unlink（/ home / goode / public_html / private / uploads / 405 /）：是一个目录，但是检查了file_exist

In my form, I have more then 10 file uploads fields,

I have checked file exist though it is giving me error as below

my code is below,

 if (file_exists($filename))
                unlink($filename);

still it gives me error like below,

unlink(/home/goode/public_html/private/uploads/405/): Is a directory

You can change your code to:

if (is_file($filename)){
    unlink($filename);
}

The is_file function checks if it's a file. file_exists checks if it's a file OR directory. A bit confusing I will admit.

For example, if

$filename = image.jpg

to proceed with your approach you should use,

if (file_exists(/home/goode/public_html/private/uploads/405/$filename)){
unlink(/home/goode/public_html/private/uploads/405/$filename);
}

$filename = /home/goode/public_html/private/uploads/405/image.jpg

you should use,

 if (file_exists($filename)){
    unlink($filename);
 }

Intelligent people always understand the others mean. It's not any big deal.

Of course, file_exists function can be used to determine whether the exact file exists in a given directory.

I created a demonstration page for those who have misconception about file_exists function.

I hope it helps others who are eager to learn the facts. A single task can be done in many ways in PHP.