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1.Ê×ÏÈÎÒÃÇ¿ªÊ¼ÅжÏÎļþÀàÐÍÊÇ·ñΪͼƬÀàÐÍ
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{
strrchr:²éÕÒ×Ö·û´®ÔÚÁíÒ»¸ö×Ö·û´®ÖÐ×îºóÒ»´Î³öÏÖµÄλÖ㬲¢·µ»Ø´Ó¸ÃλÖõ½×Ö·û´®½áβµÄËùÓÐ×Ö·û¡£
substr: È¡²¿·Ý×Ö·û´®¡£
$HTTP_POST_FILES['file']['name']:»ñÈ¡µ±Ç°ÉÏ´«µÄÎļþÈ«³Æ¡£
}
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<?
function type()
{
return substr(strrchr($HTTP_POST_FILES['file']['name'],'.'),1);
}
?>
2.ÈôÊÇÔòÉÏ´«Îļþ£¬È»ºóÖØÃüÃûÎļþ
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{
strtolower:°Ñ×Ö·û´®µÄ×Öĸȫ²¿×ª»»ÎªÐ¡Ð´×Öĸ.
in_array£º º¯ÊýÔÚÊý×éÖÐËÑË÷¸ø¶¨µÄÖµ¡£
implode£ºº¯Êý°ÑÊý×éÔªËØ×éºÏΪһ¸ö×Ö·û´®
random:Ëæ»úÉú³ÉµÄÊý
$_FILES['userfile']['name']:ÉÏ´«ÎļþÃû³Æ
$uploaddir£º×Ô¼º¶¨ÒåµÄ±äÁ¿¡£±ÈÈçÔÚͬһ¸öÎļþ¼ÐÀïÃæ£¬ÄãÏë°ÑÉÏ´«µÄÎļþ·Åµ½Õâ¸öÎļþ¼ÐµÄFILEÎļþ¼ÐÏ£¬Äã¿ÉÒÔÕâÑù¶¨Òå$uploaddir="./file/"£»×¢Òâд·¨
}
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Ïȶ¨ÒåÔÊÐíÉÏ´«ÎļþµÄÀàÐÍÊý×飺$type=array("jpg","gif","bmp","jpeg","png");
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if(!in_arry(strtolower(type()),$type))//Èç¹û²»´æÔÚÄÜÉÏ´«µÄÀàÐÍ
{
  
$text=implode('.',$type);
   echo "ÄúÖ»ÄÜÉÏ´«ÒÔÏÂÀàÐÍÎļþ: ",$text,"<br>";
}
ÏÂÃæ¾ÍÊǸøËûÃÇÖØÐÂÃüÃûÁË,
else
{
  
$filename=explode(".",$_FILES['userfile']['name']);//°ÑÉÏ´«µÄÎļþÃûÒÔ“


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# tar zxf mysql-5.0.21.tar.gz
# cd mysql-5.0.21
#./configure --prefix=/usr/local/mysql --sysconfdir=/etc --lo ......

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var_dump(2147483647); // int
var_dump(
2147483648); // float
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$u = sprintf("%u",
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var_dump($u);
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<?php
class Book{
    static $num=0;
    public function showme(){
        echo 'ÄúÊǵÚ'.self::$num.'λ·Ã¿Í';
        self::$num++;
     ......

phpµÄsessionÓëcookieµÄÇø±ð

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<?php
  session_start();
 
  if (empty($_SESSION['count'])) {
      $_SESSION['count'] = 1;
  } else {
      $_SESSION['count']++;
  }
  var_dump($_SESSION);
 
  var_ ......

ÉîÒ¹ÏÐÁÄJavaÓëPHP ÒÔ¼°¼Ü¹¹Éè¼ÆË¼ÏëÓë×î¼Ñʵ¼ù

ÉîÒ¹ÏÐÁÄJavaÓëPHP ÒÔ¼°¼Ü¹¹Éè¼ÆË¼ÏëÓë×î¼Ñʵ¼ù
·¢ÐÅÈË: wesley (ÐÄÖеÄÉ­ÁÖ), ÐÅÇø: Java
±ê  Ìâ: ÉîÒ¹ÏÐÁÄJavaÓëPHP ÒÔ¼°¼Ü¹¹Éè¼ÆË¼ÏëÓë×î¼Ñʵ¼ù
·¢ÐÅÕ¾: ˮľÉçÇø (Thu Dec 24 01:55:04 2009), Õ¾ÄÚ
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http://blog.sina.com.cn/s/blog_53923f940100g7xx.html
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