Store the script for example as image.php and link it like that: I have a main folder called 'imagesdb' and the tree subfolders full (Full quality images), show (images for the picture viewer) and thumb (for thumbnails in overview). So only the first visitor has to wait (which is usually me for controlling the uploads und updates), all other visitors get the stored images, which is much faster.Ĭreate different folders. So I modified my image creator and my viewer to let them store images, that are created. But I found out, that the Script needed too much RAM, especially in the thumbnail overview, when I had more then 50 thumbnails to create on the fly at the same time. When I scripted the pictuerviewer on my page, I had all the pictures only in full size and qualit, because I wanted the posibility für visitors to download the pictures.īut as Imagesizes of more than 4 MP are to large for websites, I created thumbnails and the smaller pictures on the fly. Here's another on-the-fly thumbnail creation script. The name field is the destination of the file minus the file extension: It will resize jpeg, gif or png and could easily be modified to add bmp. Here is a function to resize an image and maintain aspect ratio. Note: the directory where you want to save the file must have permissions set to 0777. Here is my solution, I didn't test, but it's possible, it is biting some memory:Īs you can see, the function moves the uploaded file where you want to save the resampled image (move_uploaded_file is not restricted by safe_mode) and then you can resample the image, because it was created by moving it already. This caused that I couldn't create the new file in which I wanted to resampled the image with nor with imagejpeg() nor with touch() and imagejpeg() after it. I had a problem with denied permissions when trying to upload AND resize an image having safe_mode on. This function returns an array with the x-resolution, y-resolution when they can be determined, otherwise FALSE. (But remember that you still need to have the EXIF extension installed with your instance of PHP for this to work!) So, after drawing on some other code examples on the web, I put together the following function which should always properly return the correct values. I came here looking for something similar to the getJPEGresolution function, but noticed the drawbacks that were pointed out in the last post. This simple code will increment from 1 to 3 on images. The HTML feature is img src and the php feature is imagettftext. I worked out a script that allows the transfer of alphanumeric data to be placed on an image. So, let's suppose you have a form where a user can upload an image, and you have to scale it and save it into your database. Here's a complete solution to READ any image (gif jpg png) from the FILESYSTEM, SCALE it to a max width/height, SAVE the scaled image to a BLOB field keeping the original image type. hope this will save time to other people! I didn't find any example like this on the Web, so I mixed pieces together. Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search
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