NYCPHP Meetup

[nycphp-talk] Reading just a couple lines of a file?

Tom Melendez tom at supertom.com
Wed Mar 26 13:26:48 EDT 2008


Only going to do this once?  Any chance that you'll want to
extract/manipulate data from these files later on?  Would it make
sense to batch load them into a DB and work with them via SQL somehow
so you could work with them later?  Or process in the background?

Thanks,

Tom
http://www.liphp.org



On Wed, Mar 26, 2008 at 9:28 AM, Donald J Organ IV
<dorgan at donaldorgan.com> wrote:
>
>  if its valid xhtml you could always use SimpleXML, and just get the title.
>  http://www.php.net/SimpleXML
>
>
>  csnyder wrote:
>  On 3/26/08, Ben Sgro <ben at projectskyline.com> wrote:
>
>
>  Hello,
>
>  Performance: Yeah, you don't have to hold the entire file in memory. Use
>  fopen/fread and iterate through
>  with a buffer size.
>
>
>  - Ben
>
>  And since you're searching for something specific, you can even just
> go line by line using fgets() till you find what you want:
>
> $fp = fopen( $file, r );
> while( !feof($fp) ) {
>  $line = fgets( $fp );
>  if ( strpos( $line, '<title' ) !== FALSE ) {
>  break;
>  }
> }
> if ( !feof( $fp ) ) {
>  // get title out of $line here
> }
>
> Since you're working with big files, it makes sense to build a better
> limit into the while loop, to bail out if the title isn't found after
> 99 lines or something.
>
>
>
>
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