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Kamila

2016-08-16 12:43 AM

Best way to get files from a dir filtered by certain extension in php

So right now I have a directory and I am getting a list of files

Code:

$dir_f = "whatever/random/";

$files = scandir($dir_f);

That, however, retrieves every file in a directory. How would I retrive only files with a certain extension such as .ini in most efficient way.

Karen

2016-08-16 12:45 AM

PHP's glob() function let's you specify a pattern to search for. PHP has a great function to help you capture only the files you need. Its called glob()

glob - Find pathnames matching a pattern
Here is an example usage -

Code:

$files = array();

foreach (glob("/path/to/folder/*.txt") as $file) {

  $files[] = $file;

}

Kasen

2016-08-16 12:47 AM

Code:

<?php

foreach (glob("*.txt") as $filename) {

    echo "$filename size " . filesize($filename) . "\n";

}

?>

Code:

//path to directory to scan

$directory = "../file/";



//get all image files with a .txt extension.

$file= glob($directory . "*.txt ");



//print each file name

foreach($file as $filew)

{

echo $filew;

$files[] = $filew; // to create the array



}

Katelyn

2016-08-16 12:49 AM

8
down vote
If you want more than one extension searched, then preg_grep() is an alternative for filtering:

Code:

$files = preg_grep('~\.(jpeg|jpg|png)$~', scandir($dir_f));

Though glob has a similar extra syntax. This mostly makes sense if you have further conditions, add the ~i flag for case-insensitive, or can filter combined lists.
or

glob("{$dir}*.{jpg,*jpeg,gif,ico,png}", GLOB_BRACE). This would work as well for multiple extensions.

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