PHP½ØÈ¡¹Ì¶¨³¤¶È×Ö·û´®º¯Êý
<?php
function toFixLen($str,$len){ //¹Ì¶¨³¤¶È×Ö·û´®µÄ½ØÈ¡
if($len>=strlen($str)||!$len) return $str;
$len-=3;
$tempstr1 = substr($str,0,$len); //½ØÈ¡×Ö·û´®
$tempstr2 = preg_replace('/([\x81-\xff]+)$/ms','',$tempstr1,1); //È¥µô½áβµÄÁ¬Ðøºº×Ö×Ö·û
if(!is_int((strlen($tempstr1)-strlen($tempstr2))/2)){ //È¥µôµÄ×Ö·ûÎªÆæÊý?
$tempstr1 = substr($str,0,$len-1);
}
return $tempstr1."…";
}
?>
±¾ÎÄÀ´×ÔCSDN²©¿Í£¬×ªÔØÇë±êÃ÷³ö´¦£ºhttp://blog.csdn.net/renren000/archive/2009/02/02/3858694.aspx
Ïà¹ØÎĵµ£º
Éý»ªÌṩÖÕÉíÃâ·ÑASP+access PHP+mysqlÐéÄâÖ÷»ú
Ò»£ºÉý»ªÍøÂç¿Æ¼¼ÓÐÏÞ¹«Ë¾,ÓëÉý»ªÍ¬ÔÚÕ¾³¤ÖÕÉíÃâ·Ñ¿Õ¼ä·ö³Ö¼Æ»®.
1¡¢×ð¾´µÄÓû§ÄúºÃ,Ò²ÐíÄú»¹ÔÚΪÿÄêÒ»½»µÄ¿Õ¼ä·ÑÓ÷¢³î,Ò²ÐíÄúÏë»ñµÃÒ»¸ö¸üÓÅÖʵĿռäÈ´²»ÏëͶÈëÌ«¶à,´ÓÏÖÔÚÆð ÕâЩÎÊÌ⽫ÓÈжø½â→Éý»ªÍøÂç←ÓëÉý»ªÍ¬ÔÚÕ¾³¤·ö³Ö¼Æ»®È«ÃæÆô¶¯¡£
2¡¢Ã»ÓÐ×¢²á¹«Ë¾ ......
phpÖУ¬¹ØÓÚÕû³ýµÄ3¸öº¯Êý
2008-10-23 23:25
Ceil: ¼ÆËã´óÓÚÖ¸¶¨ÊýµÄ×îСÕûÊý¡£
Floor: ¼ÆËãСÓÚÖ¸¶¨ÊýµÄ×î´óÕûÊý¡£
round: ËÄÉáÎåÈë¡£
¸ù¾ÝÐèҪѡÓÃ
<?php
$a=20;
$b = 6;
echo ($a/$b)."<br>"; //out 3.3333333333333
echo ceil($a/$b)."<br>"; //out 4
echo floor($a/$b)."<br> ......
<?php
/*
ͼƬ´¦Àíº¯Êý¹¦ÄÜ£ºËõ·Å¡¢¼ôÇС¢Ïà¿ò¡¢Ë®Ó¡¡¢Èñ»¯¡¢Ðýת¡¢·×ª¡¢Í¸Ã÷¶È¡¢·´É«
´¦Àí²¢±£´æÀúÊ·¼Ç¼µÄ˼·£ºµ±ÓÐͼƬÓиĶ¯Ê±×Ô¶¯Éú³ÉÒ»ÕÅÐÂͼƬ£¬ÃüÃû·½Ê½¿ÉÒÔ¿¼ÂÇÔÚÔͼƬµÄ»ù´¡ÉϼÓÉϲ½Ö裬ÀýÈ磺ͼƬÃû³Æ+__µÚ¼¸²½
*/
class picture{
var $PICTURE_URL;//Òª´¦ÀíµÄͼƬ
var $DEST_URL="temp__01.jpg" ......
ÎÊÌ⣺
ÄãÏë´´½¨Ò»¸ö¶ÔÏ󣬲¢ÔÚÆäÖÐÌí¼ÓһЩÊôÐÔ£¬µ«ÊÇÄãÈ´²»Ïë°ÑËü×÷Ϊһ¸öÃ÷È·µÄÀàÕýʽµØ¶¨ÒåËü¡£ÕâÒ»µãÔÚһЩÇé¿öÏÂÊÇÏ൱ÓÐÓõģ¬ÀýÈçµ±ÄãÐèÒª¶¨ÒåÒ»¸ö·½·¨À´·µ»Ø´øÓÐijЩÊôÐÔ£¨²»È·¶¨µÄ£©µÄ¶ÔÏóʱ£¬¾ÍÈçͬ´Ómysql_fetch_object( ) »òÕß imap_header( )µÄʹÓÃÒ»Ñù¡£
һάÊý×é,ÎÒÏÖÔÚÌØ±ðϲ»¶°ÑËüд³É¶ÔÏó,ÒòΪ¼üÅÌ´ ......