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PHP uses the GD library to generate a verification code to draw Chinese characters on the image

: This article describes how to use the GD library to generate a verification code for PHP to draw Chinese characters on the image. For more information about PHP tutorials, see. PHP is not limited to creating HTML output. It can also create and

PHP uses GD library to generate verification code to draw Chinese characters on image

PHP is not limited to creating HTML output, it can also create and process images in a variety of formats including GIF, PNG, JPEG, WBMP, and XPM. More conveniently, PHP can directly output the image data stream to the browser. To use the image

PHP uses GD library to generate verification code to draw Chinese characters on image

PHP is not limited to creating HTML output, it can also create and process images in a variety of formats including GIF, PNG, JPEG, WBMP, and XPM. More conveniently, PHP can directly output the image data stream to the browser. To use the image

PHP GD Library related image generation and processing function summary _php skills

This paper summarizes the PHP GD library related image generation and processing functions. Share to everyone for your reference, specific as follows: These days in the study of image verification code, reference to many examples, are using the GD

How to open GD library support in PHP _php tutorial

Open GD Library is an important parameter in PHP, commonly used to deal with images, such as images of any processing requires the support of the GD library, below I introduce the various systems of GD library open methods and commands, we can refer

PHP gd proportional Scaling compressed picture function, _php tutorial

PHP gd and other proportional scaling compressed picture functions, The example of this article for you to share the PHP gd and other proportional scaling compressed picture functions for your reference, the specific content as follows 600?600:

PHP gd Proportional scaling compression picture function _php Skills

This example for you to share the PHP gd proportional scaling compression picture function for your reference, the specific contents are as follows 600?600: $width) *0.9; $new _height = ($height >600?600: $height) *0.9; Switch

Common GD library functions

01. php /* Drawing with Windows graphic Board 1: Create a canvas and set the size. 2: Create a pigment. (red, r Green G blue B, composed of three primary colors. The primary colors can be 0-from weak to strong ). 3: draw lines, write, draw

GD Library Notes

^. GD IntroductionPHP is not limited to producing only HTML output, but it can also create and manipulate image files in many different formats.PHP provides some built-in image information functions, or you can use the GD library to create new

Customizable PHP thumbnail Generation Program (supported by the GD library) _ php instance

Customizable PHP thumbnail Generation Program (supported by the GD library) typical PHP thumbnail Generation Program. Based on the GD library, you can specify the width and height of the generated path and the target. Usage: in the PHP environment

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