, a game that me and some of my friends play. The game is played with 5 Players per team, and they can each Kill, Die, or Assist people throughout the game.
The purpose of this application is to find out the % Kill, % Death and % Assist per Player in a team throughout one game. It calculates this by doing something like a Player1Kills/TotalKills*100 calculation.

Here is the code which I wrote :
Code: [Select]
<!--
Author : Soufin 'FlameDra' Rahimeen
Date Started : 4/1/2011
-->
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>League of Legends - Calculator</title>
    </head>
    <body>
        <form action="" method="POST">
            Player 1 : <input type="text" name="player1" value="Player Name"></input>
            K : <input type="text" name="player1K" value="Kills"></input>
            D : <input type="text" name="player1D" value="Deaths"></input>
            A : <input type="text" name="player1A" value="Assists"></input><br />
           
            Player 2 : <input type="text" name="player2" value="Player Name"></input>
            K : <input type="text" name="player2K" value="Kills"></input>
            D : <input type="text" name="player2D" value="Deaths"></input>
            A : <input type="text" name="player2A" value="Assists"></input><br />
           
            Player 3 : <input type="text" name="player3" value="Player Name"></input>
            K : <input type="text" name="player3K" value="Kills"></input>
            D : <input type="text" name="player3D" value="Deaths"></input>
            A : <input type="text" name="player3A" value="Assists"></input><br />
           
            Player 4 : <input type="text" name="player4" value="Player Name"></input>
            K : <input type="text" name="player4K" value="Kills"></input>
            D : <input type="text" name="player4D" value="Deaths"></input>
            A : <input type="text" name="player4A" value="Assists"></input><br />
           
            Player 5 : <input type="text" name="player5" value="Player Name"></input>
            K : <input type="text" name="player5K" value="Kills"></input>
            D : <input type="text" name="player5D" value="Deaths"></input>
            A : <input type="text" name="player5A" value="Assists"></input><br />
           
            <br />
            <input type="Submit" value="Submit"></input>
            <br />
            <br />
           
        </form>
       
        <?php
        
        $totalK = $_POST['player1K'] + $_POST['player2K'] + $_POST['player3K'] + $_POST['player4K'] + $_POST['player5K'];
        $totalD = $_POST['player1D'] + $_POST['player2D'] + $_POST['player3D'] + $_POST['player4D'] + $_POST['player5D'];
        $totalA = $_POST['player1A'] + $_POST['player2A'] + $_POST['player3A'] + $_POST['player4A'] + $_POST['player5A'];
        
        ?>
       
        <br />
       
        <!-- Player 1 Area  -->
        Player <?php echo $_POST['player1']?> has
        <?php 
        
        $player1Kpercent = $_POST['player1K']/$totalK*100;
        echo round("$player1Kpercent") . "%";
        
        ?>
        of total kills. He has
       
        <?php
        
        $player1Dpercent = $_POST['player1D']/$totalD*100;
        echo round("$player1Dpercent") . "%";
        
        ?>
       
        of total deaths, and he has
       
        <?php
        
        $player1Apercent = $_POST['player1A']/$totalA*100;
        echo round("$player1Apercent") . "%";
        
        ?>
       
        of total Assists.
       
       
        <br />
       
        <!-- Player 2 Area  -->
        Player <?php echo $_POST['player2']?> has
        <?php 
        
        $player2Kpercent = $_POST['player2K']/$totalK*100;
        echo round("$player2Kpercent") . "%";
        
        ?>
        of total kills. He has
       
        <?php
        
        $player2Dpercent = $_POST['player2D']/$totalD*100;
        echo round("$player2Dpercent") . "%";
        
        ?>
       
        of total deaths, and he has
       
        <?php
        
        $player2Apercent = $_POST['player2A']/$totalA*100;
        echo round("$player2Apercent") . "%";
        
        ?>
       
        of total Assists.
       
        <br />
       
        <!-- Player 3 Area  -->
        Player <?php echo $_POST['player3']?> has
        <?php 
        
        $player3Kpercent = $_POST['player3K']/$totalK*100;
        echo round("$player3Kpercent") . "%";
        
        ?>
        of total kills. He has
       
        <?php
        
        $player3Dpercent = $_POST['player3D']/$totalD*100;
        echo round("$player3Dpercent") . "%";
        
        ?>
       
        of total deaths, and he has
       
        <?php
        
        $player3Apercent = $_POST['player3A']/$totalA*100;
        echo round("$player3Apercent") . "%";
        
        ?>
       
        of total Assists.
       
       
        <br />
       
        <!-- Player 4 Area  -->
        Player <?php echo $_POST['player4']?> has
        <?php 
        
        $player4Kpercent = $_POST['player4K']/$totalK*100;
        echo round("$player4Kpercent") . "%";
        
        ?>
        of total kills. He has
       
        <?php
        
        $player4Dpercent = $_POST['player4D']/$totalD*100;
        echo round("$player4Dpercent") . "%";
        
        ?>
       
        of total deaths, and he has
       
        <?php
        
        $player4Apercent = $_POST['player4A']/$totalA*100;
        echo round("$player4Apercent") . "%";
        
        ?>
       
        of total Assists.
       
        <br />
       
        <!-- Player 5 Area  -->
        Player <?php echo $_POST['player5']?> has
        <?php 
        
        $player5Kpercent = $_POST['player5K']/$totalK*100;
        echo round("$player5Kpercent") . "%";
        
        ?>
        of total kills. He has
       
        <?php
        
        $player5Dpercent = $_POST['player5D']/$totalD*100;
        echo round("$player5Dpercent") . "%";
        
        ?>
       
        of total deaths, and he has
       
        <?php
        
        $player5Apercent = $_POST['player5A']/$totalA*100;
        echo round("$player5Apercent") . "%";
        
        ?>
       
        of total Assists.
       
        <b />
       
       
       
      </body>
</html>


Just for example, some screenshots.

For values input like :


The result is :


Now, as you can see the code is quite long and may be hard to understand in case I want to expand it in the future.
So, I was wondering how I can use functions to make the code more readable and shorter.
I'm sorry, I'm not used to using functions (yet).

Thanks in advance!

Hi:

I found this photo gallery tutorial online:

http://www.sitepoint.com/php-gallery-system-minutes/

I uploaded it and it works really well, but I'm stumped on how to add the functions listed at the bottom of the tutorial.

I want to be able to add, edit, and delete Categories and Photos.

It has the code to do it, but it doesn't give and examples.

Can someone show me how to make them work?

I really do not understand where to add them, if I need to make new pages, etc.

Any insight would be great!

Okay so my news script is set to view only 10 pieces of news. But I want it so that it starts a new page once I have more than 10 pieces of news.

Code: [Select]
<?php
require("functions.php");
include("dbconnect.php");

session_start();

head1();
body1();
new_temp();
sotw();
navbar();
     
$start = 0;
$display = 10;
$query = "SELECT * FROM news ORDER BY id DESC LIMIT $start, $display";
$result = mysql_query( $query );

if ($result) {
    while( $row = @mysql_fetch_array( $result, MYSQL_ASSOC ) ) {
        news_box( $row['news'], $row['title'], $row['user'], $row['date'], $row['id'] );
    }
    mysql_free_result($result);
} else {
    news_box( 'Could not retrieve news entries!', 'Error', 'Error', 'Error');
}
                   
footer();

mysql_close($link);
?>
I tried a few things but they failed....miserably.

I have this function:
Code: [Select]
function echo_exist($pre1,$ee,$post1) {
if ($ee!='') {
return $pre1;
return $ee;
return $post1;
}
else {
//do nothing
}
}
But when I try to echo it
Code: [Select]
echo_exist("(","$row['payment_type']",")");
I get syntax error, unexpected T_ENCAPSED_AND_WHITESPACE
If $row['payment_type'] exists, I want it to be displayed in parentheses like:  (AUTO)

I suspect it has to do with my ' characters for the associative array, but I am new with functions so perhaps it is the multiple arguments that are wrong?

've create a SOAP Server using the PHP Soap functions. It has 3 functions in it and is initialised as follows;

// Initialise the SOAP Server 
$opts = Array();
$opts['compression'] = SOAP_COMPRESSION_ACCEPT | SOAP_COMPRESSION_GZIP;
$server = new SoapServer('SOTBWSDL.wsdl', $opts);
$server->addFunction('getAvailability');
$server->addFunction('putReservation');
$server->addFunction('putCancelBooking');
$server->handle();

There are then 3 Functions as defined with the code in for each .

I have created a test client which makes the call as;

$client = new SoapClient('http://xxxxxxxxx/SOTBWSDL.wsdl',array('trace'=>1,'exceptions=>1'));
$res   = $client->getAvailability($xmlparams);

This works and returns data as expected.

However - if I try the call as

$res   = $client->putReservation($xmlparams);   (To another function) 

it is the first function (get Availability) that is executed.


Question 1: Are separate Functions ok to use - -or do they need to be in a Class?

Question 2: No Errors are thrown regarding the WSDL so I presume this must be ok ....

What reasons could cause this? Any help greatfully received.

Phil

I have this script
Code: [Select]
<?php
header("content-type: image/png");
include '../../api/config.php';
include "../../api/api.php";
$gamercard = getInfo($_GET['gamertag']);
updateStats($gamercard['Gamertag'], "Nxe", 75);
$type = $_GET['type'];
switch ($type)
{
case "dark":
$type = "dark.png";
break;
case "light":
$type = "light.png";
break;
default:
$type = "dark.png";
break;
}
$image = imagecreatefrompng("$type");  
$img = imagecreatetruecolor(imagesx($image), imagesy($image));
$avatar_l = imagecreatefrompng($gamercard["Avatarpic-l"]); 
$avatar_body = imagecreatefrompng($gamercard["Avatarpic-body"]); 
imagecopy($img, $image, 0, 0, 0, 0, imagesx($image), imagesy($image));
imagecopy($img, $avatar_l, 64, 7, 0, 0, imagesx($avatar_l), imagesy($avatar_l));
imagecopy($img, $avatar_body, 175, -40, 0, 0, imagesx($avatar_body), imagesy($avatar_body));
for($i = 1; $i <=count($gamercard["RecentGames"]); $i++)
{
$gameimg = imagecreatefromjpeg($gamercard["RecentGames"][$i]["Icon"]);
$x = ($i-1)*35 + 10;
imagecopy($img, $gameimg, $x, 77, 0, 0, imagesx($gameimg), imagesy($gameimg));
}
$ColorText = imagecolorallocate($img, 255, 255, 255);
ImageTTFText($img, 10, 0, 10, 127, $ColorText, "font.ttf", $gamercard['Gamertag']);
ImageTTFText($img, 10, 0, 135, 127, $ColorText, "font.ttf", $gamercard['Gamerscore']);
imagepng($img);  
imagedestroy($img); 
?>

which is made to call the updateStats() function 1 time everytime the page loads.
Heres the function (its in api.php)
Code: [Select]
function updateStats($gamertag, $type, $size)
{
$query = mysql_query("SELECT * FROM loadstats where Gamertag = '$gamertag' && Type = '$type'") or die(mysql_error());
$exists = mysql_num_rows($query); 
if ($exists == 0)
{
mysql_query("INSERT INTO loadstats (Gamertag, Type, Loads, Data) VALUES('$gamertag', '$type', '1', '$size' )") or die(mysql_error()); 
} else {
$row = mysql_fetch_array($query);
$newloads = $row['Loads'] + 1;
$newdata = $row['Data'] + $size;
mysql_query("UPDATE loadstats SET Loads = '$newloads' WHERE gamertag = '$gamertag' && Type = '$type'") or die(mysql_error()); 
mysql_query("UPDATE loadstats SET Data = '$newdata' WHERE gamertag = '$gamertag' && Type = '$type'") or die(mysql_error()); 
}
}

The wierd thing that is happening is, When i have the Header() set in the script, the updateStats() function appears to be called twice, but when the header is commented out, it is only called once.

I can tell this by the change of data in the MYSQL database, the Loads value increases by 2 when the header is set, and it only creases by 1 when it isnt set.


Any insight as to why this is happening would be greatly appreciated.

I am currently building my own MVC Framework and I have run into an issue that I can't solve when attempting to use 2 methods from a single model. I know that this isn't an issue with the queries or information being return. I am unsure of the proper way that I can call 2 methods when checking to see if a user is logged in... The issue that I face is both methods are calling the DB and it throws a PDO error which I don't know how to get around the issue.. Any guidance would be nice as I have been banging my head over this issue. Thank you!

 

Fatal error: Uncaught Error: Call to undefined method PDO::Select() in C:\xampp\htdocs\PicWrist\app\models\user.class.php:318 Stack trace: #0 C:\xampp\htdocs\PicWrist\app\controllers\home.php(21): User->getUser('4') #1 C:\xampp\htdocs\PicWrist\app\core\app.php(36): Home->index() #2 C:\xampp\htdocs\PicWrist\app\init.php(47): App->__construct() #3 C:\xampp\htdocs\PicWrist\public\index.php(5): require('C:\\xampp\\htdocs...') #4 {main} thrown in C:\xampp\htdocs\PicWrist\app\models\user.class.php on line 318

 

//Controller

<?php 
	/**
	 * Load the View
	 */
	class Controller{

		public function view($view, $data = []) {
			if (file_exists('../app/views/' . $view . '.php')) {
				require_once '../app/views/' . $view . '.php';
			} 
		}

		public function model($model, $data = []) {

			if (file_exists('../app/models/' . $model . '.class.php')) {
				require_once '../app/models/' . $model . '.class.php';

				return new $model();

			} else 

				return false;
		}
	}

?>

//Home Controller
<?php 
Class Home extends Controller {

	public static $user;
	public $errors;

	public function __construct() {

		self::$user = $this->model('user');

	}

	public function index() {
		$userdata 			= [];
		$data				= [];

		show(self::$user);
		$isLoggedin	= self::$user->isLoggedin;
		show($isLoggedin);

		$userdata = self::$user->getUser($_SESSION['user_id']);
		show($userdata);

		$this->view('home', $data);
	}

}

?>
<?php 
/**
 * Users
 */
class User
{
	private $db;
	private $errors = '';
	public $isLoggedin = False;
	public $isAdmin = False;

	public function __construct() {
		$this->isLoggedIn();
	}

	public function isLoggedIn() {

		if(isset($_SESSION['user_id'])){

			$data['user_id'] = $_SESSION['user_id'];
			$db = Database::getInstance();
			$query = "SELECT * FROM users WHERE user_id = :user_id LIMIT 1";
			$results = $db->Select($query, $data);

			if (is_array($results)) {
				 $this->isLoggedIn = True;
			}
		}

	}


	public function getUser($id) {

		if(isset($id)) {

			$data['user_id']	= intval($id);
			$db 				= Database::getInstance();
			$query 				= 'SELECT * FROM users WHERE user_id = :user_id';

			$results = $db->Select($query, $data);

			if (is_array($results)) {
				return $results;
			} else {
				return False;
			}
		} else {
			return False;
		}
	}

//DB
<?php 
	/**
	 * Database Connection
	 */
	class Database	{
		private $dbHost = DB_HOST;
		private $dbUser = DB_USER;
		private $dbPass = DB_PASS;
		private $dbName = DB_NAME;

		private $statment;
		private static $dbHandler;
		private $error;

		public function __construct()
		{
			$conn = 'mysql:host=' . $this->dbHost . ';dbname=' . $this->dbName;

			$options = array(
				PDO::ATTR_PERSISTENT 	=> true,
				PDO::ATTR_ERRMODE 		=> PDO::ERRMODE_EXCEPTION
			);

			try {
				self::$dbHandler = new PDO($conn, $this->dbUser, $this->dbPass, $options);
			} catch (PDOException $e) {
				self::$error = $e->getMessage();
				echo self::$error;
			}
		}

		public static function getInstance() {

			if(self::$dbHandler) {
				return self::$dbHandler;
			}

			return $instance = new Self();
		}

		public function Select($query, $data = array()) {
			$statement = self::$dbHandler->prepare($query);
			$result	= $statement->execute($data);

			If($result) {
				$data = $statement->fetchAll(PDO::FETCH_OBJ);
					if(is_array($data)) {
						// show($data);
						return $data;
				}
			}

			return False;
		}

		public function Update($query, $data = array()) {
			$statement = self::$dbHandler->prepare($query);
			$result	= $statement->execute($data);

			If($result) {
				return True;
			} 
			
			return False;

		}

	}

?>

 

Edited July 14 by avargas94
Wrong Code

This is a bit of a more advanced question so I am hoping there are some advanced programmers online at this time . Anyways basically I want to be able to "queue" functions from a class in a single call and am wondering if I am doing it correctly or if there is a better way to do it. Here is my code:


<?php
class test {
     private static $one;
     private static $two;
     private static $three;

     public function callOne($val){
          $one .= $val;
          return $this;
     }
     
     public function callTwo($val){
          $two .= $val;
          return $this;
     }

     public function callThree($val){
           $three .= $val;
           return $this;
     }

     public function print(){
          echo $this->one.' '.$this->two.' '.$this->three;
     }
}
?>


now when I want to call this I can do:

$test = new test();
$test->callOne('one')->callTwo('two')->callThree('three');
$test->callOne('another one');
$test->print();


Is there a better way to do this or is there a different method of doing this? Just wanna make sure I am doing it right lol.

quick layout trying to accomplish

Radio Boxes
O O O O O O O

SEARCH
..............    -OK-



OK is the submit button


POST should be

radiox (function to run) +search



user select radiobox 4 and then searches xxxaaa then presses OK then POST PHP_SELF

same page being used (index.php)



im having an issue trying to get the radio to be selected with teh SEARCH then SUBMIT and RUN a function to perform with the DATA



//later looking at trying to view it as the script in the backend is running rather then waiting for it BUT thats just me a google to find lol




<?php
if (isset($_REQUEST['search'])) {
   $search = escapeshellcmd($_REQUEST['search']);
   $command = '/etc/SCRIPT/BLAHLOG ' . $search;
   printCmd($command, true);
} ?>

<?php
if radio3 SELECTED THEN
   $search = escapeshellcmd($_REQUEST['search']);
   $command = '/etc/SCRIPT/BLAHSQLscript ' . $search;
   printCmd($command, true);

?>




     <form>
   <div id="radio">
   <input type="radio" id="radio1" name="radio" /><label for="radio1">BLAhscript</label>
   <input type="radio" id="radio2" name="radio" /><label for="radio2">BLAHTEST</label>
   <input type="radio" id="radio3" name="radio" /><label for="radio3">BLAHSQLscript</label>
        <input type="radio" id="radio4" name="radio" /><label for="radio4">BLAHTEST</label>
        <input type="radio" id="radio5" name="radio" /><label for="radio5">BLAHREAD</label>
        <input type="radio" id="radio6" name="radio" /><label for="radio6">BLAHLOG</label>
        <input type="radio" id="radio7" name="radio" /><label for="radio7">BLAHUSAGE</label>
        <input type="radio" id="radio8" name="radio" /><label for="radio8">BLAHNETWORK</label>
        <input type="radio" id="radio9" name="radio" /><label for="radio9">BLAH9</label>
        <input type="radio" id="radio10" name="radio" /><label for="radio10">BLAH10</label>
       
       
   </div>
</form>
   
    <p>&nbsp;</p>
    <p><strong>Enter a site:</strong>
      <input type="text" name="search" id="search" />
      <input type="submit" value="OK"/>


(PUT IT IN THE SAME PAGE from the response of RADIO4 selected ---PLUS ----SEARCH)

<div id="RESPONSE" style="width: 540px"></div>

I attempted to try to do what was in the comments, but I am not able to do it any help is appreciated

Code: [Select]
<?php
$a = array(9, 3, 1, 0, 99, 2, 5, 6, 32, 1, 55);
$b = array(9, 18, 1, 0, 23, 22, 4, 6, 5, 32, 55);

function getAverage () {
echo "The average is " . array_sum($a) . "\n"; // Show the sum of the entire array (should display 19.36)
}
getAverage();
echo "<br><br>";

function highestValue() {
echo $a[max]; // Show the index value of the highest number (should display 4)
echo $a(max); // Show the value of index 4 (should display 99)
echo $a[min]; // Show the index value of lowest number (should display 3)
echo $a(min); // Show the value of index 4 (should display 0)
}
highestValue();
echo "<br><br>";

function displayMatch() {
//Write a function that tests the values of both arrays. If the values at the same index match display the following: "The values at <insert the matching index> match."
}
displayMatch();
?>

Hi,

 I am a little bit new to php, and I am learning about array functions. I just wanted to know the difference between implode and explode in arrays, and how each of them would be used? Thank you!

hi very good, hi very good, I have a label on a form select and I get that value with $ _POST like this: $ _POST like this:
$ gallery = array ($ _POST ['gallery']);
and that value will put it he
$ image = $ sitemap-> gallery [$ gallery] -> addChild ('image');
the problem is giving me error is as follows:
Fatal error: Call to a member function addChild () on a non-object in
I do not understand is that if I put a value directly asin me do it like so:
 $ gallery = 0;
$ Image = $ sitemap-> gallery [$ gallery] -> addChild ('image');
I do well, what happens is that I want the user to choose,
Kind of strange as it may fix.