PHP中的file_put_contents

Question

I just tried to use this file_put_contents . The code is:

$file = 'list.txt';
$subject = "Mail Subject\n";
file_put_contents($file, $subject);

But it doesn't put any contents. file_get_contents is working though.

Update: Problem solved. I'm not sure. I just changed chmod to 777. But I have a doubt. I am checking the log error.

Answer 1

Things to check:

• Your file path is relative. So your file may not be in the directory you think it is.
• Check that you have permission to create files in the directory containing your file, or that you have permissions to overwrite the existing file.
• Finally, file_put_contents returns the number of bytes written or false on error. Save the return value to a variable and see what you get back.