2010Äê×îÐÂPHPÀàµÄ¾«Ëõ¹éÄÉ
Ò»£º½á¹¹ºÍµ÷ÓÃ(ʵÀý»¯)£º
class className{} £¬µ÷Óãº$obj = new className();µ±ÀàÓй¹Ô캯Êýʱ£¬»¹Ó¦´«Èë²ÎÊý¡£Èç$obj = new className($v,$v2...);
¶þ£º¹¹Ô캯ÊýºÍÎö¹¹º¯Êý£º
1¡¢¹¹Ô캯ÊýÓÃÓÚ³õʼ»¯£ºÊ¹ÓÃ__construct()£¬¿É´ø²ÎÊý¡£
2¡¢µ«Îö¹¹º¯Êý²»ÄÜ´ø²ÎÊý£¨ÓÃÓÚÔÚÏúÈ¥Ò»¸öÀà֮ǰִÐÐһЩ²Ù×÷»ò¹¦ÄÜ£©¡£Îö¹¹º¯ÊýÓÃ__destruct()×öÃû³Æ¡£Ôڽű¾Ö´ÐнáÊøÊ±£¬PHP»áÏúµôÄÚ´æÖеĶÔÏó£¬Òò´Ë¿É²»ÓÃÎöÔ캯Êý£¬µ«ÓÐЩ±ÈÈçCOOKIEµÈ£¬¾ÍÓ¦µ±ÒªÓô˺¯ÊýÏúµô¡£
֪ʶµã£ºÔÚPHP4ÖÐÒ²ÌṩÁ˹¹Ô캯Êý£¬µ«Ê¹ÓõÄÊÇÓëÀàͬÃûµÄÀà·½·¨£¬ÔÚPHP5ÈÔÄܼæÈÝÕâÖÖ×ö·¨£¬µ±Ò»¸öÀàÖÐûÓаüº¬__constructʱ£¬»á²éÕÒÓëÀàͬÃûµÄ·½·¨£¬Èç¹ûÕÒµ½£¬¾ÍÈÏΪÊǹ¹Ô캯Êý£¬ÈçÏ£º
class test
{ var $b;
function test() { $this->b=5; }
function addab($c) { return $this->b+$c; }
}
$a = new test(); echo $a->addab(4); // ·µ»Ø 9
3¡¢PHP²»»á×Ô¶¯µ÷Óø¸ÀàµÄ¹¹Ô캯Êý(²»Ö§³Ö¹¹Ô캯ÊýÖØÔØ)£¬±ØÐëʹÓÃparent¹Ø¼ü×ÖÏÔʽµØµ÷Óá£
class employee{
function __construct()....
}
class Manager extents Employee{
function __construct(){
parent::_construct();
echo 'Õâ¸ö×ÓÀàµÄ¸¸À๹Ô캯Êýµ÷ÓÃÁË£¡';
}
}
µ±È»Ò²¿ÉÒÔµ÷ÓÃÓë¸ÃʵÀýûÓÐÈκιØÏµµÄÆäËüÀàµÄ¹¹Ô캯Êý¡£Ö»ÐèÔÚ__construct()ǰ¼ÓÉÏÀàÃû¼´¿É¡£È磺
otherClassName::__construct();
ÀàµÄÖ÷¼ÒÍ¥³ÉÔ±£ºÊôÐÔ¡¢·½·¨¡¢³£Á¿¡¢¾²Ì¬³ÉÔ±
Èý¡¢ÀàµÄÊôÐÔ£º
ÓÐÁ½ÖÖ·½·¨¶ÔÀàµÄÊôÐÔ¸³Öµ»òȡֵ¡£
1¡¢Ê¹Óù«¹²×÷ÓÃÓòpublic¹Ø¼ü´Ê¡£
2¡¢Ê¹ÓÃ__set()ºÍ__get()À´·Ö±ð¸³ÖµºÍȡֵ£¬Ç°Õß³ÆÎªÉèÖ÷½·¨£¨setter£©»òÐ޸ķ½·¨(mutator)£¬ºóÕß³ÆÎª·ÃÎÊ·½·¨(accessor)»ò»ñÈ¡·½·¨(getter)¡£½¨ÒéʹÓÃÕâÖÖ·½·¨£ºÓŵ㣺
A¡¢¿ÉÔÚ__set£¨£©Í³Ò»½øÐÐÊý¾ÝÑéÖ¤¡£
B¡¢±ãÓÚͳһ¹ÜÀíÊôÐÔ¡£
×¢Ò⣺
µÚÒ»£º__set()ºÍ__get()Ö»¶Ô˽ÓÐÊôÐÔÆð×÷Ó㬶ÔÓÚÓÃpublic¶¨ÒåµÄÊôÐÔ£¬ËüÃÇÁ½¸ö¶¼ÀÁÀí´îÀí£¬ÈçÏ£º
class test{
protected $a=9,$b=2,$c;
public $d;
function __set($n,$v) { $this->$n = $v+2; }
functio
Ïà¹ØÎĵµ£º
< type="text/javascript">
smarty ¿ÉÒÔÉú³É£¬
ÆäʵÉú³ÉµÄÔÀíºÜ¼òµ¥
1¡¢»ñÈ¡Äã¶¯Ì¬Ò³ÃæµÃÄÚÈÝ
2¡¢Ð´È뾲̬Îļþ
±ÈÈ磺
<?
//»ñÈ¡ÎļþÄÚÈÝ
$content=file_get_contents(http://www.www.com/viewPage.php?id=$id
);
//¼ì²éÊÇ·ñ´æÔÚ¾ÉÎļþ£¬ÓÐÔòɾ³ý
i ......
ϵͳÉè¼Æ´ÓÒ»¿ªÊ¼¾ÍÓ¦¸Ã¿¼ÂDz»Í¬Æ½Ì¨µÄ¼æÈÝÐÔÎÊÌ⣬×î³£¼ûÒ»¸öÎÊÌâ¾ÍÊÇLinux/uniuxÓëWinµÄһЩ²»Í¬£¬±ÈÈç˵Îļþ·¾¶·Ö¸ô·û¡¢¶à¸ö·¾¢·Ö¸ô·ûµÈµÈ¡£PHP±¾ÉíÄÚÖÃÁ˺ܶೣÁ¿£¬ÔÚ·½±ãµÄ±àд´úÂëͬʱҲºÜºÃµÄ´¦ÀíºÃÁ˲»Í¬Æ½Ì¨ÏµÄһЩ¼æÈÝÐÔÎÊÌâ¡£±ÈÈç×î³£Óõģº
DIRECTORY_SEPARATOR ·¾¶·Ö¸ô·û£¬WinÏÂÊÇ"\"¶ ......
phpµ¼Èëµ½excel-Ö§³Öutf8ºÍgbkÁ½ÖÖ±àÂë
phpµ¼Èëµ½excelÂÒÂëÊÇÒòΪutf8±àÂëÔÚxpϵͳ²»Ö§³ÖËùÓÐutf8±àÂëתÂëһϾÍÍêÃÀ½â¾öÁË
utf-8±àÂë°¸Àý
<?php
header("Content-Type: application/vnd.ms-excel; charset=UTF-8");
header("Pragma: public");
header("Expires: 0");
header("Cache ......
PHP5ÊÇÒ»¾ß±¸Á˴󲿷ÖÃæÏò¶ÔÏóÓïÑÔµÄÌØÐÔµÄÓïÑÔ,±ÈPHP4ÓÐÁ˺ܶàµÄÃæÏò¶ÔÏóµÄÌØÐÔ,µ«ÊÇÓв¿·Ö¸ÅÄîÒ²±È½ÏÄÑÒÔÀí½â,ÕâÀïÎÒÖ÷Ҫ̸µÄÊÇ this,self,parentÈý¸ö¹Ø¼ü×ÖÖ®¼äµÄÇø±ð¡£´Ó×ÖÃæÉϱȽϺÃÀí½â,·Ö±ðÊÇÖ¸Õâ¡¢×Ô¼º¡¢¸¸Çס£ÎÒÃÇÏȽ¨Á¢¼¸¸ö¸ÅÄî,ÕâÈý¸ö¹Ø¼ü×Ö·Ö±ðÊÇÓÃÔÚʲô µØ·½ÄØ?ÎÒÃdzõ²½½âÊÍÒ»ÏÂ,thisÊÇÖ¸Ïòµ±Ç°¶ÔÏóµÄÖ¸Õë(¹Ã ......
header("Expires: Mon, 26 Jul 2007 05:00:00 GMT"); »º´æÊ§Ð§Ê±¼ä
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . "GMT"); ×îºóÐÞ¸ÄÍøÒ³µÄʱ¼ä
header("Cache-Control: no-cache, must-revalidate"); ½ûÓûº´æ
header("Pragma: n ......