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<?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·ÃÎʱ¾Ò³Ã棡<h1>";
?>
<?php
//ÏÂÃæÕâ¸öΪʹÓûùÓÚÊý¾Ý¿âµÄ¼òµ¥¼ÆÊýÆ÷£¬Î´Ìí¼ÓÆäËû·ÀÖ¹Ò»ÈËÖØ¸´Ë¢Ðµķ½·¨¡£½ö¹©²Î¿¼¡£¡£
$conn=mysql_connect("localhost","root","abc");
$result=mysql_query("use db_counter");
$re=mysql_query("select * from tb_counter");
$result=mysql_fetch_row($re);
$counter=$result[0];
echo "ÄúÊǵÚ{$counter}λ·ÃÎÊÕߣ¡";
$counter+=1;echo "<hr>{$counter}";
mysql_query("update tb_counter set counter=$counter");
mysql_close($conn);
?>
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$a="hello";
$b=&$a;
unset($b);
$b="world";
echo $a;
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$aa="test";
function test()
{
global $aa;
echo $aa;
}
test(); //print test
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