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<?php
 
 
  function myFun(){
   echo "hello,ÕÅÈý";
  }
 
  //ÀûÓÃfunction_exists·½·¨ÅжÏ×Ô¶¯ÒÔ·½·¨ÊÇ·ñ´æÔÚ
  //¸Ã·½·¨²ÎÊýΪҪÅжϵÄ×Ô¶¨Òå·½·¨µÄ·½·¨Ãû£¬¿ÉдΪ
  //"myFun"»òmyFun
  if(function_exists(myFun)){
   echo "´æÔÚ";
  }else{
   echo "²»´æÔÚ";
  }
?>


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php ÕýÔò±í´ïʽ htmlÖеĻسµ

//»Ø³µ£º[\n\r\t]
$reg="|typeid=\"(.*)\" onsel.*[\n\r\t]*<a href="\" mce_href="\""#\">(.*)</a>|";
preg_match_all ($reg,
$html,
$out, PREG_PATTERN_ORDER);
foreach ($out as $value){
foreach ($value as $value2){
if(strlen($value2)<20)
echo ($value2."<br>");
}
} ......

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http://www.oracle.com/technology/documentation/berkeley-db/db/programmer_reference/ext_php.html
class Db4µÄÉùÃ÷ÈçÏ£º
class Db4 {
function Db4($dbenv = null) {} // create a new Db4 object using
......

PHPͼ±íÖÆ×÷¹¤¾ß¼¯

ת×Ô£ºhttp://nedvedheqing.javaeye.com/blog/383506
1. PHPÀ©Õ¹
JpGraph£ºhttp://www.aditus.nu/jpgraph/
ChartDirector£ºhttp://www.advsofteng.com/
2. JavaScript
Flot (http://code.google.com/p/flot/
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phpÔö,¸Ä,ɾ³ý²Ù×÷

<?php
class main extends spController
{
    function index(){
    echo "<p align=center><h1>HIS»ù´¡Êý¾Ýά»¤</h1>";
    echo "<p align=center><h2>¿ÆÊÒ×Öµä</h2>";
    $contentsurl=spUrl("main", "i ......

phpÖвÎÊý´øÄ¬ÈÏÖµµÄ×Ô¶¨Òå·½·¨

<?php
 
 
  //ʹÓÃfunction¹Ø¼ü×Ö¶¨Òå·½·¨
  function num($value,$value2 = 'ÄúºÃ£¡'){
   echo $value.$value2;
  }
 
 
  
   //µÚÒ»´Îµ÷ÓÃ
  num("ÕÅÈý");
 
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  //¿ÉÒÔ¿´³ö£¬¸Ã·½·¨¶¨Òåʱ£¬µÚ¶ ......
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