php glob() if empty returns array on windows, none on linux

Question

At the moment I have:

$files = array_merge(
        glob($path_ . '*.js'),
        glob($path_ . '*.css'));

If the directories are empty on windows it returns an empty array. If they are empty on linux nothing is returned.

This produces this error on linux: Warning: array_merge() [function.array-merge]: Argument #1 is not an array

Windows: Apache:2.2.21 PHP:5.3.10
Linux/Debian: Apache:2.2.16 PHP:5.3.10

After some further research and testing I found that it is a bug in PHP: https://bugs.php.net/bug.php?id=53460

The quick dirty fix would be @array_merge(...)

Benjamin Crouzier
– Benjamin Crouzier

2012-04-06 11:55:11 +00:00
Commented Apr 6, 2012 at 11:55 — Benjamin Crouzier
– Benjamin Crouzier, Commented Apr 6, 2012 at 11:55

Benjamin Crouzier · Accepted Answer · 2012-04-06 11:57:38Z

4

From http://php.net/manual/en/function.glob.php:

Returns an array containing the matched files/directories, an empty array if no file matched or FALSE on error.

Check if glob($path_ . '*.js') === FALSE on linux. In this case, there is probably a permission error or something like this. It should be an empty array if there is no error, as the documentation suggests.

Also check for the case in your files/directory. Windows is case insensitive, that could explain a difference between windows and linux.

answered Apr 6, 2012 at 11:57

Benjamin Crouzier

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5 Comments

John Magnolia Over a year ago

You missed the part which says: On some systems it is impossible to distinguish between empty match and an error.

John Magnolia Over a year ago

Just checked and yes it is returning FALSE. The directory is empty so can't be a file issue.

Benjamin Crouzier Over a year ago

What happens if you do a scandir() or a file_exists() on your folder under linux ?

Benjamin Crouzier Over a year ago

You have the error Argument #1 is not an array, this means that glob($path_ . '*.css') does not produce an error ? Does glob() return false only with .js or with both ...*.js and ...*.css. Try that with an empty folder (no js NOR css files). You should obviously have the error in both cases. Also, can you tell us what is in $path variable ?

John Magnolia Over a year ago

After some further research and testing I found that it is a bug in PHP: bugs.php.net/bug.php?id=53460

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