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     (1)ºÜ¶àÈËÓõò»¶àµÄÊý×麯Êý¡£foreach¡¢list¡¢each¡£·Ö±ð¾Ù¼¸¸öÀý×Ó£¬Ó¦¸Ã¾ÍÄÜÖªµÀÁË¡£Àý£º 
<?php
$data = array('a' => 'data1', 'b' => 'data2', 'c' => 'data3'); 
while(list($subscript, $value) = each($data)) 

   echo "$subscript => $value :: "; 
   echo "$subscript => $value <br>"; 
}
reset($data); 
foreach($data as $subscript => $value) 

   echo "$subscript => $value :: "; 
   echo "$subscript => $value <br>"; 

     (2)º¯ÊýµÄ±äÁ¿¡¢±äÁ¿µÄ±äÁ¿¡¢±äÁ¿µÄ“Ö¸Õ딣º¿´ÏÂÀý£º
<?php
//±äÁ¿µÄ±äÁ¿
$var = "this is a var";
$varname = "var";
echo $$varname;
//º¯ÊýµÄ±äÁ¿
function fun1($str) {
echo $str;
}
$funname = "fun1";
$funname("This is a function !");
?> 
     ±äÁ¿µÄ“Ö¸Õ딡£Õâ¸öÖ¸Õë¼ÓÉÏÁËË«ÒýºÅ£¬±íÃ÷Ëû²»ÊÇÕæÕýµÄÖ¸Õë¡£¿´¿´ÏÂÀý£º
 
<?php
function($a) {
$a ++;
}
$c = 0;
function($c);
echo $c; //$cÈÔΪ0
function(&$a) {
$a ++;
}
$c = 0;
echo $c; //$cΪ1
?> 
     Ö®ËùÒÔ³ÆÆäΪ“Ö¸Õ딣¬¾ÍÊÇÒòΪËûÓÐÁ˺ÍCÓïÑÔÖÐÖ¸ÕëÏàͬµÄ¹¦ÄÜ¡£µ«ÕâÓÖ²»ÊÇÕæÕýµÄÖ¸Õ룬ֻÄܹ»ÊÇÕâÑùµÄÈ¥Àí½â¡£
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lighttpd + mysql + php(fast cgi)°²×°ÓëÅäÖÃ

×¼±¸:
lighttpd-1.4.15.tar.gz
php-4.4.2.tar.gz
mysql-5.0.20a.tar.gz
¿ªÊ¼:
1 ±àÒë°²×°lighttpd
 # tar zxvf lighttpd-1.4.15.tar.gz
 # cd lighttpd-1.4.15
 #  ls
 # ./configure --prefix=/usr/local/lighttpd    //´Ë²¿ÎÞ·¨±àÒëʱÌáʾ°²×°prce-devel
 #&nbs ......

phpץȡalexaÍøÒ³ÄÚÈÝ Ìáȡվµãͳ¼ÆÐÅÏ¢

ÈÎÎñ£º¸ù¾ÝÊäÈëµÄÓòÃû ͳ¼ÆÒÔÏÂÈý¸öÊý¾Ý£¬µÚÒ»£ºÈ«ÇòÅÅÃû£»µÚ¶þ£ºÓû§Á¿£¨ÔÂÆ½¾ùÖµ£©£»µÚÈý£º
È˾ùÒ³Ãæ·ÃÎÊÁ¿£¨ÔÂÆ½¾ùÖµ£©¡£
˼·£ºÊ¹ÓÃget_file_contentsÌáÈ¡³öÍøÒ³ÄÚÈÝ£¬ÔÙ¸ù¾ÝÕýÔò±í´ïʽ½øÐÐÄÚÈݵÄɸѡ¡£
ºËÐĺ¯ÊýÈçÏ£º
<?php
/*
 the function of getting aleax data
 @param string partten  ......

phpÖÐʹÓÃheaderº¯ÊýµÄhttpÍ·ÉèÖÃ

/ ok
header('HTTP/1.1 200 OK');
//ÉèÖÃÒ»¸ö404Í·:
header('HTTP/1.1 404 Not Found');
//ÉèÖõØÖ·±»ÓÀ¾ÃµÄÖØ¶¨Ïò
header('HTTP/1.1 301 Moved Permanently');
//תµ½Ò»¸öеØÖ·
header('Location: http://www.example.org/'
);
//ÎļþÑÓ³ÙתÏò:
header('Refresh: 10; url=http://www.example.org/');
print 'Y ......

nginx + php + https ÅäÖÃÓÃÀý

#
Æô¶¯·þÎñµÄÓû§ºÍ×é
user
lighttpd lighttpd;
#
¿ª¶àÉÙ½ø³Ì
worker_processes
2;
#
´íÎóÈÕÖ¾
error_log
/data/log/nginx/nginx_error/nginx_error.log crit;
#
pid
pid
        /var/run/nginx.pid;
#
Specifies
the value for maximum file descriptors t ......

¡¾´ýÐ޸ġ¿validator±íµ¥ÑéÖ¤ÀàPHP°æ±¾

<?php
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/*php×ÔÉíµÄ¼ì²âº¯Êý
*bool is_numeric ( mixed var)
*bool is_bool ( mixed var)
*bool is_null ( mixed ......
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