The numbers in the argument are RGB color numbers. Next we use imagecolorallocate() to allocate colors for the image. Next we use imagecreatetruecolor() to create a new true color image of the needed size. The adding of 20 is to give the final image padding so the words are not jammed against the image edge. Variables are defined using the imagefontwidth() and imagefontheight() functions from the GD library. Once the text gets to the image-gif.php script, the script GETs it into the PHP variable $mytext. Note that the text gets sent via URL query string in the variable "mytext". When it does this page refresh, it POSTs the text to an image-gif.php image creation file. The mytext-convert-to-gif-image.php script is mostly an HTML input form and the form action is to run this same file, mytext-convert-to-gif-image.php.
What the 2 scripts below do is turn your typed text input and turn it into an actual GIF image (as long as you have the correct permissions to do this-ask your host). Imagegif() function from the GD library is needed-along with several other functions-for this image creation to work. It usually is, but if it is not, get your host to do so. The PHP Script for Writing GIF Image Filesįirst, notice that we are counting on the GD library to have been enabled in your PHP installation. Write MPEG Video Web Page File with PHP.
Imagegif php windows#
Write Windows Media Video Web Page File with PHP.Write YouTube Video Web Page File with PHP.Let us know how you like these scripts! We kept them as simple as we could so you could get the idea in a flash. For image creation, we concentrated on the simple task of allowing users to input text and using PHP to take this text and put it in a nice box with a border and save it as a graphics/image file. There are even five PHP scripts for creating graphics/image files. The list below shows you how-it's not hard at all. There are times when you just need to use PHP to write various types of files. You will find that write-nearly-any-type-of-file-with-php.html is the best place you can go for answers if you are testing a PHP script for writing a file and you get the dreaded permission error message. Some hosts disallow fwrite and even PHP file functions in general. But you may find you can fwrite with only a 755 CHMOD (public_html AND the PHP script file setting). If you find that you need 777, you may find your host blocks this setting. But this is not a hard and fast rule-your mileage may vary. Newer servers need only 755-which is obviously more secure. We are not those people, nor is our server host. But on other servers (like ours, we discovered), you need permissions set to 777. On some servers, you need permissions (CHMOD) set to 755 to use the PHP fwrite function, which all the file creations below use in their code. The one thing you need to watch here is permissions. The script below will concentrate on GIF Image files.
Imagegif php free#
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