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 Posted by Steve on 07/01/93 11:41 
"Jim Michaels" <NOSPAMFORjmichae3@yahoo.com> wrote in 
news:nPKdncjdLLnd-prZRVn-iw@comcast.com:  
 
 
>> 
>> $password = isset($HTTP_POST_VARS['password']) ?  
>> $HTTP_POST_VARS['password'] : ''; 
>> 
>> I have never seen the question mark or colon used in this way before. 
>>  I can't find any reference to it in my PHP book.  Please tell me 
>> what it means. 
 
 
 
I have always understood it as a simple "if" and "else". example 
 
$value = ( $a == $b ) ? $c : $d; 
 
So if vars $a == $b the variable $value will be set as $c if not the  
value $d 
 
i think there is another reason too but thats how i use it. Someone may  
give a better explanation.
 
  
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