PHP - Foreach Only Analyses Array At The Start?

I got this already, my problem is I can't get all values of my $prog array because of '=>' operator.
Is there any way to get rid of this?

Code: [Select]
foreach ($_POST['course'] as $val =>$course)
{
$prog = $_POST['program'][$val] ;
echo $course;
echo $prog;
}

I have the following foreach statement that gets the error msg's from the array called errors. However for the last key in the array, i would not like the <br /> to be echo'd out. How can I achieve that?

Code: [Select]

foreach ($errors as $msg) {

echo $msg;

echo "<br />";

}

Hello gurus,

I've been pounding my head against the wall on this one.  It must be something simple I'm missing.  I have a text field that posts ($_POST['case_ids']) a comma separated value such as 10067,10076  When I use explode to break it up it should make it an array.  However when I use it in a foreach loop I get an invalid argument error.  If I do a check for is_array() it fails the check. 

If I print the array I get:
Code: [Select]
Array ( [0] => 10067 [1] => 10076 )
So I thought maybe I get the error because the individual array elements don't have commas between them so I wrote this to put commas in between each element except the last:
Code: [Select]
$cases = array();
$numItems = count($case_ids);//get count of array
$i = 0;//initialize counter
foreach($case_ids as $key => $value){
if($i+1 != $numItems) {
$cases[$key] = $value.',';
}else{
$cases[$key] = $value;
}//end if $i+1
$i++;
}
However this new array still gets the invalid argument error.  Are these not valid arrays?

Any help would be greatly appreciated.

Thanks in advance,
Twitch

I've never worked with multidimensional arrays. I have developed a calendar app. Right now i have it query the db for every day. So potentially 31 queries. Two part question: Would it be better(more "optimized") to query the db once to get all the events in that month for a certain calendar and put the rows into a multidimensional array and use php to determine which events to put in what days? And if that's the case, how do you cycle through the first key in an array like the following? I'm not even sure if this is the best way to structure the array. The number's represent the id number in the db and i will need to cycle through these.

Code: [Select]
$events = array
  (
  "1"=>array
  (
  "Bob's Birthday",
  "2011-05-24 16:30:0",
  "2011-05-25 12:00:00",
  ),
  "2"=>array
  (
   "Day Off",
  "2011-05-27 08:30:0",
  "2011-05-28 17:00:00",
  ),
  "3"=>array
  (
   "Pay rent",
  "2011-06-01 08:00:0",
  "2011-05-01 17:00:00",
  )
  );


//something like this...maybe?

foreach($events['first_key'] as $key => $value)
{
   // not a clue how to reference the contents
}

I want to create a loop foreach  [@attributes] I seem to be stuck and cant figure it out.  any info would be helpful. Thanks!

Code: [Select]
Array
(
    [0] => SimpleXMLElement Object
        (
            [@attributes] => Array
                (
                    [ID] => 5760861
                )

        )

    [1] => SimpleXMLElement Object
        (
            [@attributes] => Array
                (
                    [ID] => 5335615
                )

        )

    [2] => SimpleXMLElement Object
        (
            [@attributes] => Array
                (
                    [ID] => 6080572
                )

        )

    [3] => SimpleXMLElement Object
        (
            [@attributes] => Array
                (
                    [ID] => 5178898
                )

        )

)

Hi everybody

I am new to arrays, and loops pretty much, so please dont be mean!

I am trying to turn a single upload form into a multiple upload form.  My logic is I need to use arrays and loop the code for uploading the data from the form to the database (for each of these files, create a thumbnail, resize and rename original, move to folder, create path, and insert all that information into the db)

But I have no idea how

I've got this in the form (now) ....
<pick an album to put the files into>
<input type="file" name="image[]" >
<input type="file" name="image[]" >

and this is the code for the whole upload. It worked for single uploads ... but I'm now at a loss ...

The code is abit messy, sorry.  I'm fairly sure I need a foreach loop, but I dont know where to put it

Really Really hoping you can help. Many thanks in advance

Code: [Select]
<?php 
ini_set("memory_limit","120M");
include ("DBCONNECT");
include ("CHECK ADMIN");
if ($admin != 1)
{
header("location:./login.php");
}
else {
define ("MAX_SIZE","5000"); 
define ("WIDTH","150"); 
define ("HEIGHT","100"); 
function make_thumb($img_name,$filename,$new_w,$new_h)
{
$ext=getExtension($img_name);
if(!strcmp("jpg",$ext) || !strcmp("jpeg",$ext))
$src_img=imagecreatefromjpeg($img_name);
if(!strcmp("png",$ext))
$src_img=imagecreatefrompng($img_name);
$old_x=imageSX($src_img);
$old_y=imageSY($src_img);
$ratio1=$old_x/$new_w;
$ratio2=$old_y/$new_h;
if($ratio1>$ratio2) {
$thumb_w=$new_w;
$thumb_h=$old_y/$ratio1;
}
else {
$thumb_h=$new_h;
$thumb_w=$old_x/$ratio2;
}
$dst_img=ImageCreateTrueColor($thumb_w,$thumb_h);

Imagecopyresampled($dst_img,$src_img,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y); 
if(!strcmp("png",$ext))
imagepng($dst_img,$filename); 
else
imagejpeg($dst_img,$filename); 
imagedestroy($dst_img); 
imagedestroy($src_img); 
}
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) { return ""; }
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
$errors=0;
if(isset($_POST['submit1']) && !$errors)
{
$sqlalbum="INSERT INTO album (album_name) VALUES ('$_POST[newalbumname]')";
mysql_query($sqlalbum) or die ('Error, album_query failed : ' . mysql_error());
}

If(isset($_POST['Submit']))
{
$image=$_FILES['image']['name'];
// if it is not empty
if ($image) 
{
$filename = stripslashes($_FILES['image']['name']);

$extension = getExtension($filename);
$extension = strtolower($extension);

if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png")) 
{
echo '<h1>Unknown extension! You can only upload jpg, jpeg and png files</h1>';
$errors=1;
}
else
{
$size=getimagesize($_FILES['image']['tmp_name']);
$sizekb=filesize($_FILES['image']['tmp_name']);

//compare the size with the maxim size we defined and print error if bigger
if ($sizekb > MAX_SIZE*1024)
{
echo '<h1>You have exceeded the size limit!</h1>';
$errors=1;
}
$image_name=time().'.'.$extension;
$newname="uploads/".$image_name;
$copied = copy($_FILES['image']['tmp_name'], $newname);
if (!$copied) 
{
echo '<h1>Copy unsuccessfull!</h1>';
$errors=1;
}
else
{
$thumb_name='uploads/thumbs/thumb_'.$image_name;
$thumb=make_thumb($newname,$thumb_name,WIDTH,HEIGHT);
}} }}

If(isset($_POST['Submit']) && !$errors) 
{
$album = $_POST['album'];
$query = "INSERT INTO upload (name, path, album_id, thumbpath ) ".
"VALUES ('$image_name', '$newname' , '$album', '$thumb_name')";

mysql_query($query) or die('Error, query failed : ' . mysql_error());

echo "<h1>Thumbnail created Successfully!</h1>";
echo '<img src="'.$thumb_name.'">';
}

?>

I am a beginner, so forgive me all to whom this is trivial...

I have an array, generated from simpleXML object, trying to parse...  The array is not symmetrical & I am having trouble finding the right code to make it work.  Help & comments are welcomed..

Here is the raw array with print_r:
Code: [Select]
Array
(
    [Area] => Array
        (
            [0] => Array
                (
                    [Name] => Basement
                    [Id] => 1
                    [Room] => Array
                        (
                            [0] => Array
                                (
                                    [Name] => Equipment
                                    [Id] => 1
                                )

                            [1] => Array
                                (
                                    [Name] => Theater
                                    [Id] => 9
                                )

                            [2] => Array
                                (
                                    [Name] => Wine Cellar
                                    [Id] => 10
                                )

                        )

                )

            [1] => Array
                (
                    [Name] => 1st Floor
                    [Id] => 2
                    [Room] => Array
                        (
                            [0] => Array
                                (
                                    [Name] => Kitchen
                                    [Id] => 2
                                )

                            [1] => Array
                                (
                                    [Name] => Main Hall
                                    [Id] => 4
                                )

                            [2] => Array
                                (
                                    [Name] => Foyer
                                    [Id] => 8
                                )

                            [3] => Array
                                (
                                    [Name] => Stone Room
                                    [Id] => 14
                                )

                            [4] => Array
                                (
                                    [Name] => Garage Foyer
                                    [Id] => 16
                                )

                            [5] => Array
                                (
                                    [Name] => Dining Room
                                    [Id] => 17
                                )

                            [6] => Array
                                (
                                    [Name] => Living Room
                                    [Id] => 18
                                )

                            [7] => Array
                                (
                                    [Name] => Hearth Room
                                    [Id] => 19
                                )

                            [8] => Array
                                (
                                    [Name] => Office
                                    [Id] => 20
                                )

                            [9] => Array
                                (
                                    [Name] => Powder Room
                                    [Id] => 21
                                )

                        )

                )

            [2] => Array
                (
                    [Name] => 2nd Floor
                    [Id] => 3
                    [Room] => Array
                        (
                            [0] => Array
                                (
                                    [Name] => Landing
                                    [Id] => 7
                                )

                            [1] => Array
                                (
                                    [Name] => Master Bedroom
                                    [Id] => 11
                                )

                            [2] => Array
                                (
                                    [Name] => Nannys Room
                                    [Id] => 13
                                )

                            [3] => Array
                                (
                                    [Name] => East Kids Bed
                                    [Id] => 27
                                )

                            [4] => Array
                                (
                                    [Name] => West Kids Bed
                                    [Id] => 28
                                )

                            [5] => Array
                                (
                                    [Name] => Kids Bath
                                    [Id] => 29
                                )

                            [6] => Array
                                (
                                    [Name] => Robs Closet
                                    [Id] => 31
                                )

                            [7] => Array
                                (
                                    [Name] => Kelli's Office
                                    [Id] => 32
                                )

                        )

                )

            [3] => Array
                (
                    [Name] => 3rd Floor
                    [Id] => 7
                    [Room] => Array
                        (
                            [Name] => Bonus room
                            [Id] => 5
                        )

                )

            [4] => Array
                (
                    [Name] => Outside Areas
                    [Id] => 8
                    [Room] => Array
                        (
                            [0] => Array
                                (
                                    [Name] => Veranda
                                    [Id] => 22
                                )

                            [1] => Array
                                (
                                    [Name] => Back Outdoor
                                    [Id] => 23
                                )

                            [2] => Array
                                (
                                    [Name] => Christmas Lights
                                    [Id] => 33
                                )

                            [3] => Array
                                (
                                    [Name] => Front Outdoor
                                    [Id] => 34
                                )

                            [4] => Array
                                (
                                    [Name] => Garage
                                    [Id] => 35
                                )

                            [5] => Array
                                (
                                    [Name] => Poolhouse Kitchen
                                    [Id] => 24
                                )

                            [6] => Array
                                (
                                    [Name] => Poolhouse Utility
                                    [Id] => 25
                                )

                        )

                )

        )

)
Here is the code:
Code: [Select]
foreach($xml2['Area'] as $v){
echo $v['Name'],' <br>';
foreach($v['Room'] as $v2){
echo '  ',$v2['Name'],' <br>';
}
}
Here is the result:
Code: [Select]
Basement
  Equipment
  Theater
  Wine Cellar
1st Floor
  Kitchen
  Main Hall
  Foyer
  Stone Room
  Garage Foyer
  Dining Room
  Living Room
  Hearth Room
  Office
  Powder Room
2nd Floor
  Landing
  Master Bedroom
  Nannys Room
  East Kids Bed
  West Kids Bed
  Kids Bath
  Robs Closet
  Kelli's Office
3rd Floor
  B
  5
Outside Areas
  Veranda
  Back Outdoor
  Christmas Lights
  Front Outdoor
  Garage
  Poolhouse Kitchen
  Poolhouse Utility
The problem lies with the "3rd Floor" which should contain "Bonus Room" as the room.  I know that this is the only element that has no "Rooms" array, but I can't figure out how to code the trap for it.  With this data, the condition could exist anywhere, not just my example, but I am stumped with the non symmetrical array that I am unfamiliar with.  Any help?  Thanks. --akaweed

I have this code:

Code: [Select]
$data = array_combine($data4, $addfinal);

foreach( $data as $key => $value){
?>

<tr>
<td><?php echo $key;?></td><td><?php echo $value; ?></td><td></td><td>Safeco</td><td><a href="ajax/map.php?address=<?php echo urlencode($value);?>">Map It</a></td>
</tr>
<?php
}
That uses an array that looks like this (but longer):
Code: [Select]
Array ( [Business Name 1] =>
Business Address 1 [Business Name 2] =>
Business Address 2 [Business Name 3] =>
Business Address 3)
But it skips every other array entry? Any ideas? So its displaying Business Name 1, Business Name 3, etc.

I have six rows of text boxes for users to enter into. The fields are named like

ROW1: invqty, invpart, invdesc, invlist, invprice, parttotal
ROW2: invqty02, invpart02, invdesc02, invlist02, invprice02, parttotal02
ROW3: ...
ROW4: ...

How can I add these to variables so $invoiceqty = invqty, invqty2, invqty3, etc. $invoicepart = invpart, invpart02, invpart03, etc.

and then loop through them, inserting all rows into a table until all data is INSERTED

Hello all..

This one's sort of difficult to explain, but yet it should be a pretty simple solution..

What I'm trying to do is loop through an array that has either single event id's or a group of event id's, and run a condition on the change of id's while looping.. Sort of grouping each set if unique id's within a new event section..

Here's sort of a test code I put together:

Code: [Select]
<?php
$result = array(
array('event_id' => 70),
array('event_id' => 70),
array('event_id' => 70),
array('event_id' => 95),
array('event_id' => 96),
array('event_id' => 97),
array('event_id' => 98),
array('event_id' => 99),
array('event_id' => 145),
array('event_id' => 145),
array('event_id' => 145),
array('event_id' => 145),
array('event_id' => 166),
array('event_id' => 166),
array('event_id' => 177),
array('event_id' => 200),
array('event_id' => 200),
array('event_id' => 200)
);

$previous_id = '';
foreach($result as $row){

if ($row['event_id'] != $previous_id) {

echo '<div style="background:#ccc;">New Event</div>';

}

if ($previous_id > 0 && $row['event_id'] != $previous_id) {

echo '<table border="1"><tr><td>'.$row['event_id'].'</td></tr></table>';

$previous_id = '';

} else {

echo $row['event_id'].'<br />';

$previous_id = $row['event_id'];

}

}
?>
It's about half way working, but there are issues when the ids change and they are either single event ids in a row, or multiple same event ids in a row.. I can't think how to set the $previous_id variable properly on each loop..

Well, figured I'd throw it out there and see what happens..

Thanks.. 

I have a simple foreach loop. The array has four rows in it. Really simple. I have confirmed the data in the array with var_dump. For some reason I cannot fathom, the loop is only processing rows 0 and 2 and is not processing 1 and 3.   Here's the code snippet:

<?php
    foreach ($postCals as $key=>$cal){
        var_dump($postCals, $cal, $key);
        echo '<td style="text-align:right;>' . $cal . "</td>";
    }
?>

$postCals has precisely 4 values. Here's the output from this part of the code (in terms of the var_dumps).   array (size=4)
0 => string '2.00000' (length=7)
1 => string '2.00000' (length=7)
2 => string '3.20000' (length=7)
3 => string '4.00000' (length=7)
string '2.00000' (length=7)
int 0
array (size=4)
0 => string '2.00000' (length=7)
1 => string '2.00000' (length=7)
2 => string '3.20000' (length=7)
3 => string '4.00000' (length=7)
string '3.20000' (length=7)
int 2   That's it. I two other foreach loops identical to this and they run fine!   Any ideas?   (misc info:   php: 5.4.7 running on XAMPP/Windows )

I am having a go at writing my own simple gallery.

As the I want to display an image from a folder in a directory of all the images... for example, I have 10 folders each containing images. I want my code to take image 01.jpg out of each folder and display it on my page, so that when I add folders to my main images folder, they will automatically be added to the page... but I only want the last 10 folders to display... so once I have 20 folders, it only shows 10.

I also want the images to be 5 across and then make a new row.

My folders will be numbered in order... 001, 002, 003, etc... and I need them sorted in reverse order, so the folder added last is displayed first.

So... this is where I am at with the code :

Code: [Select]

$dir = "gallery/";

if (is_dir($dir)) {
[color=red]     foreach(array_keys($file) as $n) {[/color]
        if ($n+1 == 5) {
            echo "<td><img src=\"" . $dir . $file . "/01.jpg\" width=\"140px\" height=\"93px\" alt=\"\" /></td></tr><tr>";
        }
elseif ($n+1 > 10) {
echo "";
}
else {
echo "<td><img src=\"" . $dir . $file . "/01.jpg\" width=\"140px\" height=\"93px\" alt=\"\" /></td>";
}
        closedir($dh);
    }
}
For some reason, I am getting the following error on the page :

Warning: First argument to array_keys() should be an array in /path/to/gallery.php on line 8

Warning: Invalid argument supplied for foreach() in /path/to/gallery.php on line 8

line 8 is the one in red above.

So... I have a couple of questions...

1. What have I done wrong so far? I cannot see it 
2. How would I then go about putting the galleries in reverse order? I know it must be rsort, but not to sure if I need to do this first or after... ?

Any help greatly appreciated, and I would also be greatful f an idiot's explanation, as I am really trying to understand all this! 

I'm getting there... slowly! 

Hi brains... I must be missing some core concept here that I hope someone can set me straight on..

I have a database query that returns say 8 rows. Here's how I know...

$link6_result10 = mysql_query($link6_sql10) or die("Link6 SQL10 Failed: Function drawInventory: " . mysql_error());
        $link6_rows10 = mysql_num_rows($link6_result10);
        $link6_array10 = mysql_fetch_array($link6_result10, MYSQLI_ASSOC);
        echo "You have $link6_rows10 items in your inventory."; <<---- returns 8


So why in the world does this not work??? What is the flaw in my logic?

$srchStr = null;
    foreach ($link6_array10 as $sn) {
    $srchStr .= " SerialNumber = '$sn' OR";
     echo "SN is $sn ";
     }

The only echo output of the foreach function is "SN is 12345" Not the 8 rows of content that I would expect. isn't this how foreach loops should work? Why do I not see "SN is 12345 SN is 23456 SN is 34567 etc..."????? I'm confused.

Thanks guys for any help.

I want to create an array from a file with this structure

TITLE1, HEADER1, key11, key12, key13, key14
TITLE2, HEADER2, key21, key22, key23, key24
.
.
.

How I can get a foreach with these elements:

$title="TITLE"
$header="HEADER"
$key="(one random key)"

If needed, I can change the file structure too.

I'm still pretty new to php and have an issue i'm trying to solve, I have the following two arrays    The first one is contains product id's and the quantity ordered 

Array
(
    [35659] => 1
    [35699] => 1
    [35735] => 2
)

The second one contains warehouse locations that stock the product and the quantity they have available 

Array
(
    [35659] => Array
        (
            [9] => 10
            [114] => 1
            [126] => 0
        )

    [35699] => Array
        (
            [9] => 8
            [114] => 0
            [126] => 5
        )

    [35735] => Array
        (
            [9] => 10
            [114] => 0
            [126] => 0
        )

)

So what I am trying to do is loop through and add to an array each warehouse that meets the quantity of the order here is my code: 

$stockrequired = array('35659' => '1', '35699' => '1', '35735' => '2');

$instock = array();
foreach ($locations as $location) {
    foreach($stockrequired as $id => $qty){
        if($stockavailable[$id][$location] >= $qty){
            $instock[$id] = $location;
        }
    }
}

print_r($instock);

However this produces the following which is the last warehouse that meets the quantity. 

Array
(
    [35659] => 114
    [35699] => 126
    [35735] => 9
)

What I need is all the warehouses the meet the quantity for each product e.g. my desired outcome will be below. I'm guessing my loop is getting reset or something? Any help would be appreciated. 

Array
(
    [35659] => 9
    [35659] => 114

    [35659] => 9
    [35699] => 126

    [35735] => 9
)