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PHP header() examples

 //ÓÃÕâ¸öheaderÖ¸ÁîÀ´½â¾öURLÖØд²úÉúµÄ404 header     
header('HTTP/1.1 200 OK');     
   
// Ò³ÃæûÕÒµ½     
header('HTTP/1.1 404 Not Found');     
   
// ·ÃÎÊÊÜÏÞ     
header('HTTP/1.1 403 Forbidden');     
   
// The page moved permanently should be used for     
// all redrictions, because search engines know     
// what's going on and can easily update their urls.     
//Ò³Ãæ±»ÓÀ¾Ãɾ³ý£¬¿ÉÒÔ¸æËßËÑË÷ÒýÇæ¸üÐÂËüÃǵÄurls     
//PS:µÚÒ»´ÎÅöµ½Õâ¸öÖ¸Á²»ÖªµÀÄܲ»ÄÜÓÃÀ´°Ñ×Ô¼ºµÄÕ¾µã´ÓËÑË÷ÒýÇæÖÐɾ³ýÄØ£¿     
header('HTTP/1.1 301 Moved Permanently');    
// ·þÎñÆ÷´íÎó    
header('HTTP/1.1 500 Internal Server Error');    
// Öض¨Ïòµ½Ò»¸öеÄλÖà   
header('Location: http://www.example.org/');     
   
// ÑÓ³ÙÒ»¶Îʱ¼äºóÖض¨Ïò     
header('Refresh: 10; url=http://www.example.org/');     
print 'You will be redirected in 10 seconds';    
// Ò²¿ÉÒÔʹÓÃHTMLÓï·¨À´ÊµÏÖÑÓ³Ù    
// zip"');     
header('Content-Transfer-Encoding: binary');     
// ¼ÓÔØÒªÏÂÔصÄÎļþ:     
readfile('example.zip');     
   
// ½ûÖ¹»º´æµ±Ç°Îĵµ:&n


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php ʱ¼äת»¯º¯ÊýʵÀý

phpÖÐÈÕÆÚת»»º¯ÊýstrtotimeµÄÓ÷¨:
Óï·¨:
int strtotime ( string time [, int now] )
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Ò»£¬»ñÈ¡Ö¸¶¨ÈÕÆÚµÄunixʱ¼ä´Á strtotime("2009-1-22") ʾÀýÈçÏ£º
echo strtotime("2009-1-22") ½á¹û£º1232553600
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phpÉèÖÃsessionµÄÉú´æÖÜÆÚ

sessionÎļþ±£´æÔÚ·þÎñÆ÷£¬¶Ôÿ¸ösession¶¼»áËæ»úÉú³ÉÒ»¸öΨһµÄsessionIdÀ´½øÐбêʶ£¬Ò»°ãÈç¹ûûÓÐÉèÖÃsessionµÄÉú´æÖÜÆÚ£¬Ôòsession»á±£´æÔÚÄÚ´æÖУ¬¹Ø±Õä¯ÀÀÆ÷£¬¸Ãsessionid»á×Ô¶¯×¢Ïú£¬ÖØÐÂÇëÇóʱÔò×Ô¶¯ÖØзÖÅä¡£
Èç¹û¿Í»§¶ËûÓнûÓÃcookie£¬ÔòÔÚʹÓÃsessionʱ£¬cookie»á°èÑÝ´æ´¢sessionIdºÍsessionÉú´æÖÜÆڵĽÇÉ«¡£¡ ......

phpÈ¡ÉÏÒ»¸öÒ³ÃæÖÐcheckboxÑ¡ÖеÄÖµ

 <?
$music = $_POST['music'];
//È¡µÃËùÑ¡ÖеÄcheckboxµÄ¸öÊý
$coun=count($music);
if ( is_array( $music ) ) {
    echo 'ÄúÑ¡ÔñµÄÊÇ&nbsp;:&nbsp;';
    foreach ( $music as $key => $var )
      echo '&nbsp;&nbsp;['.$var.']';
......

ʹPHP¼´Ê±Êä³ö½á¹ûµ½ä¯ÀÀÆ÷

PHP:
<?php
for
(
$i
=
0
;
$i
<
10
;
$i
++
)
{
    echo
$i
;
    sleep
(
1
)
;
}
?>
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phpÁ¬½ÓmysqlÏê½â

 Èç¹ûÖ»ÊÇÒ»¸öÊý¾Ý¿âµÄ»°£¬ÎÒÃÇÒ»°ãÏ°¹ßÕâÑùд£ºmysql_select_db("guestbook")£»
mysql_query('select * from users');
µ«ÊÇÈç¹ûÊÇÁ¬½Ó¶à¸ömysql£¬ÓпÉÄܳöÏÖͬÃûµÄÊý¾Ý¿â£¬»òÕßÊý¾Ý¿âÖгöÏÖͬÃûµÄ±í£¬ËùÒԾͱØÐëÓÃÍêÕûµÄÐÎʽÁË£¬ÈçÏ´úÂ룺
<?php
$link1 = mysql_connect('localhost1','root','root');
mysql ......
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