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     1¡¢±äÁ¿¡¢Êý×éµÄÓ¦Óü¼ÇÉ
     (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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//yum°²×°
yum -y install mysql mysql_server
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chkconfig --add mysqld
//·þÎñÆô¶¯
service mysqld start
//³õʼ»¯mysqlÊý¾Ý¿â
/usr/bin/mysql_secure_installation
£¨2£©¡¢°²×°apache
yum -y install httpd
service httpd start
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PHP: global static ºÍ$GLOBALS$ʹÓÃÓëÇø±ð

1.globalÔÚÕû¸öÒ³ÃæÆð×÷Óá£
2.staticÖ»ÔÚfunctionºÍclassÄÚÆð×÷Óá£
globalºÍ$GLOBALSʹÓûù±¾Ïàͬ£¬µ«ÔÚʵ¼Ê¿ª·¢Öдó²»Ïàͬ¡£
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$GLOBALS[]ȷȷʵʵµ÷ÓÃÊÇÍⲿµÄ±äÁ¿£ ......

PHP¼òµ¥¼ÆÊýÆ÷

 <?php
/*ʹÓÃÎı¾Îļþ¼Ç¼Êý¾ÝµÄ¼òµ¥ÊµÏÖ*/
$counter=1;
if(file_exists("mycounter.txt")){
$fp=fopen("mycounter.txt","r");
$counter=fgets($fp,9);
$counter++;
fclose($fp);
}
$fp=fopen("mycounter.txt","w");
fputs($fp,$counter);
fclose($fp);
echo "<h1>ÄúÊǵÚ".$counter."´Î·ÃÎʱ¾Ò³ ......

СÒé»ùÓÚPHPµÄWebÊý¾Ý¿â·ÃÎÊ

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PHP MySQL ODBC
1. ÒýÑÔ
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linux·þÎñÆ÷ÓÃlighttpd+mysql5+php5+SupeSite/X

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2¡¢²âÊÔÔÚvm5.5
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mysql-5.0.41
part1ÏÂÔØµØÖ·
part2ÏÂÔØµØÖ·
part3ÏÂÔØµØÖ·
php-5.2.3
ÏÂÔØµØÖ·
SupeSite/X-Space
part1ÏÂÔØµØÖ·
part2ÏÂÔØµØÖ·
part3ÏÂÔØµØÖ·
discuz
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1¡¢mysql5°²×°
$ tar zx ......
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