Extension Png

How to make PHP at the same time support GIF, PNG, JPEG In RedHat6.2 according to the manual installation of PHP installed and found only deal with GIF images can not handle JPEG images. Later, I know that PHP handles images using the GD library, which initially supported the GIF. However, since the GIF uses a copyright controversial LZW algorithm that causes legal problems, GD libraries no longer support GD-1.6 GIF instead to support better, non-copyright-controversial PNGs. And I now want to support both GIF, PNG and JPE ...

This is my 10 years of time to write a blog, occasionally turned out, I think it is very fun. Seems to be because of inexplicable to see the JPEG compression algorithm, but see the fog. And then think about why so many pictures of the format? And in the software development of the B/s project with what format, C/s project with what format, logo pictures with what format, background pictures with what format and so on. So I wrote a text. 　　Take out today, edit again, do not know how you think, old fat very sincere hope to communicate with you. ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host Technology Hall This is my 10 years of time to write a blog, occasionally turned out, think it is very fun. Seems to be because of inexplicable to see the JPEG compression algorithm, but see the fog. And then think about why so many pictures of the format? And in the software development of the B/s project with what ...

In the Web application is often used to generate pictures of this function, in the PHP tutorial to create pictures need to support the GD library to create graphics, with this graphic function, we can easily generate thumbnails, verification code, to add watermarks and so on. In PHP to install the GD library to normal operation to create a picture function, the following methods, in the win system, find php.ini put; Extension=php_gd2.dll front ";" Go, and back up Apache OK. Here we look at the example of PHP ...

Many friends with WIN10 system often find the system from the photo viewer, what is the reason, how to find it back? First, we open a Notepad, you can click Win+r to open the Run box, and then enter Notepad in the Run box. Or right click on the desktop of the new inside, and then find a text document in the new, as shown in the following figure: then we open a word in the Notepad to enter the following code: Windows Registry Editor Version 5.00;

PHP Tutorial to judge the file types of uploaded files a variety of instance code $array = Array (' jpg ', ' gif ', ' PNG ', ' jpeg '); $PICIMG = '/upfile/upload_pic/thumbnail_1258615556.jpg '; $img = Strtolower ($PICIMG); Get file name extension method One $ext = substr ($img, Strrpos ($img, ' ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host Technology Hall today's main task is to recommend some excellent material resources of the site, but also I do the site, 　　The design of the Web site need to use, especially when I do not have the inspiration to do a website, will go to cool station appreciation, logo appreciation of the site to find inspiration. I mainly put this kind of resource download station divided into the following two major categories ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall written in front of the article, a lot of new webmaster, to speed up the speed of Web site access only exist in the server and template selection above, in fact, gzip page compression can greatly enhance the speed of Web site access, for the site in foreign stations, this is an essential step to enhance the Web page 　　Open speed is very obvious, now we have a systematic understanding of this gzip. First, what is gzip gzip concept gzip ...

Intermediary transaction SEO diagnosis Taobao Guest Cloud mainframe technology hall Google robot-what a magical dream of the boat! He knows our soul and every part. 　　Maybe he's not looking for something unique; he has read about billions of other sites (although we also share our data with other search engine bots), but tonight, as a website and Google bots, we will really know each other. I know it's never been a good idea to be overly analytical on a first date. We will pass a series of articles, a little bit ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall Hotlinking (hotlinking) is a headache, When we upload a file to our own Web server, others also link to the file and use our bandwidth directly to display or distribute the file on his website. 　　Download files that most often occur in pictures such as links, zip, and PDF. In a ...