Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

phpÖÐÅжÏ×Ô¶¨Òå·½·¨ÊÇ·ñ´æÔÚ

<?php
 
 
  function myFun(){
   echo "hello,ÕÅÈý";
  }
 
  //ÀûÓÃfunction_exists·½·¨ÅжÏ×Ô¶¯ÒÔ·½·¨ÊÇ·ñ´æÔÚ
  //¸Ã·½·¨²ÎÊýΪҪÅжϵÄ×Ô¶¨Òå·½·¨µÄ·½·¨Ãû£¬¿ÉдΪ
  //"myFun"»òmyFun
  if(function_exists(myFun)){
   echo "´æÔÚ";
  }else{
   echo "²»´æÔÚ";
  }
?>


Ïà¹ØÎĵµ£º

phpÖ®Ôì³µÂÛ

ÏÖÔÚphpÓкܶ࿪·¢¿ò¼Ü£¬±ÈÈçzendµÄzendframe——Ò»¸öЧÂʺܵͣ¬µ«ÍþÁ¦ºÜ´óµÄ¾ÞÈË£¬symfony——Ò»¸öÊÊÓôóÐÍÓ¦ÓÃÈ´Ìå»ýÇáÇɵİïÊÖ£¬cakephp£¬codelgniter£¬thinkphp£¬fleaPHPµÈµÈÓÅÐã×÷Æ·¡£
Ò²ÐíÒòΪÕâ¸öÔ­Òò£¬phpºÜÄѳÉΪÖ÷Á÷¡£Ñ¡Ôñ¶àÁË·´¶ø²»ÖªµÀÑ¡ÔñÄĸöºÃ¡£²»ÏñjavaÓÐͳһµÄÖ÷Á÷¿ò¼Ü£¬Äã¿ÉÒÔÑ¡Ôñe ......

php»ñÈ¡¿Í»§¶ËIPµØÖ·µÄ¼¸ÖÖ·½·¨

PHP Code one: //php»ñÈ¡ipµÄËã·¨
$iipp=$_SERVER["REMOTE_ADDR"];
echo $iipp; PHP Code two: //php»ñÈ¡ipµÄËã·¨
$user_IP = ($_SERVER["HTTP_VIA"]) ? $_SERVER["HTTP_X_FORWARDED_FOR"] : $_SERVER["REMOTE_ADDR"];
$user_IP = ($user_IP) ? $user_IP : $_SERVER["REMOTE_ADDR"];
echo $ ......

phpɾ³ýÎļþ


ÈçºÎÓÃphpɾ³ýÎļþÄØ£¿
phpÖÐÓиöº¯Êý½Ð×÷unlink¡£Ö»ÒªÒ»¸ö²ÎÊý£¬±íʾÎļþ·¾¶¾ÍÐÐÁË¡£
bool unlink ( string filename)
³É¹¦É¾³ý·µ»ØÕ棬·ñÔò·µ»Ø¼Ù¡£
Õâ´ÎÎÒÔÚÏîÄ¿ÖУ¬ÐèÒªÓõ½É¾³ýÎļþ²Ù×÷¡£ÎªÁËÍêÃÀµÄ²Ù×÷£¬Ê×ÏÈÒªÅжÏÒ»ÏÂÕâ¸ö·¾¶µÄÎļþÊÇ·ñ´æÔÚ£¬ÓÃfile_existsº¯Êý¡£ÈçÈô´æÔÚ£¬Ôòȥɾ³ýÎļþ¡£¾ßÌå´úÂëÈçÏ£º
i ......

PHP³ÌÐòºÍMySqlÊý¾ÝÂÒÂëÎÊÌâÔ­Òò¼°½â¾ö

PHP³ÌÐòºÍMySqlÊý¾ÝÂÒÂëÎÊÌâÔ­Òò¼°½â¾ö
ÂÒÂëÎÊÌâ¼òµ¥Ëµ¾ÍÊÇÊý¾Ý¿âдÈë¶ÁÈ¡£¬ÍøÒ³Îļþ£¬ÍøÒ³ÏÔʾʱ¼¸¸ö»·½ÚµÄ±àÂë²»Ò»ÖÂÔì³ÉµÄ¡£
ÂÒÂëÎÊÌâ
дÈëʱ£ºÒ³ÃæÌáȡдÈëÊý¾Ý±àÂëºÍдÈëÊý¾Ý¿âʱ±àÂë²»Ò»ÖÂ
¶Áȡʱ£º¶ÁÈ¡ºóËùÓñàÂëÓëÊý¾Ý¿âдÈëʱ²»Ò»ÖÂ
ÏÔʾʱ£º±àÂëÓëÊý¾Ý¿â¶ÁÈ¡ºóµÄÊý¾Ý²»Ò»ÖÂ
ºÜÏÔȻֻÓÐÈýÕß¶¼Í³Ò»²ÅÐУ ......

php while Óëdo whileµÄÇø±ð

±¾½Ì³ÌÀ´½²Ò»Ï¹ØÓÚÔÚphp±à³ÌÖг£Óõ½µÄÑ­»·Óï¾ädo whileÓëwhileµÄÇø±ð°É£¬while Êǵ±Ìõ¼þÎªÕæÊDzÅÖ´Ðжødo whileÖÁÉÙ»áÖ´ÐÐһϣ¬ÏÂÃæÎÒÃǾÍÀ´¿´¿´
do {
}while(Ìõ¼þ)
¿´do whileµÄʵÀý°É¡£
<?
$a =10;
do {
echo $a;
}while ($a>11)
ÕâÀï»áÊä³ö10;È»ºóÑ­»·ÖÕÖ¹£¬ÄÇôÎÒÃÇÀ´¿´¿´whileµÄʵÀý°É¡£
$a=10;
w ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ