PHP GD2 Function Usage Instance Summary

Using the GD2 function to implement chart analysis product data (PHP graphic image Typical application tutorial 6) using charts to analyze product data information is the most commonly used data management model of large and medium-sized enterprises, through the chart to analyze the product can not only be at a glance, but also the next step in product planning to make timely decisions, Quickly improve the economic efficiency of enterprises, this shows that the use of charts to analyze product data trends is the foundation of rapid development of enterprises, this is the introduction of chart analysis product data! In the previous article, "Using the GD2 function to add row and column labels to a chart (PHP graphic image of a typical application tutorial 5)" We introduced the chart to add row and column labels, then use the GD2 function to implement the chart analysis product data, with the content of the previous article is inseparable, to use the content of the previous article, let us detail! Technical points are mainly applied to the array () function and the imagestring () function to add various product data information to the chart, where the imagestring () function we have in the deletion of an article is described in detail, array () in the array of topics are also described in detail, Here we do not do more detailed introduction, not clear of the small friends can

1. Using the GD2 function to implement chart analysis product data (PHP graphic image of the typical application tutorial 6)

Introduction: The use of charts to analyze product data information is the most commonly used data management model of large and medium-sized enterprises, through the chart to analyze the product can not only be at a glance, but also on the next stage of product planning decision-making, rapid improvement of enterprise economic benefits, thus, The use of charts to analyze product data trends is the foundation of rapid development of enterprises, this is the introduction of chart analysis product data!

2. Use the GD2 function to add row and column labels to the chart (PHP graphic image typical application tutorial 5)

Introduction: The application of the chart in the data is very extensive, also very use, through the data graph can be the complex data visualization, then we this article is mainly to explain to the chart to add rows and columns of the operation Method!

3. Using the GD2 function to draw the geometry (PHP graphic image typical application tutorial 4)

Introduction: This article mainly explains the use of the GD2 function to achieve the drawing of the geometry, first of all we need to create an image, in the previous article we have said that the creation of images is the first step of all image operations, and then the background on the basis of the coordinates of the drawing contour, the final output graphics!

4. How to use the GD2 function to add text to a picture (PHP graphic image typical Application tutorial 2)

Introduction: The GD Library in PHP supports Chinese, but it must be passed in UTF-8 encoding format, if you use the imagesstring () function to draw Chinese characters directly garbled, because GD2 can only receive UTF-8 encoding format, and the default use of English fonts, So to output Chinese strings, the Chinese string must be transcoded, and set the font used in Chinese strings, otherwise, the output can only be garbled!

5. Understanding the GD2 function library

Introduction:: Understand the GD2 function library: PHP is currently in the field of web development has been widely used, PHP can not only generate HTML pages, but also can create and manipulate binary forms of data, like, files and so on. The use of PHP operation graphics can be achieved through the GD2 function library. Using the GD2 function library, you can draw various images and graphs in the page, and if combined with Ajax technology, you can create powerful dynamic graphs. The GD2 Library is an open, dynamically created library of source code for the creation of images. Currently, the GD2 library supports GIF, PNG, JPEG, W

6. Introduction to Jpgraph class Library ntgraph graph download Pyqtgrap

Introduction: Graph,jpg:jpgraph Class Library Introduction: Jpgraph Class Library is a class library that can be applied to the drawing of graphics images above PHP4.3.1, which is written entirely based on the GD2 function library. The Jpgraph class Library provides a variety of methods for creating various types of charts, including coordinate charts, histograms, pie charts, and more. The use of the Jpgraph class Library makes it easier to write complex statistical diagrams, greatly improving developer productivity and being widely used in today's PHP projects. Jpgraph installation before installing jpgraph first need to download the class

7. Error adding text to photo using GD2 function ~

Summary: Use the GD2 function to add text to a photo with an error ~

8. PHP to create a verification code, how to deal with

Introduction: PHP Create verification code just start to see PHP using GD2 function to create a verification code, inside encountered problems, the last two sentences do not understand: $ImageFun = ' Image '. $type; $ImageFun ($im) What do these two words mean? is $ImageFun a variable? Why do I comment out the last sentence, do not display the verification code, is $imagefun a function? But I checked the PHP manual, as if there was no such function, expecting the master

9. Use the GD2 function to add text to the photo with an exception

Summary: Use the GD2 function to add text to a photo error ~ There is such an error how to solve Ah, tried a lot of ways can not.!<br/><b>warning</b>: Imagecreatefromjpeg (/ Images/photo.jpg): Failed to open str

PHP Create a verification code, how to deal with

Introduction: PHP Create verification code just start to see PHP using GD2 function to create a verification code, inside encountered problems, the last two sentences do not understand: $ImageFun = ' Image '. $type; $ImageFun ($im) What do these two words mean? is $ImageFun a variable? Why do I comment out the last sentence, do not display the verification code, is $imagefun a function? But I checked the PHP manual, as if there was no such function, expecting the master