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Top > PHP > Tips and Tutorials > Image Manipulation

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1. PHP: Dynamic Image Generation
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Creating images on the fly can be a very useful skill. PHP has some built-in image generation functions, further more, to generate new images or edit existing images on the fly using PHP, we need to have the GD library installed. In this tutorial we will show you how to get quite interesting and useful effects using image handling functions. We will review two practical tasks: creating security images (captcha) on the fly and building a bar chart using numerical values retrieved from MySQL database.
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Nov 30, 2006 Hits: 12 Rating: 0.00 Votes: 0

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2. Resize an Image
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You can use this function to dynamically generate html "width/height" for use with displaying a thumbnail image usingthe original image. This will help save in making dup images just for display as a thumbnail.
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 14 Rating: 0.00 Votes: 0

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3. Auto Thumbnailer
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A thumbnail is a smaller version of an image. We use thumbnail to save download size & time for visitors. When a visitor visit a page with thumbnails, he can click on a thumbnail to see a larger version of the image. Thumbnails usually seen in any image gallery sites, online shopping, and many more
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 16 Rating: 0.00 Votes: 0

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4. Rotating Pictures with PHP
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Image rotation in PHP is handled by a function called imagerotate(), which takes three parameters (and optionally a fourth, which deals with transparency and is beyond the scope of this guide). The first is the resource identifier which you obtain when you load the original image within your script, the second is the angle which you want to rotate the image and the third parameter is used when the image isn't going to be rectangular, and specifies the colour with which to fill the uncovered areas of the rotated image to make it into a rectangle (since all image formats require rectangular images).
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 9 Rating: 0.00 Votes: 0

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5. How to upload images to mySQL within PHP
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Aim of this article is to sho you the simples way to uplaod images to mySQL database. First you need to create a custom database table. The name of this table can be named as "images_table". Now here is the SQL code for creating the table
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 17 Rating: 0.00 Votes: 0

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6. Tutorial 8: PHP Create Image Thumbnail
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You will need PHP and GD Graphics Library library installed. To see if you have gd installed on your server, create a file named info.php, plece the following content in it:
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 12 Rating: 0.00 Votes: 0

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7. Write Text on to an existing PNG image using PHP
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This article will tell you how to write text on an existing PNG image using PHP using PHP's image manipulation functions. The image functions require the GD library to be installed. This article is fairly basic, however some more detail on the basic functions used is included in the article, "write text on a dynamically generated image in PHP"

First, we need the source image. In this example, we're using an image called image.png (with dimension 150x150, though this code will work with any size of image) which is shown below:
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 21 Rating: 0.00 Votes: 0

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8. Write text on a dynamically generated image using PHP
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This tutorial will tell you how to write text to a blank dynamically generated PNG image in PHP. This is fairly simple, so it will just be the first step in a series of tutorials dealing with images in PHP. The image functions require the GD library to be installed.
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 8 Rating: 0.00 Votes: 0

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9. largest collection of smiley generators ever assembled in one place
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The largest collection of smiley generators ever assembled in one place!

Watch this space for smiley generator resources, links, tutorials, code and much more.
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 2 Rating: 0.00 Votes: 0

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10. The PHP-GTK extension
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PHP-GTK is an extension to PHP that enables you to develop stand alone GUI applications. These applications can run on multiple platforms. With PHP-GTK you can utilize the power of PHP using a graphical desktop application like interface. You can develop many useful kinds of database enabled desktop applications with the PHP-GTK framework.
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PHP > Tips and Tutorials > Image Manipulation

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Date Added: Oct 15, 2006 Hits: 3 Rating: 0.00 Votes: 0

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