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phpÓÅ»¯·½·¨

1.Èç¹ûÒ»¸ö·½·¨¿É¾²Ì¬»¯£¬¾Í¶ÔËü×ö¾²Ì¬ÉùÃ÷¡£ËÙÂÊ¿ÉÌáÉýÖÁ4±¶¡£
2.echo ±È print ¿ì¡£
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4.ÔÚÖ´ÐÐforÑ­»·Ö®Ç°È·¶¨×î´óÑ­»·Êý£¬²»ÒªÃ¿Ñ­»·Ò»´Î¶¼¼ÆËã×î´óÖµ¡£
5.×¢ÏúÄÇЩ²»ÓõıäÁ¿ÓÈÆäÊÇ´óÊý×飬ÒÔ±ãÊÍ·ÅÄÚ´æ¡£
6.¾¡Á¿±ÜÃâʹÓÃ__get£¬__set£¬__autoload¡£
7.require_once()´ú¼Û°º¹ó¡£
8.ÔÚ°üº¬ÎļþʱʹÓÃÍêÕû·¾¶£¬½âÎö²Ù×÷ϵͳ·¾¶ËùÐèµÄʱ¼ä»á¸üÉÙ¡£
9.Èç¹ûÄãÏëÖªµÀ½Å±¾¿ªÊ¼Ö´ÐУ¨Òë×¢£º¼´·þÎñÆ÷¶ËÊÕµ½¿Í»§¶ËÇëÇ󣩵Äʱ¿Ì£¬Ê¹ÓÃ$_SERVER[‘REQUEST_TIME’]ÒªºÃÓÚtime()¡£
10.º¯Êý´úÌæÕýÔò±í´ïʽÍê³ÉÏàͬ¹¦ÄÜ¡£
11.str_replaceº¯Êý±Èpreg_replaceº¯Êý¿ì£¬µ«strtrº¯ÊýµÄЧÂÊÊÇstr_replaceº¯ÊýµÄËı¶¡£
12.Èç¹ûÒ»¸ö×Ö·û´®Ìæ»»º¯Êý£¬¿É½ÓÊÜÊý×é»ò×Ö·û×÷Ϊ²ÎÊý£¬²¢ÇÒ²ÎÊý³¤¶È²»Ì«³¤£¬ÄÇô¿ÉÒÔ¿¼ÂǶîÍâдһ¶ÎÌæ»»´úÂ룬ʹµÃÿ´Î´«µÝ²ÎÊýÊÇÒ»¸ö×Ö·û£¬¶ø²»ÊÇֻдһÐдúÂë½ÓÊÜÊý×é×÷Ϊ²éѯºÍÌæ»»µÄ²ÎÊý¡£
13.ʹÓÃÑ¡Ôñ·ÖÖ§Óï¾ä£¨Òë×¢£º¼´switch case£©ºÃÓÚʹÓöà¸öif£¬else ifÓï¾ä¡£
14.ÓÃ@ÆÁ±Î´íÎóÏûÏ¢µÄ×ö·¨·Ç³£µÍЧ¡£
15.´ò¿ªapacheµÄmod_deflateÄ£¿é¡£
16.Êý¾Ý¿âÁ¬½Óµ±Ê¹ÓÃÍê±ÏʱӦ¹Øµô ......

php ͨ¹ýÍøÒ³µÄ·½Ê½±¸·ÝºÍ»¹Ô­mysqlÊý¾Ý¿â

 ×î½üÉÏÍøÕÒÁËһЩ¹ØÓÚ±¸·ÝmysqlÊý¾Ý¿âµÄ·½·¨£¬Ö÷Òª¾ÍÊÇͨ¹ýÍøÒ³µÄ·½·¨µ¼³öÊý¾Ý¿âµÄsql Îļþ£¬ÕÒµ½¸ö²»´íµÄ´úÂ룬µ«·¢ÏÖÖÐÎĵ¼³ö»áÂÒÂ룬ÓÚÊÇÉÔ΢ÐÞ¸ÄÁËһϣ¬ÏÂÃæÊDZ¸·ÝµÄ´úÂë
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<html xmlns="http://www.w3.org/1999/xhtml">  
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
<title>Êý¾Ý¿â±¸·Ý</title>  
<link href="user/input.css" mce_href="user/input.css" rel="stylesheet" type="text/css" />  
</head>  
<?  
global $mysqlhost, $mysqluser, $mysqlpwd, $mysqldb;  
$mysqlhost="localhost:3306"; //host name  
$mysqluser="root";                //login name  
$my ......

php ͨ¹ýÍøÒ³µÄ·½Ê½±¸·ÝºÍ»¹Ô­mysqlÊý¾Ý¿â

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
<html xmlns="http://www.w3.org/1999/xhtml">  
<head>  
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
<title>Êý¾Ý¿â±¸·Ý</title>  
<link href="user/input.css" mce_href="user/input.css" rel="stylesheet" type="text/css" />  
</head>  
<?  
global $mysqlhost, $mysqluser, $mysqlpwd, $mysqldb;  
$mysqlhost="localhost:3306"; //host name  
$mysqluser="root";                //login name  
$my ......

phpͳ¼ÆIPÒÔ¼°ÔÚÏßÈËÊýµÄͳ¼Æ

    1.ÓÃJSµ÷ÓÃÎļþcount.php  ÔÚÄãÐèÒª¼ÓÈëͳ¼ÆµÄµÄµØ·½¼ÓÈë<script src="count.php"></script>  ʵ¼ÊÔËÓÃÖÐ×¢ÒâÐ޸ķ¾¶£¡
  
     2.php»·¾³±ØÐëÖ§³Öputenv()º¯Êý,¿ÉÒÔͳ¼Æ×òÈÕ·ÃÎÊ£¬½ñÈÕ·ÃÎÊ£¬ÔÚÏßÈËÊý,Äú·ÃÎʵĴÎÊý¡£
    3 . ÔÚcount.phpÏàͬĿ¼½¨Á¢ÒÔÏÂÎļþ  count,temp,online,н¨Îı¾Îĵµcount.txt È»ºóÈ¥µôÀ©Õ¹Ãû¾ÍÊÇÎļþcountÁË£»Èç¹ûÊÇLinuxÖ÷»úÇë°ÑÕâÈý¸öÎļþÊôÐÔÉèΪ777.
count.phpÎļþ´úÂë:
<?
$file             = "count"; // ¼ÇÊýÎļþÃû³Æ
$startno          = "1000";   // ÆðʼÊýÖµ
$tempfile         = "temp"; 
$t_now   = time();
$t_array = getdate($t_now);
$day     = $t_array['mday'];
$mon     = $t_array['mon'];
$year    = $t_array['year'];
if (file_exists("$file")) {
 &nbs ......

phpÒÔrootȨÏÞÖ´ÐеĽâ¾ö·½°¸Ö®Ò»

ÕâÖÖÎÊÌâÎÒÏë´ó¼Ò¿ÉÄܶ¼Óöµ½¹ý£¬ÍøÓÑÌṩµÄ½â¾ö·½·¨Ò²ºÜ¶à¡£ÎÒÒ²Ö»ÊǽáºÏ×Ô¼ºÏµÍ³µÄÐèÇó²¢½áºÏÍøÓѵĽâ¾ö·½°¸À´×ܽáµÄÒ»ÖÖ·½·¨
ÓÃÀ´×÷Ϊ½â¾öphpÒÔrootȨÏÞÖ´ÐÐһЩÆÕͨÓû§²»ÄÜÖ´ÐеÄÃüÁî»òÓ¦ÓõIJο¼¡£
ÆäʵphpÀïµÄpopen()º¯ÊýÊÇ¿ÉÒÔ½â¾öÕâ¸öÎÊÌâµÄ£¬µ«ÊÇÓÉÓÚijЩ°æ±¾µÄlinux(ÈçÎÒʹÓõÄCentos 5)¶Ôϵͳ°²È«µÄ¿¼ÂÇ£¬
ʹµÃÕâ¸öÎÊÌâ½â¾öÆðÀ´Âé·³Á˺öࡣÏÈÀ´¿´Ò»¸öÍøÓÑʹÓÃpopen()º¯ÊýµÄÀý×Ó¡£
/* PHPÖÐÈçºÎÔö¼ÓÒ»¸öϵͳÓû§
ÏÂÃæÊÇÒ»¶ÎÀý³Ì£¬Ôö¼ÓÒ»¸öÃû×ÖΪjamesµÄÓû§,
rootÃÜÂëÊÇ louis¡£½ö¹©²Î¿¼
*/
$sucommand = "su root --command";
$useradd = "/scripts/demo/runscripts.php";
$rootpasswd = "louis";
$user = "james";
$user_add = sprintf("%s %s",$sucommand,$useradd);
$fp = @popen($user_add,"w");
@fputs($fp,$rootpasswd);
@pclose($fp); 
¾­¹ý×Ô¼ºµÄ²âÊÔ£¬Ö¤Êµ´Ë¶Î´úÂëÊDz»ÄÜʵÏÖ£¨ÖÁÉÙÔÚÎÒµÄϵͳÀïÊÇÕâÑùµÄ£©×÷ÕßÏëÒª»ñµÃµÄ½á¹ûµÄ¡£¾­¹ý×Ô¼ººÜ³¤Ê±¼äµÄgoogleÖ®ºó£¬
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www.phpchina.com
www.php.cn
µÚÒ»´Î¾ÍдÕâô¶à°É£¬ÒÔºó¾Í°ÑÕâÀïµ±×öÒ»¸ö±Ê¼Ç±¾°É£¬¼øÖ¤×Ô¼ºµÄ×ã¼£°É¡£ ......

php±éÀúËùÓÐÎļþ¼°Îļþ¼ÐµÄ·½·¨

 1.·½·¨Ò»£º
<?
$dir="D:";
static $dir_list =0;
static $file_list =0;
function listfile($dir){
global $dir_list,$file_list;
$d = dir($dir);
while ( $entry = $d->read()) {
$tem_curnt=$dir."/".$entry;
if($entry=="." || $entry=="..") continue;
if ( is_dir( $tem_curnt)) {
listfile($tem_curnt);
echo "Îļþ¼Ð ".$tem_curnt."<br>";
$dir_list++;
}
elseif ( is_file($tem_curnt)) {
echo "Îļþ".$tem_curnt."<BR>";
$file_list++;
}
}
$d->close();
}
listfile($dir);
echo "Ŀ¼Êý:".$dir_list;
echo"<br>";
echo"ÎļþÊý£º".$file_list;
?>
2.·½·¨¶þ£º
<?php
function list_dir($dirpath){
if($dirpath[strlen($dirpath)]-1!='/'){
$dirpath.="/";
}
static $result_array=array();
if(is_dir($dirpath)){
$files_dirs=scandir($dirpath);
foreach($files_dirs as $file){
if($file=='.'||$file=='..'){continue;}
if(is_dir($dirpath.$file)){
list_dir($dirpath.$file);
}else{
array_push($result_array,$dirpath.$file ......
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