I can't match the results with a <.

Ask for help: Add a <就无法匹配到结果了

$str = ' ADFEFDFDF
  
   2014/5/2fafefdfef. ';
   
Preg_match_all (' #if \s+codition= (. *) \s*> #U ', $str, $arr);
   
Echo '
   
';
Print_r ($arr);

   
No
   <得到的结果是

    <>
    

   
   

Array
(
    [0] = = Array
        (
            [0] = if codition= ("{$name} eq 1") >
        )

    [1] = = Array
        (
            [0] = = ("{$name} eq 1")
        )

)

   
But
   
Have <
   

   
 
 $str = ' adfefdfdf 
     
       Preg_match_all (' # 
      
        #U ', $str, $arr); 
       
 Echo ' 
       
 Print_r ($arr);            
 
 
       
 Results 
       
 
       
 
 Array 
 (
 [0] + = Array 
 (
 [0] = = 
) 
 
 [1] = = Array 
 (
 [0] = ("{$name} eq 1") 
)  
) 
 
 
        
 Why did you add a name that doesn't match the result, or is it not a meta-character, who can answer it? 
 
------Solution--------------------
 You'll know the source file in your browser 
 
 
        
          The browser is interpreted as HTML tag 
         
 with the pre is not able to block, to use the XMP line 
         
 