<table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_47618"> <div class="blockcode"> <div id="code_s08"><ol> <li> <li><?PHP <li>define("CONSTANT", "Hello world."); <li>echo CONSTANT; // outputs "Hello world." <li>echo Constant; // outputs "Constant" and issues a notice. <li>?></li> </ol></div> <em onclick="copycode($('code_s08'));">复制代码</em> </div> </td></tr></table> <div id="comment_47618" class="cm"> </div> <div id="post_rate_div_47618"></div> <br><br>