How to determine whether it is a file or a folder in php

php method to determine whether it is a file or a folder: first use the is_dir() function to determine whether the specified file is a folder, and if so, return true; then use the is_file() function to determine whether the specified file is a folder. Regular file, returns true if it is.

is_dir() function checks whether the specified file is a directory. If the directory exists, this function returns TRUE.

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Syntax:

is_dir(file)

is_file() function checks whether the specified file is a regular file. If the file is a regular file, this function returns TRUE.

Grammar:

is_file(file)

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Example 1:

<?php
$file = "images";
if(is_dir($file))
{
echo ("$file is a directory");
}
else
{
echo ("$file is not a directory");
}
?>

Output Result:

images is a directory

Example 2:

<?php
$file = "test.txt";
if(is_file($file))
{
echo ("$file is a regular file");
}
else
{
echo ("$file is not a regular file");
}
?>

Output:

test.txt is a regular file

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