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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="3Installation.html"><LINK REL="Next" HREF="311VerifyingthatyouhavetheGDlibraryinstalled.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="3Installation.html">Previous</A><A HREF="311VerifyingthatyouhavetheGDlibraryinstalled.html">Next</A><HR NOSHADE><H2><A NAME="3_1">3.1 Preparation</A></H2><P> In order to make use of the library it is necessary to ensure thatthe script files can correctly access the library include files (asdescribed below) and that the PHP installation supports at least onegraphic format, i.e. it supports the "image" extension in PHP.</P><P> This is easiest verified by either checking the output of the<I>phpinfo()</I> standard PHP function or by making sure the PHPinstallation make the 'imagecreate()' function available.</P><P> This means that the installation<!--string-->must have a working GD-library together with PHP before the libraryJpGraph can be used. Please make sure you have version 4.3.x or aboveof PHP since JpGraph is<STRONG> not</STRONG> actively tested withversions prior to PHP 4.3.x Ideally you should use at least PHP 4.3.8</P><P> Please note that the 1.x version of the library do<B> not</B>support PHP 5.x</P><HR NOSHADE><A HREF="toc.html">Contents</A><A HREF="3Installation.html">Previous</A><A HREF="311VerifyingthatyouhavetheGDlibraryinstalled.html">Next</A></BODY></HTML>