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<?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";
$funname("This is a function !");
?>  
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<?php
function($a) {
$a ++;
}
$c = 0;
function($c);
echo $c; //$cÈÔΪ0
function(&$a) {
$a ++;
}
$c = 0;
echo $c; //$cΪ1
?>  
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<?php
$file = fopen('your file path','r');
while(!feof($file)){ //µ±Ã»ÓжÁÈ¡µ½Îļþ½á⣬¼ÌÐøÑ­»·¶ÁÈ¡²Ù×÷
$line = fgets($file); //¶ÁÈ¡µ½Ò»ÐеÄÄÚÈÝ
echo $line.'<br/>';
}
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     '"php.exe"' is not recognized as an internal or external command, operable program or batch file.
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LinuxÏ php5 MySQL5 Apache2 °²×°ÓëÅäÖÃ


mkdir /downloads
chown -R root:root /downloads
chmod -R 774 /downloads
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        shell> cd /downloads
     ......
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