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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"><HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=iso-iso-8859-1"><LINK REL="Start" HREF="index.html"><LINK REL="Contents" HREF="toc.html"><LINK REL="Prev" HREF="37CompilingPHP4.html"><LINK REL="Next" HREF="41Scopeofthischapter.html"><STYLE TYPE="text/css"><!--BODY { font-family: serif }H1 { font-family: sans-serif }H2 { font-family: sans-serif }H3 { font-family: sans-serif }H4 { font-family: sans-serif }H5 { font-family: sans-serif }H6 { font-family: sans-serif }SUB { font-size: smaller }SUP { font-size: smaller }PRE { font-family: monospace }A { text-decoration: none }--></STYLE></HEAD><BODY><A HREF="toc.html">Contents</A><A HREF="37CompilingPHP4.html">Previous</A><A HREF="41Scopeofthischapter.html">Next</A><HR NOSHADE><H1><A NAME="4">4 Quick Start: Dynamic Image Generation</A></H1><P> The purpose of this chapter is to put dynamic image generation inperspective and illustrate how HTML tags is used to call imagegenerating scripts. Even if You are familiar with PHP it is stronglyrecommended to quickly browse through this chapter to make sure allconcepts are known.</P><P> If You fully understand and can explain the concept of MIME types,HTTP streams and why the "Headers already sent error" error is verycommon when generating dynamic images with PHP it is probably safe toskip this chapter. Otherwise it might be wise to read through thischapter once.</P><HR NOSHADE><A HREF="toc.html">Contents</A><A HREF="37CompilingPHP4.html">Previous</A><A HREF="41Scopeofthischapter.html">Next</A></BODY></HTML>