PHP - If / Else Statements (php Newbe, Still Struggling)

Hi,

I have products page which products page and I am echoing the ID of each product into a link with the description of the product as the anchor text.

Code: [Select]
<a href="product.php?ID=<?php echo $row['ID']; ?>" class='productlink' ><?php echo $row['description']; ?></a>
However I am struggling to Get the information from the receiving 'product.php' page.

The code I have on the product.php page is as follows:

Code: [Select]
<?php 
$ID = 0;
if (isset($_GET['ID'])) {
  $ID = $_GET['ID'];
} 
?>


<?php

echo $_GET['price']; // outputs: 1

?>

However nothing is being echoed out.  I just a blank screen. Am I missing like capital letters.  My column is title 'ID'.

Do I need to query the database in someway on the receiving page or do I just use a different GET code?

Creating a basic MVC framework.
I may confuse myself while asking this, so bare with me if this is confusing for you also...


As far as i understand, the URLs are in the following format:
www.example.com/controller/method/args

My goal here is to not show 'method' in the URL if it's not necessary.

For example,
www.example.com/contact

instead of
www.example.com/contact/view.

This is OK. I can accomplish this. But problems arise when I want to pass arguments in the URL.

Say I have the URL:
www.example.com/users   <----- this would by default, user the controller 'users' and call default method, 'view'..just list all users.

But say i want to view a user.. John.
www.example.com/users/john

How can I make my script know that 'john' is an argument, and not a method? The only way I can think of this is if I always have a method in the url .. like www.example.com/users/view/username/john

As of now, my script breaks up the URL at / and the first element in the array is is the controller. It calls the controller with the other arguments.

so www.example.com/users/john. The script would do (simplified)

$controller = 'users'

$controller = new $controller('john')

the 'Users' class would then see if 'john' is a method. If it is, call it, if not, then call the default method (view) with john as argument...
but what if I have a method called 'edit' and someone's username is edit? then www.example.com/users/edit would be a problem.

So my guestion to you guy is... how do you deal with this issue?

If you have www.example.com/users/edit, how do you let the script know that 'edit' is someone's username and now a method to call?
Do you pass the method in the url like so www.example.com/users/edit/edit ?

 Or if you have worked with a framework (Zend, cakePHP, Symfony, CodeIgniter, etc), how does the framework handle it?

Ideally, i would like to be able to have www.example.com/users/john instead of www.example.com/users/view/id/john

I can not figure this out...

<?php
include 'include/config.php';

$sql = mysql_query(" SELECT * FROM logos ");
while($row = mysql_fetch_assoc($sql)) 
{
echo $row['image'];
echo "<br />";
}

?>

now that is printing a nice list

now how can I just split it into two columns?

I'm trying to read in a file which is essentially a csv.  (I have a couple of books and am a n00b faffing with sessions/cookies etc and am trying to set up an app for a local forum I'm involved with...)

I originally tried fgetcsv and also reading the file in line by line (via fgets/explode) and for the most part it works.  However some of the entries have a '<' character within them and whenever the script hits a line with one of these it screws up and truncates the line.

I presume the '<' is attempting to redirect the data somewhere(?), but have found no way of being able to read this in whole as of yet and I dont really want to resort to processing each line character by character...

An example line would be:

3p!<ph4il,Fabulous Diamond Eyes,Lizzies,Div 3C

I welcome some advice to put me out of my misery on the matter  

So I have a list of events happening on certain dates

Date
event
event
event
Date
event
event
Date
event
Date
event
event
i.e the number of events per date change. The whole list is stored in an array called $matches. Depending on the formatting of the event or date tells the computer (or me) whether it is an event or a date. So the locations of the dates within $matches[] are stored in the array $dayKeys, and the position of the events within $matches[] is stored in the array $tournKeys.
I am trying to print the list back out in the correct order.
Code: [Select]
foreach($dayKeys as $a => $b)
{
$c = $a;
foreach($tournKeys as $c => $d)
{
if (($tournKeys[$c] > $dayKeys[$a]) && ($tournKeys[$c] < $dayKeys[$a+1])) //if both are true print the events until it is required to print the next date as oppposed to an event.
{
......print the data from matches.....
}
}
}
I have tried to simplify the above loops as much as possible for this thread. My point is though, that when I am at the end of $dayKeys,  $dayKeys[$a+1] generates an error, because there are no more $dayKeys.
So my question is how should I rephrase that if condition so that I dont have to look to see whether The next thing to print is a date or an event by looking at the next $dayKeys value?

I have to take over somebody else's project. So I have the combination of being a beginner, not understanding their code well, and not experienced with arrays. I'm in over my head.

I have an array passed to the page, that would be something like this:

Array ( [215] => [213] => 1 [212] => 2 [214] => )
the user chose 1 person in 213, and 2 people in 212

 and I basically need to break it apart to do math like this:

(#people x cost of 213 = totalcostA )  +  (# people x cost of 212 = totalcostB)   =  total

The broken down data goes into the database, and the total is used for the cart.

I've taken suggestions and gotten to this jumbled mess:
Code: [Select]
$ids = $_POST['workshop_id'];
print_r($_POST['participantqty']);
// the above shows the arrays  are sending to this page and printing correctly: Array ( [215] => [213] => 1 [212] => 2 [214] => )
foreach ($_POST['workshop_id'] as $id){
   $qty = $_POST['participatqty'][$id];
}

if(sizeof($_POST['workshop_id'])) {
// loop through array
$number = count($ids);
for ($i=0; $i<=$number; $i++)
{
    // store a single item number and description in local variables
    $itno = $ids[$i];
    $qty_insert = $qty[$i];

   

$query_insertItemWorkshop = "INSERT INTO tbl_registration_workshop (registration_id, workshop_id, regworkshop_qty) VALUES ('$reg_id', '$itno', '$qty_insert')";
$dberror = "";
$ret = mysql_query($query_insertItemWorkshop);
$query_selectAllItems_events = 'SELECT * FROM tbl_workshops where workshop_id = '.$itno;
@$result_all_events = mysql_query($query_selectAllItems_events);
@$numRows_all_events = mysql_num_rows($result_all_events);
@$num=mysql_num_rows($result_all_events);
@$z_row = mysql_fetch_array($result_all_events);
// I want the below to work, but it won't until I can figure out how to break it all down.
$qty_total=$qty_insert*$z_row['workshop_price'];
$total = $total + $qty_total;

   
    if ($ids[$i] <> '') {

// I want the info to also appear below, but  can't until I figure out how to break them down.

    echo $total_students;
echo "<tr><td valign=top><b>Description:</b> ". $z_row['workshop_title'] ."</td><td align='right' colspan='2' width=300 valign=top>" . $qty_insert . " at ". $z_row['workshop_price'] ." each: &nbsp;</td><td valign=top> $". $qty_total ."</td></tr>";

Hi Guys, I'm trying to build a form which includes a file field. The idea is that it will upload the file and then email it as an attachment, I couldnt' figure that out at all so I thought I'd go with uploading the file and including a link to it in the email, however that isn't working either and I don't understand why... i'm not getting any error messages and the upload folder is set to 777.

if (($_FILES["file"]["size"] < 20000))
  {
  if ($_FILES["file"]["error"] > 0)
    {
    echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
    }
  else
    {
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "upload/" . $_FILES["file"]["name"]);
      $fileLink = $siteroot. "/upload/" . $_FILES["file"]["name"];
      }
  }
else
  {
  echo "Invalid file";
  }
$to = str_replace('info', 'sales', $sc_email);  
$subject = "Quotation request from website";
$body = "From: ".$_POST['first_name']." ".$_POST['last_name']."\n";
if ($_POST['job_title']) {
$body .= "(".$_POST['job_title']." at ".$_POST['your_company'].")\n";
}
$body .= "E-Mail: ".$_POST['your_email']."\n";
$body .= "Telephone: ".$_POST['your_telephone']."\n";
$body .= "Address:\n ".$_POST['your_address']." ,".$_POST['your_country']."\n\n";
$body .= "Project: ".$_POST['project_details']."\n";
$body .= "Translate to: ".$_POST['lang_target']." from ".$_POST['lang_source']."\n";
$body .= "by: ".$_POST['project_deadline'];
$body .= "The text: ".$_POST['text_to_translate'];
$body .= "Link to attachment: <a href=".$fileLink."> Link </a>";

Just helping me to figure out this would be enough but if anyone has a solution to the emailng as attatchment thing that would be even better. I've looked at a few tutorials but they seem a bit confusing.

Thanks in advance.

I suck with arrays, there I said it .  With that said, hopefully someone can help me here. I have two multi-dimensional arrays called $allteams and $chosenteams (the contents of which are listed below).  I simply want to compare them and make a new array of the items that are in the first array ($allteams) but NOT in the second array ($chosenteams). NOTE: I tried to use array_diff() but couldn't get it to work since they are multidimensional...

FYI, I'm also confused why the info appears to be listed twice but I think that just has to do with associative vs. numeric arrays (i.e. I think I just need to specify one and the amount info would be cut in half), but I'll research this more on my own as it seems like it has to be easy to find

$allteams

Array ( => Array ( => 1 [teamid] => 1 [1] => Philadelphia [teamcity] => Philadelphia [2] => Eagles [teamname] => Eagles ) [1] => Array ( => 2 [teamid] => 2 [1] => Dallas [teamcity] => Dallas [2] => Cowboys [teamname] => Cowboys ) [2] => Array ( => 3 [teamid] => 3 [1] => New York [teamcity] => New York [2] => Giants [teamname] => Giants ) [3] => Array ( => 4 [teamid] => 4 [1] => Washington [teamcity] => Washington [2] => Redskins [teamname] => Redskins ) [4] => Array ( => 5 [teamid] => 5 [1] => Detroit [teamcity] => Detroit [2] => Lions [teamname] => Lions ) [5] => Array ( => 6 [teamid] => 6 [1] => Minnesota [teamcity] => Minnesota [2] => Vikings [teamname] => Vikings ) [6] => Array ( => 7 [teamid] => 7 [1] => Green Bay [teamcity] => Green Bay [2] => Packers [teamname] => Packers ) [7] => Array ( => 8 [teamid] => 8 [1] => Chicago [teamcity] => Chicago [2] => Bears [teamname] => Bears ) [8] => Array ( => 9 [teamid] => 9 [1] => Tampa Bay [teamcity] => Tampa Bay [2] => Buccs [teamname] => Buccs ) [9] => Array ( => 10 [teamid] => 10 [1] => New Orleans [teamcity] => New Orleans [2] => Saints [teamname] => Saints ) [10] => Array ( => 11 [teamid] => 11 [1] => Carolina [teamcity] => Carolina [2] => Panthers [teamname] => Panthers ) [11] => Array ( => 12 [teamid] => 12 [1] => Atlanta [teamcity] => Atlanta [2] => Falcons [teamname] => Falcons ) [12] => Array ( => 13 [teamid] => 13 [1] => Seattle [teamcity] => Seattle [2] => Seahawks [teamname] => Seahawks ) [13] => Array ( => 14 [teamid] => 14 [1] => San Francisco [teamcity] => San Francisco [2] => 49ers [teamname] => 49ers ) [14] => Array ( => 15 [teamid] => 15 [1] => St. Louis [teamcity] => St. Louis [2] => Rams [teamname] => Rams ) [15] => Array ( => 16 [teamid] => 16 [1] => Arizona [teamcity] => Arizona [2] => Cardinals [teamname] => Cardinals ) [16] => Array ( => 17 [teamid] => 17 [1] => New York [teamcity] => New York [2] => Jets [teamname] => Jets ) [17] => Array ( => 18 [teamid] => 18 [1] => Miami [teamcity] => Miami [2] => Dolphins [teamname] => Dolphins ) [18] => Array ( => 19 [teamid] => 19 [1] => Buffalo [teamcity] => Buffalo [2] => Bills [teamname] => Bills ) [19] => Array ( => 20 [teamid] => 20 [1] => New England [teamcity] => New England [2] => Patriots [teamname] => Patriots ) [20] => Array ( => 21 [teamid] => 21 [1] => Baltimore [teamcity] => Baltimore [2] => Ravens [teamname] => Ravens ) [21] => Array ( => 22 [teamid] => 22 [1] => Cincinnati [teamcity] => Cincinnati [2] => Bengals [teamname] => Bengals ) [22] => Array ( => 23 [teamid] => 23 [1] => Pittsburgh [teamcity] => Pittsburgh [2] => Steelers [teamname] => Steelers ) [23] => Array ( => 24 [teamid] => 24 [1] => Cleveland [teamcity] => Cleveland [2] => Browns [teamname] => Browns ) [24] => Array ( => 25 [teamid] => 25 [1] => Houston [teamcity] => Houston [2] => Texans [teamname] => Texans ) [25] => Array ( => 26 [teamid] => 26 [1] => Tennessee [teamcity] => Tennessee [2] => Titans [teamname] => Titans ) [26] => Array ( => 27 [teamid] => 27 [1] => Jacksonville [teamcity] => Jacksonville [2] => Jaguars [teamname] => Jaguars ) [27] => Array ( => 28 [teamid] => 28 [1] => Indianapolis [teamcity] => Indianapolis [2] => Colts [teamname] => Colts ) [28] => Array ( => 29 [teamid] => 29 [1] => Denver [teamcity] => Denver [2] => Broncos [teamname] => Broncos ) [29] => Array ( => 30 [teamid] => 30 [1] => Kansas City [teamcity] => Kansas City [2] => Chiefs [teamname] => Chiefs ) [30] => Array ( => 31 [teamid] => 31 [1] => Oakland [teamcity] => Oakland [2] => Raiders [teamname] => Raiders ) [31] => Array ( => 32 [teamid] => 32 [1] => San Diego [teamcity] => San Diego [2] => Chargers [teamname] => Chargers ) )

$chosenteams

Array ( => Array ( => 2 [teamid] => 2 [1] => Dallas [teamcity] => Dallas [2] => Cowboys [teamname] => Cowboys ) [1] => Array ( => 3 [teamid] => 3 [1] => New York [teamcity] => New York [2] => Giants [teamname] => Giants ) )

Again, I just want to compare those two multi-dimensional arrays and end up with another array that only has the items that are in the first but NOT in the second.   So now I'm trying to do it the way below using simply "array_push" Code: [Select]
$remainingteams = array();
foreach($allteams as $teamname=> $value) {
if (in_array($teamname, $chosenteams)) {
} else {
array_push($remainingteams,$teamname);
}
}
My end result based on the way the arrays are in this example should be...

$remainingteams  (really the only difference is that the Cowboys and Giants info is gone)

Array ( => Array ( => 1 [teamid] => 1 [1] => Philadelphia [teamcity] => Philadelphia [2] => Eagles [teamname] => Eagles ) [3] => Array ( => 4 [teamid] => 4 [1] => Washington [teamcity] => Washington [2] => Redskins [teamname] => Redskins ) [4] => Array ( => 5 [teamid] => 5 [1] => Detroit [teamcity] => Detroit [2] => Lions [teamname] => Lions ) [5] => Array ( => 6 [teamid] => 6 [1] => Minnesota [teamcity] => Minnesota [2] => Vikings [teamname] => Vikings ) [6] => Array ( => 7 [teamid] => 7 [1] => Green Bay [teamcity] => Green Bay [2] => Packers [teamname] => Packers ) [7] => Array ( => 8 [teamid] => 8 [1] => Chicago [teamcity] => Chicago [2] => Bears [teamname] => Bears ) [8] => Array ( => 9 [teamid] => 9 [1] => Tampa Bay [teamcity] => Tampa Bay [2] => Buccs [teamname] => Buccs ) [9] => Array ( => 10 [teamid] => 10 [1] => New Orleans [teamcity] => New Orleans [2] => Saints [teamname] => Saints ) [10] => Array ( => 11 [teamid] => 11 [1] => Carolina [teamcity] => Carolina [2] => Panthers [teamname] => Panthers ) [11] => Array ( => 12 [teamid] => 12 [1] => Atlanta [teamcity] => Atlanta [2] => Falcons [teamname] => Falcons ) [12] => Array ( => 13 [teamid] => 13 [1] => Seattle [teamcity] => Seattle [2] => Seahawks [teamname] => Seahawks ) [13] => Array ( => 14 [teamid] => 14 [1] => San Francisco [teamcity] => San Francisco [2] => 49ers [teamname] => 49ers ) [14] => Array ( => 15 [teamid] => 15 [1] => St. Louis [teamcity] => St. Louis [2] => Rams [teamname] => Rams ) [15] => Array ( => 16 [teamid] => 16 [1] => Arizona [teamcity] => Arizona [2] => Cardinals [teamname] => Cardinals ) [16] => Array ( => 17 [teamid] => 17 [1] => New York [teamcity] => New York [2] => Jets [teamname] => Jets ) [17] => Array ( => 18 [teamid] => 18 [1] => Miami [teamcity] => Miami [2] => Dolphins [teamname] => Dolphins ) [18] => Array ( => 19 [teamid] => 19 [1] => Buffalo [teamcity] => Buffalo [2] => Bills [teamname] => Bills ) [19] => Array ( => 20 [teamid] => 20 [1] => New England [teamcity] => New England [2] => Patriots [teamname] => Patriots ) [20] => Array ( => 21 [teamid] => 21 [1] => Baltimore [teamcity] => Baltimore [2] => Ravens [teamname] => Ravens ) [21] => Array ( => 22 [teamid] => 22 [1] => Cincinnati [teamcity] => Cincinnati [2] => Bengals [teamname] => Bengals ) [22] => Array ( => 23 [teamid] => 23 [1] => Pittsburgh [teamcity] => Pittsburgh [2] => Steelers [teamname] => Steelers ) [23] => Array ( => 24 [teamid] => 24 [1] => Cleveland [teamcity] => Cleveland [2] => Browns [teamname] => Browns ) [24] => Array ( => 25 [teamid] => 25 [1] => Houston [teamcity] => Houston [2] => Texans [teamname] => Texans ) [25] => Array ( => 26 [teamid] => 26 [1] => Tennessee [teamcity] => Tennessee [2] => Titans [teamname] => Titans ) [26] => Array ( => 27 [teamid] => 27 [1] => Jacksonville [teamcity] => Jacksonville [2] => Jaguars [teamname] => Jaguars ) [27] => Array ( => 28 [teamid] => 28 [1] => Indianapolis [teamcity] => Indianapolis [2] => Colts [teamname] => Colts ) [28] => Array ( => 29 [teamid] => 29 [1] => Denver [teamcity] => Denver [2] => Broncos [teamname] => Broncos ) [29] => Array ( => 30 [teamid] => 30 [1] => Kansas City [teamcity] => Kansas City [2] => Chiefs [teamname] => Chiefs ) [30] => Array ( => 31 [teamid] => 31 [1] => Oakland [teamcity] => Oakland [2] => Raiders [teamname] => Raiders ) [31] => Array ( => 32 [teamid] => 32 [1] => San Diego [teamcity] => San Diego [2] => Chargers [teamname] => Chargers ) )

Can anyone help me figure this out?  i've been trying for hours (I know, that's pathetic )

How to write 2 "if" statements together?

if($userResult==$myResult) and ($userResult<0)
{

Hey Guys,

I am creating an array and I have a need to put a if statement inside it. Is this even possible?

Here is where I am at so far, its just not working.


 function load_permissions($gid)
    {
     $data = array();
     $this->db->select('`groups`.`name` AS `permission_name`, `permissions`.``');
$query = $this->db->get('`groups`,`permissions`');
if ($query->num_rows() > 0){
foreach ($query->result_array() as $row){
  $data[] = array(
  "name" => $row['permission_name'],
  "read" => if($row['level'] >= 1)
   { 
    img("img/true.gif")
   } else { 
    img("img/false.gif")
   },
 
  );
  }
 }
 
 $query->free_result();
return $data;



Thanks,
Peter

I am trying to write an if statement that checks to make sure the information put in the text box is an imbedded file. Does anyone know how to do that?

Anything wrong with this because I got a parse error ONLY after adding to create this.

<?php
                            $visible = array('Yes', 'No');
                            foreach($visible as $visible):
                            $visible2 = array('yes', 'no');
                            foreach($visible2 as $visible2):
                        ?>      

Hey guys,

is there any way to have a LIKE condition on an IF statement?
Something like:
Code: [Select]
if $GET_['WTV'] LIKE %LOVE% {
$category=romance
Any clues?
Thanks in advance.

Hi Guys,
Newbie trying to understand PHP conditionals.
In the below Code: [Select]
[[*id]] is a global variable which equates to my current page id so it could have the value of 1 for example. I tested it using echo and the correct values pass to it in the cms I'm using. What I cant achieve is for the conditionals below to work correctly so perhaps you can see a syntax error or show me away of doing the same using an array or something perhaps? THANKS

Code: [Select]
<?php
$id='[[*id]]'

if ($id=="1" || $id=="2")
  echo "we are in 1 or 2";
elseif ($id=="3" || $id=="4")
  echo "we are in 3 or 4";
else
  echo "not in 1 to 4";
?>

Hello, I am learning PDO SQL statements, I have mananged to connect using PDO:


Code: [Select]
try
{
$this->link = $dbh = new PDO('mysql:host='.$this->dbhost.';dbname='.$this->dbname.'', $this->dbuser, $this->dbpass);
}
catch (PDOException $e)
{
echo 'Connection failed: ' . $e->getMessage();
}


I am not getting any error, so I guess that is a good start. I then tried the PDO SQL statement out. My old mySQL query is commented out in the


Code: [Select]
if (isset($_SESSION['id']) && isset($_SESSION['password']))
{
$_SESSION['id'] = ( isset( $_SESSION['id'] ) ) ? $_SESSION['id'] : FALSE;
$_SESSION['password'] = ( isset( $_SESSION['password'] ) ) ? $_SESSION['password'] : FALSE;


//$logged = mysql_query("SELECT * FROM `db_members` WHERE `id`='".$_SESSION['id']."' AND `password` = '".$_SESSION['password']."'");
//$logged = mysql_fetch_array( $logged );

// the new pdo statement
$ff = $dbh->prepare('SELECT * FROM db_members WHERE id = '.$_SESSION['id'].' AND password = '.$_SESSION['password'].'');

$ff->execute();
$logged = $ff->fetchAll();

echo $logged['username'];
}

I am trying to assign the session to logged variable. So all I am asking is go into db_members and check the id and password that is the same as session id and password and collect the rows data such as username.

My login script and everything works perfectly, even session id and password is valid when echo'd but I cannot assign it to the logged variable like my old sql statements.


Code: [Select]
$logged = mysql_query("SELECT * FROM `db_members` WHERE `id`='".$_SESSION['id']."' AND `password` = '".$_SESSION['password']."'");
$logged = mysql_fetch_array( $logged );

I used other PDO statements and it works perfectly but I just don't understand why this is not working.... can I please get some help if you have any solution to this?