writing to a new line in text file

[dd09]

$str=TITLE CRYSTAL STRUCTURE OF THE HIGHLY DISTORTED CHIMERIC DECAMER TITLE 2 R(C)D(CGGCGCCG)R(G)-SPERMINE COMPLEX-SPERMINE BINDING TO TITLE 3 PHOSPHATE ONLY AND MINOR GROOVE TERTIARY BASE-PAIRING

i want to print the above $str content like the below in the text file ...please help with it....
i m using the following code

file_put_contents('BBB.txt',$str);

TITLE CRYSTAL STRUCTURE OF THE HIGHLY DISTORTED CHIMERIC DECAMER
TITLE 2 R(C)D(CGGCGCCG)R(G)-SPERMINE COMPLEX-SPERMINE BINDING TO
TITLE 3 PHOSPHATE ONLY AND MINOR GROOVE TERTIARY BASE-PAIRING

[johnj]

use strpos() to find the position of TITLE 2 and TITLE 3 and then extract that string using substr().

[dd09]

thanks john for ur reply

i have already parsed the title section from the text file ....
but while storing in another text file it is passed as a string.

text file from which i m parsing is...

HEADER DNA-RNA HYBRID 05-DEC-94 100D
TITLE CRYSTAL STRUCTURE OF THE HIGHLY DISTORTED CHIMERIC DECAMER
TITLE 2 R(C)D(CGGCGCCG)R(G)-SPERMINE COMPLEX-SPERMINE BINDING TO
TITLE 3 PHOSPHATE ONLY AND MINOR GROOVE TERTIARY BASE-PAIRING
COMPND MOL_ID: 1;

here is the code.....

Code: Select all

<?php
session_start();
?>
<?php
$_SESSION['']="";
$str='';
$line='';
//$pdb = file_get_contents($_SESSION['pdb']);
//echo $_SESSION['pdb'];
$files = $_SESSION['pdb'];

$afile=explode("\n",$files);
  foreach($afile as $line)
   {
    if (preg_match('/^TITLE.*.$/',$line))
   {
   echo "<pre>$line</pre>"; 
     $str.=$line; 
     }
   }
   unset($line);
   file_put_contents('BBB.txt',$string);
 ?>