PHP failed to open stream: Is a directory

Question

Very simple PHP script I'm running within an EE template on an Ubuntu Webserver I set up personally.

I know it has something to do with permissions, and I've already changed the owner of the directory I'm trying to write as being the Apache user.

<?php 

$dir = 'export';

$drop =' {exp:ajw_export 
    sql="SELECT member_id, screen_name, email FROM exp_members" 
    format="xml" 
} ';

echo $dir;

file_put_contents($dir, $drop);

?>

Error I get is:

A PHP Error was encountered

Severity: Warning

Message: file_put_contents(export): failed to open stream: Is a directory

Filename: libraries/Functions.php(689) : eval()'d code

Line Number: 16

Answer 1

Your problem is that you're not defining the actual file, only a directory.

$file = $dir . '/export.txt';
file_put_contents($file, $drop);

Otherwise, how will PHP know where to place the content?