[RESOLVED] Combining Values Outside for()

[Skaype]

<?php
$inum = mysql_num_rows($iquery);

for ($x=1;$x<=$inum;$x++) {

$irow = mysql_fetch_row($iquery);

$image = $image_dir . $irow[2] . ".jpg";
$dimension = getimagesize($image);

?><img src="<?php echo $image_dir . $irow[2] . ".jpg"; ?>" title="<?php echo $irow[1]; ?>" style="padding: 0 5px; width:"<?php echo $dimention[0]; ?>px; height:"<?php echo $dimension[1]; ?>;px" /><?php

}
?>

This code successfully outputs multiple lines as required:

<img src="http://www.example.com/images/jessica-01.jpg" title="Jessica" style="padding: 0 5px; width:879px; height:400px;" />

My problem is that I don't know where OR how to create a bit of code, which will add up all the widths ( dimension[0] ) into a single value. I have looked into count() and a few other things, but nothing sticks up.

Here say I have 4 images, which this code will put next to each other, having a dimension[0] value (width) of 200, 400, 400, 300. How could I get dimension[0] to then create a new variable, "total_width" and make its value 1300?

I hope this makes sense, and I appreciate in advance the assistance of you all.

Skaype

[jeepin81]

put this in your loop:

$dimension = 0;

loop(get info and add){
$dimension+=;
}

echo total $dimension;

That will add up. Not sure if that's what you're looking for?

j

[Skaype]

Umm...

Everytime the loop goes around, $dimension gets its information from the getimagesize command. Everytime the loop goes around the $dimension info is refreshed with the new images dimensions. i need to find a way that i can save each $dimension so at the end of the loop (all images shown) i can then add up all the widths ($dimension[0]) and have one value = alll images widths together.

[bradgrafelman]

Do you want to keep the individual dimensions or just a running total? Simple example of the latter:

for($sum = 0,$i=0; $i<$max; $i++) {
    // blah blah
    $sum += $dimension[0];
}

[Skaype]

Either, so long as at the end of the loop, I have a total of the widths to all the images...

Where would I incorporate that snippet of code? And I notice $max? I don't have a necessary max value or would I just put it at some outrageous number like 100000 ?

[Skaype]

Got it working, but ran into a new problem which I didn't foresee before. Because the for() statement, obviously loops information, the div (which contains all the information) is created before the loop, HOWEVER in that div is where I need the $total_width information... I'm calling for the variable before it's been created.

Anyone know any tricks that would allow this to work?

<div style="width:<?php echo $total_width; ?>px;">

<?php

$inum = mysql_num_rows($iquery);

for ($x=1;$x<=$inum;$x++) {

$irow = mysql_fetch_row($iquery);

$image = $image_dir . $irow[2] . ".jpg";
$dimension = getimagesize($image);

$totalwidth += $dimension[0]; // CREATING VARIABLE AFTER ITS CALLED...

?><img src="<?php echo $image_dir . $irow[2] . ".jpg"; ?>" title="<?php echo $irow[1]; ?>" /><?php

}

?>

[bradgrafelman]

Skaype wrote:

Anyone know any tricks that would allow this to work?

Rather than outputting the HTML inside of the for() loop, store it in a temporary variable.

Then, after the for() loop, output the <div> and the rest of the HTML you stored.

[Skaype]

That makes sense, I just cant figure out how to do it.. I looked at the code for four hours (I'm not a coder if you haven't already figured - haha) and I just cant find a way to do it.

I can do it if I can have two for() statements, but when I do that, it actions the first, and ignored the 2nd... That is the only way I thought it could be done...

One for() statement to get the image width, and save that variable... then another for() statement to do the actual images...

[bradgrafelman]

It's really, really simple...

for($totalwidth=0, $html='', $i=0; $i < $whatever_your_max_var_is; $i++) {
    // blah blah

   $totalwidth += $dimension[0];
   $html .= 'image HTML code here';
}

echo "<div here>\n" . $html;

[Skaype]

Thank-you. I got it working another way, incorporating sessions, but you are right, that is really really simple! haha.

Thank-you for all your help.

Skaype.