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Need help with how to use a for/foreach

Adastra

By Adastra
in PHP Coding Help

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Adastra Member

Adastra

Posted
Posted
Hi guys,

I'm trying to write a small gallery script which gives the possibility to upload a number of 1-10 files at once - first thing the user does is pick the number of files to upload, then he is directed to the upload form(s).

Now my problem is that I don't know how to process the multiple files at once - there are 4 fields for each photo, the file itself, a title, a description and the gallery id. All of that is inserted into a DB after the images have been resized and uploaded - how do I do both of those things for multiple files at once? It must be something with for or foreach, but I have no idea how to use it with multiple files AND multiple fields to be post at once. The affected part is the add action. Any help would be very appreciated :)

This is my file:
[code=php:0]
if ($_POST['action'] == "add") {

foreach () {
//__ photos in dir ablegen _______________________________________
$ul_photo = $_FILES['photo']['tmp_name'];
$src = imagecreatefromjpeg($ul_photo);
list($width,$height) = getimagesize($ul_photo);
$newwidth = 550;
$newheight = ($height/$width)*$newwidth;
$tmp = imagecreatetruecolor($newwidth,$newheight);
imagecopyresampled($tmp,$src,0,0,0,0,$newwidth,$newheight,$width,$height);
$filename = $dirpath.$gal_id."/". $_FILES['photo']['name'];
imagejpeg($tmp,$filename,100);

#__ thumb _________________________________________________________
$ul_thumb = $_FILES['photo']['tmp_name'];
$srcthumb = imagecreatefromjpeg($ul_thumb);
list($widththumb,$heightthumb) = getimagesize($ul_thumb);
$newwidththumb = 100;
$newheightthumb = ($heightthumb/$widththumb)*$newwidththumb;

$src_top = ($src_height / 2) - ($dst_height / 2);
$src_left = ($src_width / 2) - ($dst_width / 2);

$tmpthumb = imagecreatetruecolor($newwidththumb,$newheightthumb);
imagecopyresampled($tmpthumb,$srcthumb,0,0,$src_top,$src_left,$newwidththumb,$newheightthumb,$widththumb,$heightthumb);
$thumbname = $dirpath.$gal_id."/zth_".$titlesuf . $_FILES['photo']['name'];
imagejpeg($tmpthumb,$thumbname,100);
#___________________________________________________________________

imagedestroy($src);
imagedestroy($tmp);
imagedestroy($srcthumb);
imagedestroy($tmpthumb);


$gal = addslashes($_POST['gal_id']);
$photo = $_FILES['photo']['name'];
$title = addslashes($_POST['title']);
$description = addslashes($_POST['description']);

$sql = "INSERT INTO $gal_photos (gal,photo,title,description) VALUES ('$gal','$photo','$title','$description')";
$query = mysql_query($sql) or die("MySQL Error: <br /> {$sql} <br />". mysql_error());
$num = mysql_affected_rows();

if($num > 0) {
echo "<span class='result'>New Photo successfully added!</span>";
echo "<br /><img src='../galleries/".$gal."/zth_".$photo."' />";
} else {
echo "Error: ".mysql_error();
}
} #foreach



} elseif ($_GET['action'] == "listforms") {
?>
<strong>Post New Photos</strong>
<br />
<br />
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" enctype="multipart/form-data">
<input type="hidden" name="MAX_FILE_SIZE" value="649760" />

<?
for ($x=0;$x<$_GET['num'];$x++) {
?>
<div class='uploadbox'>
Associated Gallery <?=$x + 1?>:
<br />
<?
$selgal_sql = "SELECT * FROM $gal_galleries ORDER BY id DESC";
$selgal_result = mysql_query($selgal_sql) or print ("Unable to select data.<br />".$selgal_sql."<br />".mysql_error());
$selgal_num = mysql_num_rows($selgal_result);
if ($selgal_num > 0) {
echo "<select name='gal_id[]'>";
while ($selgal_row = mysql_fetch_array($selgal_result)) {
$selgal_id = $selgal_row["id"];
$selgal_title = $selgal_row["title"];
echo "<option value='".$selgal_id."'>".$selgal_id.": ".$selgal_title."</option>";
}
echo "</select>";
} else {
echo "<a href='gal_galleries.php'>Please create a new gallery to post photos!</a>";
}
?>
<br />
<br />

Photo File <?=$x + 1?>:
<br />
<input type='file' name='photo[]' size='50' />
<input type="hidden" name="thumb[]" value="<? ($_POST['photo']) ?>" />
<br />
<br />

Photo Title <?=$x + 1?>:
<br />
<input type='text' name='title[]' size='50' />
<br />
<br />

Photo Description <?=$x + 1?>:
<br />
<textarea cols='45' rows='5' name='description[]'></textarea>
</div>
<br />
<?php
} ?>
<br />
<br />
<input type="submit" name="action" value="add" />
</form>


<?
} else {
?>
<strong>Post New Photos</strong>
<br />
<br />
<form action="<?=$_SERVER['PHP_SELF']?>" method="get">
<input type="hidden" name="action" value="listforms" />
<label for="num">Select number of photos to post</label>:
<select id="num" name="num">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
</select>
<input type="submit" value="Proceed" />
</form>
<?
}
[/code]
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hitman6003 Newbie

hitman6003

Posted
Posted
Try this:

[code]<?php
if ($_POST['action'] == "add") {
$dirpath = "./";
$gallery_id = $_POST['gal_id'];
$html = "";

foreach ($_FILES['photo'] as $key => $value) {
$tmp_filename = $value['tmp_name'];
//__ photos in dir ablegen _______________________________________

$src = imagecreatefromjpeg($tmp_filename);

list($width,$height) = getimagesize($tmp_filename);

$newwidth = 550;
$newheight = ($height / $width) * $newwidth;

$tmp = imagecreatetruecolor($newwidth, $newheight);

imagecopyresampled($tmp, $src, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);

$filename = $dirpath . $gallery_id . "/" . $value['name'];

imagejpeg($tmp, $filename, 100);

imagedestroy($tmp);

#__ thumb _________________________________________________________

$srcthumb = imagecreatefromjpeg($tmp_filename);

list($widththumb,$heightthumb) = getimagesize($tmp_filename);

$newwidththumb = 100;
$newheightthumb = ($heightthumb / $widththumb) * $newwidththumb;
$src_top = ($src_height / 2) - ($dst_height / 2);
$src_left = ($src_width / 2) - ($dst_width / 2);

$tmpthumb = imagecreatetruecolor($newwidththumb, $newheightthumb);

imagecopyresampled($tmpthumb, $srcthumb, 0, 0, $src_top, $src_left, $newwidththumb, $newheightthumb, $widththumb, $heightthumb);

$thumbname = $dirpath . $gallery_id . "/zth_" . $titlesuf . $value['name']; //WTF is $titlesuf?

imagejpeg($tmpthumb, $thumbname, 100);

imagedestroy($srcthumb);
imagedestroy($tmpthumb);

#___________________________________________________________________imagedestroy($src);

$title = mysql_real_escape_string($_POST['title'][$key]);
$description = mysql_real_escape_string($_POST['description'][$key]);

$sql = "INSERT INTO $gal_photos (gal, photo, title, description) VALUES ('$gallery_id','" . $value['name'] . "', '$title', '$description')";

$query = mysql_query($sql) or die("MySQL Error: <br /> {$sql} <br />". mysql_error());

if (mysql_affected_rows($query) > 0) {
$html .= '
<div>
<span class="result">New Photo successfully added!</span><br />
<img src="../galleries/' . $gal . '/zth_' . $photo . '" />
</div>';
}

}

} elseif ($_GET['action'] == "listforms") {
$query = "SELECT * FROM $gal_galleries ORDER BY id DESC";
$result = mysql_query($selgal_sql) or die ("Unable to select data.<br />" . $selgal_sql . "<br />" . mysql_error());

if (mysql_num_rows($result) > 0) {
$gallery_select = "
<select name='gal_id[]'>";

while ($row = mysql_fetch_array($result)) {
$gallery_select .= '
<option value="' . $row['id'] . '">' . $row['id'] . ': ' . $row['title'] . '</option>';
}

$gallery_select .= "
</select>";
} else {
$gallery_select = "<a href='gal_galleries.php'>Please create a new gallery to post photos!</a>";
}

$html = '
<strong>Post New Photos</strong>
<br /><br />
<form method="post" action="' . $_SERVER['PHP_SELF'] . '" enctype="multipart/form-data">
<input type="hidden" name="MAX_FILE_SIZE" value="649760" />';

for ($x = 0; $x < $_GET['num']; $x++) {
$y = $x + 1;
$html .= '
<div class='uploadbox'>Associated Gallery ' . $y . ':
<br />
' . $gallery_select . '
<br /><br />
Photo File ' . $y . ':<br />
<input type="file" name="photo[' . $x . ']" size="50" />
<br /><br />
Photo Title ' . $y . ':<br />
<input type="text" name="title[' . $x . ']" size="50" />
<br /><br />
Photo Description ' . $y . ':<br />
<textarea cols="45" rows="5" name="description[' . $x . ']"></textarea>
</div>
<br />';
}

$html .= '
<br /><br />
<input type="submit" name="action" value="add" />
</form>';

} else {
$html = '
<strong>Post New Photos</strong>
<br /><br />
<form action="' . $_SERVER['PHP_SELF'] . '" method="get">
<input type="hidden" name="action" value="listforms" />
<label for="num">Select number of photos to post</label>:
<select id="num" name="num">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
</select>
<input type="submit" value="Proceed" />
</form>';
}

echo $html;

?>[/code]
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Adastra Member

Adastra

Posted
  • Author
Posted
Cool, thanks a lot, but right now I get this incredibly long site of error messages when I try to post multiple photos...:

I've looked in the Database, it created new entries for each, but it didn't insert anything except for the word "Array" in the first row. All other rows are blank (expect for the id of course).

[quote]
Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 15

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 16

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 17

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 19

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 20

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 26

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 29

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 30

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 32

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 33

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 34

Warning: mysql_affected_rows(): supplied argument is not a valid MySQL-Link resource in /www/htdocs/gallery/gal_postphotos2.php on line 41

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 15

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 16

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 17

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 19

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 20

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 26

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 29

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 30

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 32

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 33

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 34

Warning: mysql_affected_rows(): supplied argument is not a valid MySQL-Link resource in /www/htdocs/gallery/gal_postphotos2.php on line 41

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 15

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 16

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 17

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 19

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 20

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 26

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 29

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 30

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 32

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 33

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 34

Warning: mysql_affected_rows(): supplied argument is not a valid MySQL-Link resource in /www/htdocs/gallery/gal_postphotos2.php on line 41

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 15

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 16

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 17

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 19

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 20

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 26

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 29

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 30

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 32

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 33

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 34

Warning: mysql_affected_rows(): supplied argument is not a valid MySQL-Link resource in /www/htdocs/gallery/gal_postphotos2.php on line 41

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 15

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 16

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 17

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 19

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 20

Warning: Division by zero in /www/htdocs/gallery/gal_postphotos2.php on line 26

Warning: imagecreatetruecolor() [function.imagecreatetruecolor]: Invalid image dimensions in /www/htdocs/gallery/gal_postphotos2.php on line 29

Warning: imagecopyresampled(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 30

Warning: imagejpeg(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 32

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 33

Warning: imagedestroy(): supplied argument is not a valid Image resource in /www/htdocs/gallery/gal_postphotos2.php on line 34

Warning: mysql_affected_rows(): supplied argument is not a valid MySQL-Link resource in /www/htdocs/gallery/gal_postphotos2.php on line 41
[/quote]
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