Description
string 
fdf_save_string ( resource fdf_document)
   The fdf_save_string() function returns the FDF document as a string.
  
   
例子 1. Retrieving FDF as a string 
<?php $fdf = fdf_create(); fdf_set_value($fdf, "foo", "bar"); $str = fdf_save_string($fdf); fdf_close($fdf); echo $str; ?>
 |  
 
     will output something like
     %FDF-1.2
%忏嫌
1 0 obj
<< 
/FDF << /Fields 2 0 R >> 
>> 
endobj
2 0 obj
[ 
<< /T (foo)/V (bar)>> 
]
endobj
trailer
<<
/Root 1 0 R 
>>
%%EOF  |  
  | 
  
   See also fdf_save(),
   fdf_open_string(), 
   fdf_create() and 
   fdf_close().