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 ......
// µ¥ÐÐ×¢½â
/* */ ¶àÐÐ×¢½â
ÒýºÅµÄʹÓÃ
’ ’ µ¥ÒýºÅ,ûÓÐÈκÎÒâÒå,²»¾Èκδ¦ÀíÖ±½ÓÄùýÀ´;
" "Ë«ÒýºÅ,php¶¯Ì¬´¦ÀíÈ»ºóÊä³ö,Ò»°ãÓÃÓÚ±äÁ¿.
±äÁ¿ÐÎ̬:
Ò»ÖÖÊÇTrue ¼´ ÕæµÄ;
ÁíÒ»ÖÖÊÇFalse ¼´¼ÙµÄ
³£¼û±äÁ¿ÐÎ̬:
string ×Ö´®(Êý×Ö\ºº×Ö\µÈµÈ)
integer ÕûÊý(1¡¢2¡¢3¡¢4¡¢5¡¢0¡¢-1¡¢-2¡¢µÈµ ......
ת×Ô http://wiki.kuaizhanbao.com/2009/1210/245.html
basename — ·µ»ØÂ·¾¶ÖеÄÎļþÃû²¿·Ö
chgrp — ¸Ä±äÎļþËùÊôµÄ×é
chmod — ¸Ä±äÎļþģʽ
chown — ¸Ä±äÎļþµÄËùÓÐÕß
clearstatcache — Çå³ýÎļþ״̬»º´æ
copy — ¿½±´Îļþ
delete — ²Î¼û unlink() »ò unset()
di ......
is_intº¯Êý¶ÔÓÚFORM¹ýÀ´µÄÊý¾ÝÊÇûÓа취ÅжÏÊÇ·ñÊÇÕûÊýµÄ£¬ÒòΪFORM¹ýÀ´µÄÊÇ×Ö·û´®¡£ÓÃis_numeric¿ÉÒÔÅжÏÊÇ·ñΪÊý×ÖÀàÐÍ£¬ÉÔ¶¯ ÏÂÊֽžͿÉÒÔÅжÏÊDz»ÊÇÕûÊýÁË
if(!is_numeric($jp_total)||strpos($jp_total,".")!==false){
echo "²»ÊÇÕûÊý";
}else{
echo "ÊÇÕûÊý";
} ......