intro.image.html

来自「php的帮助文档,涉及到PHP的案例和基本语法,以及实际应用内容」· HTML 代码 · 共 53 行

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head>  <title>Introduction</title>  <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.image.html">GD</a></div> <div class="next" style="text-align: right; float: right;"><a href="image.setup.html">Installing/Configuring</a></div> <div class="up"><a href="book.image.html">GD</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="intro.image" class="preface">  <h1 class="title">Introduction</h1>  <p class="para">   PHP is not limited to creating just HTML output.  It can also be   used to create and manipulate image files in a variety of different   image formats, including gif, png, jpg, wbmp, and xpm. Even more   convenient, PHP can output image streams directly to a browser. You   will need to compile PHP with the GD library of image functions for   this to work. GD and PHP may also require other libraries, depending   on which image formats you want to work with.  </p>  <p class="para">   You can use the image functions in PHP to get the size of   <acronym title="Joint Photographic Experts Group">JPEG</acronym>, <acronym title="Graphic Interchange Format">GIF</acronym>,   <acronym title="Portable Network Graphics">PNG</acronym>, <acronym title="Shockwave Flash">SWF</acronym>,   <acronym title="Tagged Image File Format">TIFF</acronym> and <acronym>JPEG2000</acronym> images.  </p>  <p class="para">    With the <a href="ref.exif.html" class="link">exif extension</a>, you are able    to work with information stored in headers of    <acronym title="Joint Photographic Experts Group">JPEG</acronym> and <acronym title="Tagged Image File Format">TIFF</acronym> images. This way you can    read meta data generated by digital cameras. The exif    functions do not require the <acronym title="Graphics Draw">GD</acronym> library.  </p>    <p class="para">   <blockquote><p><b class="note">Note</b>:     <span class="simpara">     Read the requirements section about how to expand image capabilities     to read, write and modify images. To read meta data of pictures     taken by digital cameras you need the above mentioned     <a href="ref.exif.html" class="link">exif extension</a>.    </span>   </p></blockquote>  </p> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.image.html">GD</a></div> <div class="next" style="text-align: right; float: right;"><a href="image.setup.html">Installing/Configuring</a></div> <div class="up"><a href="book.image.html">GD</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>

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