php»ñÈ¡ÔͼƬ
<?php
/*
»ñȡԶ³ÌͼƬº¯Êý
*/
function GrabImage($url,$filename=""){
//ÈôurlΪ¿Õ·µ»Øfalse£¬ÎÞµØÖ·
if($url=="") return false;
//Èô$filenameΪ¿Õ
if($filename=="") {
$ext=strrchr($url,"."); //»ñÈ¡"."¼Óºó׺
if($ext!=".gif"&&$ext!=".jpg"&&$ext!=".png") return false;
$filename=date("YmdHis").$ext;
}
ob_start();
readfile($url);
$img = ob_get_contents();
ob_end_clean();
$size = strlen($img);
$fp2=@fopen($filename,"a");
fwrite($fp2,$img);
fclose($fp2);
return $filename;
}
$img=GrabImage("http://www.google.com/intl/en_ALL/images/logo.gif","logo.gif");
if($img){
echo '<img src="'.$img.'" mce_src="'.$img.'">';
}else{
echo "false";
}
?>
Ïà¹ØÎĵµ£º
phpºÍjavaͨÓÃsqlÓï¾ä·¨
SELECT max(id) from table
¸Ã·½·¨ÔÚ¶àÏ̵߳ÈÇé¿öÏ¿ÉÄÜ»áÔì³É²»ÕýÈ·¡£
javaÈýÖÖ·½·¨
1¡¢¸ù¾ÝpsµÄgetGeneratedKeys
PreparedStatement ps = conn.prepareStatement(sql,Statement.RETURN_GENERATED_KEYS); //ºìÉ«Êǹؼü
ps.executeUpdate(); //Ö´Ðкó
ResultSet rs = ps.getGeneratedKeys ......
×î½üÓÐÈËÔÚÕбêÒª×ö¸öÏñ£ºwww.webjianzhi.com ÕâÑùµÄÈ˲ÅÕ¾£¬³õ¿´£¬Õâ¸öÍøÂç¼æÖ°Íø£¬½çÃæ»¹ÊDZȽÏÇåÎúµÄ¡£
ÕûÌå·ÖÎöÁËһϣ¬Ò»¸öÐÂÎÅÎÄÕ·¢²¼ÏµÍ³£¬Õâ¸ö²»ÊǺÜÄÑ£¬ÁíÒ»¸ö¾ÍÊÇ×ֶε÷ÓÃϵͳ£¬¾ÍÊÇÊ×Ò³µÄÖ°Òµ½éÉÜ£¬¼æÖ°ÈËÆø£¬µÄÕâЩµ÷Óá£
ÁíÒ»¸ö¾ÍÊÇ»áÔ±·¢²¼ÏµÍ³¡£
Õû¸öÓñí¸ñ²¼¾Ö£¬ÃÀ¹¤Éϲ»´æÔ ......
phpÖж¨½ç·û<<<µÄ×÷Óà - [phpÓï
ÑÔ
]
[Time:2009-08-18]
°æÈ¨ÉùÃ÷
£º×ªÔØÊ±ÇëÒÔ³¬Á´½ÓÐÎʽ±êÃ÷ÎÄÕÂÔʼ³ö´¦ºÍ×÷ÕßÐÅÏ¢¼°±¾ÉùÃ÷
ת×Ô:http://star210.blogbus.com/logs/44486135.html
ÒòΪPHPÊÇÒ»¸öWeb±à³ÌÓïÑÔ£¬ÔÚ±à³Ì¹ý³ÌÖÐÄÑÃâ»áÓöµ½ÓÃechoÀ´Êä³ö´ó¶ÎµÄhtmlºÍjavascript
½Å
±¾µÄÇé¿ö£¬Èç¹ûÓô«Í³µÄÊ ......
ÎÒд¹ýµÄ½Ì³Ì²»¶à£¬¶øÇҴ󲿷ֶ¼ÊÇÀ´Ô´ÓÚ±ðÈ˵Ľ̳̣¬²»¹ý£¬ÕâÀïËù½éÉܵ쬶¼ÊÇÈÚÈëÎÒËù×ܽáµÄ¾Ñ飮££ÒýÑÔ
¡¡¡¡
¡¡¡¡PHPµÄÖ´ÐÐЧÂÊÊÇÓÐÄ¿¹²¶ÃµÄ£¬ÕâÒ²ÊÇÎÒϲ»¶ËüµÄÔÒòÖ®Ò»£¬ºÍËü³ÆÎª¾øÃî´îµµµÄMysqlÒÔ¼°ApacheÏëÈںϣ¬²»Äܲ»¾ªÌ¾ÆäЧÂÊÁË¡£PHP¸üÐÂÒ²ºÜ¿ì£¬ÕâÀïÁоÙÁËĿǰ×îа汾PHP4.3.2RC4£¨¼¸ºõûÓÐBUGÁË£¬¹À¼ÆÐ´Í ......
Floating point precision
It is typical that simple decimal fractions like 0.1
or
0.7
cannot be converted into their internal binary
counterparts without a small loss of precision. This can lead to
confusing
results: for example, floor((0.1+0.7)*10)
will usually
return 7
......