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<?php
if($_POST['str'])
{
header('Content-type: application/doc');
header('Content-Disposition: attachment; filename="downloaded.doc"');
echo iconv("UTF-8","GB2312",$_POST['str']);
}
?>
<a href="javascript:void(0)" onclick="downword()">ÏÂÔØ</a>
<div id="word" style="display:none">¼ÓÏ¢Ô¤ÆÚÏÂÒøÐÐÔÙÍÆ¹ÌÏ¢·¿´û
</div>
<form action="" method="POST" name="form">
<textarea style="display:none" name="str"  id="down"/></textarea>
</form>
<script>
function downword()
{
 var doc=document.getElementById("word").innerHTML;
 document.getElementById("down").value=doc;
 document.form.submit();
}
</script>
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"I am a string in double quotes"
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<?php
function foo($arg)
{
return $arg
}
?>
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<?php
function foo($arg = NULL)
{
return $arg == NULL ? "" : $arg;
}
?>
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¡¡¡¡PHP ÖУ¬Êý¾Ýͨ³£¶¼ÊÇ´æ´¢ÔÚMySQLÊý¾Ý¿âµ±Öеġ£µ«ÊÇÓÐЩʱºò£¬ÎÒÃÇ»¹ÊÇÐèҪʹÓÃPHP¶ÁдһЩ±¾µØÎļþ¡£±ÈÈçÉú³É¾²Ì¬Ò³Ãæ»òÕßÊý¾ÝµÄ±¾µØ»º´æ¡£
¡¡¡¡ÎÒÃÇÓÃÒ»¸ö¼òµ¥µÄ·ÃÎÊÈÕÖ¾À´ÑÝʾһÏÂfopen, fread, fwrite, fcloseµÄÓ÷¨¡£
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php ¶ÔÎļþ²Ù×÷

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      Ê×ÏÈÊÇ´ÓĿ¼¶ÁÈ¡µÄº¯Êý,opendir(),readdir(),closedir(),ʹÓõÄʱºòÊÇÏÈ´ò¿ªÎļþ¾ä±ú,¶øºóµü´úÁгö:
<?php
$base_dir="filelist/";
$fso=opendir($base_dir);
echo  $base_dir."<hr/>";
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PHP¼ÆËãÒ³ÃæÖ´ÐÐʱ¼ä

run_time.php  Code:
<?php
class runtime
{
var $StartTime = 0;
var $StopTime = 0;
function get_microtime()
{
list($usec, $sec) = explode(' ', microtime());
return ((float)$usec + (float)$sec);
}
function start()
{
$this->StartTime = $this->get_microtime();
}
f ......
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