Can anyone help me change this script to use preg_split (recommended substitute by php.net) instead of split which is not used anymore. This function gets the file extension of any uploaded file in the variable $filename.
function findExtension ($filename)
{
$filename = strtolower($filename) ;
$exts = split("[/\\.]", $filename) ;
$n = count($exts)-1;
$exts = $exts[$n];
return $exts;
}
You should just use pathinfo instead:
$path_parts = pathinfo('/www/htdocs/inc/lib.inc.php');
echo $path_parts['dirname'], "\n";
echo $path_parts['basename'], "\n";
echo $path_parts['extension'], "\n";
echo $path_parts['filename'], "\n"; // since PHP 5.2.0
Why don't u use this function : http://www.php.net/manual/fr/function.finfo-file.php or this one : https://www.php.net/manual/fr/function.pathinfo.php
you can also use explode
function findExtension ($filename)
{
$filename = strtolower($filename) ;
$exts = explode(".", $filename) ;
$n = count($exts)-1;
$exts = $exts[$n];
return $exts;
}
I prefer a function David Walsh posted, that uses the "strrchr" function to get the last occurrence of "." in a string.
function get_file_extension($file_name)
{
return substr(strrchr($file_name,'.'),1);
}
If the file extension is the only part you want:
function GetExt($filename) {
return (($pos = strrpos($filename, '.')) !== false ? substr($filename, $pos+1) : '');
}
Perhaps something along these lines?
$string = "some/path_to_a_file.txt";
$pattern = preg_split('/\./', $string, -1, PREG_SPLIT_OFFSET_CAPTURE);
My code will give file extension, removing query strings. pathinfo also return extension with string. so use my code if you want to know the exact file name:
$filename = 'http://doamin/js.jquery.min.js?v1.1.11';
preg_replace('/\?.*/', '', substr(strrchr($filename, '.'), 1));
// output: js
