Re: Watermark with GD

"Tamara Temple" <tamouse.lists@gmail.com> wrote in message news:94DF613C-6B40-4897-B101-21CF7D83A763@gmail.com... > > On Oct 30, 2010, at 9:31 AM, Gary wrote: > >> >> "tedd" <tedd.sperling@gmail.com> wrote in message >> news:p06240800c8f1d19b992f@[192.168.1.2]... >>> At 3:05 PM -0400 10/29/10, Gary wrote: >>>> I am trying to get the watermark to work, however I am having a >>>> problem in >>>> that the image is being called from a database (image sits in images >>>> file). >>>> >>>> The script in question is this >>>> >>>> $image = imagecreatefromjpeg($_GET['src']); >>>> >>>> However it produces an error message of >>>> >>>> Warning: imagecreatefromjpeg() [function.imagecreatefromjpeg]: >>>> Filename >>>> cannot be empty in /home/content/a/l/i/alinde52/html/ imagesDetail.php >>>> on >>>> line 233 >>>> >>>> I have tried various methods, for example: ($_GET ['images/'] or >>>> ($_GET >>>> ['images/$row_WADAimages["image_id"]]. >>>> >>>> Can anyone shed some light on this for me. >>>> >>>> Thank you >>>> >>>> Gary >>> >>> Gary: >>> >>> Several things. >>> >>> 1. Getting an image from a database? You mean that you are getting the >>> path of the image in the file system, right? >>> >>> Side note: You could place the image inside the database using a BLOB >>> and >>> do away with the path all together. That has the benefit of being >>> portable -- you simply move the database to where ever you want it. The >>> downside is that the database becomes very large, but no more so that >>> the >>> file system. There are pro's and con's in storing actual images in a >>> database. >>> >>> 2. Using a GET is not the way to get the path. Instead, you have to >>> retrieve the path from the database table where the path is stored -- >>> and that requires a MySQL query similar to "SELECT * FROM <database> >>> WHERE >>> id=<whatever>". There are lot's of examples of how to pull data from a >>> database. >>> >>> 3. After getting the path, then you can create the watermark like so: >>> >>> http://webbytedd.com/b/watermark/ >>> >>> Hope this helps, >>> >>> tedd >>> >>> -- >>> ------- >>> http://sperling.com/ >>> >> >> tedd >> >> Thank you for your reply. >> >> I was under the impression that the image is stored in a folder called >> images, in fact the images file do go in, however I have the DB set up >> for >> longblob, averaging about 20kb each, so now I am unsure. I exported the >> sql >> so perhaps you can tell me. >> >> Table structure for table images >> -- >> >> CREATE TABLE IF NOT EXISTS images ( >> image_id int(10) unsigned NOT NULL AUTO_INCREMENT, >> caption varchar(50) NOT NULL, >> wheretaken varchar(100) NOT NULL, >> description text NOT NULL, >> file_name varchar(25) NOT NULL, >> image_file longblob NOT NULL, >> submitted timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, >> PRIMARY KEY (image_id) >> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1447 ; >> >> When I call the images, which works fine, I do need to specify the path >> that >> leads to the images folder. Am I being redundant in this structure. >> >> This is the script that I use to call the images. I have pulled out some >> of >> the html that styles the data. >> >> <?php if ($totalRows_WADAimages > 0) { // Show if recordset not empty ?> >> <?php echo $row_WADAimages["caption"]; ?> >> src="images/<?php echo $row_WADAimages["image_file"]; ?>" >> <?php echo >> $row_WADAimages["description"]; ?>" >> >> <?php echo $row_WADAimages["where_taken"]; ?> >> <?php echo $row_WADAimages["description"]; ?> >> >> Thank you for your help. >> >> Gary > > is this the imageDetail.php script? > > From what it appears in the code, image_file is holding the > file name > rather than the actual image. Yet you have image_file defined > as a > longblob, which would make sense if you were storing the actual image > data in the data base rather than on the file system. As Ashley noted, > you can do it either way. I notice you also have a field > file_name -- > what is this used for? It sounds like your design is a bit off -- neither > one way or the other. The php shown doesn't look complete enough, > though -- where is the img tag and such? Also, going in and out of php on > each line is kind of a waste and looks sloppy. If i read that code right, > it would emit something like this: > > > caption text > src="images/pathtoimagefile" description text > > where taken text > description text > > Look at the html that's emitted from the script and see if that's what > you get. > > Can you post or pastebin more of the .php script so I can see more of > what is going on? > Tamara Thanks for the reply, here is a link to the code of the page. http://www.paulgdesigns.com/detailcode.php Again, thank you for your help. Gary __________ Information from ESET Smart Security, version of virus signature database 5578 (20101031) __________ The message was checked by ESET Smart Security. http://www.eset.com