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ltrim();//È¥µô×Ö·û´®×ó¿Õ¸ñ; 
rtrim();//È¥µô×Ö·û´®ÓÒ¿Õ¸ñ; 
trim(); //È¥µô×Ö·û´®Á½±ß¿Õ¸ñ; 
         //È¥µô¿Õ¸ñÊÇ·µ»ØÒ»¸öеÄ×Ö·û´®;Ô×Ö·û´®²»±ä; 
strlen();     //¼ÆËã×Ö·û´®³¤¶È; 
strrev();     //½«×Ö·û´®µßµ¹µÄº¯Êý; 
strtolower();//½«×Ö·û´®´óдת»»³ÉСд,ÔÀ´Ð¡Ð´µÄ²»±ä; 
strtoupper();//½«×Ö·û´®Ð¡Ð´×ª»»³É´óд,ÔÀ´´óдµÄ²»±ä; 
ucfirst();   //½«×Ö·û´®ÖеÚÒ»¸ö×Ö·ûת³É´óд; 
ucwords();   //½«×Ö·û´®ÖÐÿһ¸öµ¥´ÊµÄÊ××Öĸת³É´óд; 
str_repeat() //ÖØ¸´ÏÔʾ×Ö·û´®,µÚ¶þ¸ö¶ÔÊýÉè¶¨ÖØ¸´´ÎÊýstr_repeat($str,rand(1,10))
explode(string separator,string string,[ ,int limit]);//ʹÓÃÒ»¸ö×Ö·û´®·Ö¸îÁíÒ»¸ö×Ö·û´®; 
     string separator://ÊDZ»°´ÕÕ·ÖµÄ×Ö·û´®; 
     string string:   //ÊDZ»·ÖµÄ×Ö·û´®; 
     int limit:       //ÏÞÖÆ×÷ÓÃ,ÈçΪ3,¼´Ç°Á½¸ö²¿·Öµ¥¶À·Ö¿ª,ÆäËûºóÃæÎªÒ»²¿·Ö; 
implode(string glue,array pieces);//½«½ÏСµÄ×Ö·û´®ºÏ²¢³ÉÒ»¸ö´óµÄ×Ö·û´®; 
     string glue://×Ö·û´®Á¬½ÓµÄ·ûºÅ; 
join()(imploadµÄ±ðÃûº¯Êý)://ºÍimploadÊÇÒ»ÑùµÄÓ÷¨; 
//×Ö·û´®½ØÈ¡ 
substr(string string, int start [ ,int length]);//È¡²¿·Ö×Ö·û´®; 
mb_substr() 
mb_strcut() 
   <?php 
   echo mb_substr('ÕâÑùÒ»À´ÎÒµÄ×Ö·û´®¾Í²»»áÓÐÂÒÂë^_^', 0, 7, 'utf-8'); 
   ?> 
   Êä³ö£ºÕâÑùÒ»À´ÎÒµÄ×Ö 
   <?php 
   echo mb_strcut('ÕâÑùÒ»À´ÎÒµÄ×Ö·û´®¾Í²»»áÓÐÂÒÂë^_^', 0, 7, 'utf-8'); 
   ?> 
   Êä³ö£ºÕâÑùÒ» 
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strstr(string,string);//·µ»Ø´ÓÖ¸¶¨×Ö·û´®µ½½áβµÄ×Ö·û´®;Ö¸¶¨µÄ×Ö·û´®¿ÉÒÔÊǶà¸ö×Ö·û; 
strchr()//strstr()µÄ±ðÃûº¯Êý,Ó÷¨Ò»Ñù; 
strpos(string, char, [int offset]);//·µ»ØÄ³×Ö·û´®ÖÐij¸ö×Ö·û"×îÏÈ"³öÏÖµÄλÖÃ; 
     char://Ö¸¶¨µÄ×Ö·û; 
    
     
	
	
    
    
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    #./configure   --prefix=/usr/local/php5   --with-config-file-path=/usr/local/php5   --with-apxs2=/usr/local/apache2/bin/apxs   --with-bz2   --with-curl -  --with-curlwrappers   --enable-ftp   --enable-sockets   --disable-ipv6   --with-gd   --with-jpeg-dir=/usr/local   --with-png-dir=/usr/local   --w ......
	
    
        
    
    
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    <? 
error_reporting(2047);#±¨¸æËùÓзǷ¨µÄ´íÎó 
ob_start(); 
function  RMB ($RMB=0,$Format='') { 
/* 
*/ 
    $RMB=@preg_Replace( 
        array('/([, ]|£¤|0$|)/','/(.){2,}/'), 
        array('','.'), 
        $RMB); 
    if(eregi("[^0-9.]",$RMB))return "·Ç·¨½ð¶î"; 
    if($RMB==0)retur ......
	
    
        
    
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