[SOLVED] problem with preg_match

[Vidya_tr]

Suppose my file is 'sample.flv'.

Using the code below,

 

preg_match('/^(.*)(\..*)?$/', $name, $matches);

 

$extension = $matches[2];

 

I expect to get $extension=.flv .But I get nothing in $extension. please help me to fix the error.

 

[thebadbad]

You need to make the first parenthesized pattern non-greedy, so it won't just match the whole string, and leave nothing for the rest of the pattern. Do it by adding a question mark after the asterisk:

 

<?php
$name = 'sample.flv';
preg_match('/^(.*?)(\..*)?$/', $name, $matches);
$extension = $matches[2];
?>

 

But that code will only work on filenames without dots in the name. A simple and faster way to get the file extension every time:

 

<?php
$name = 'sample.new.flv';
$parts = explode('.', $name);
$extension = end($parts);
?>