The file_exists Function
The file_exists function checks for the existence of a file or directory at the specified path.
The function returns true if the file or directory exists, and false otherwise.
A string containing the absolute or relative path to the file is passed to the function parameter.
Syntax
file_exists(string $filename): bool
Example
Let's check if the file 'test.txt' exists in the current directory:
<?php
$res = file_exists('test.txt');
var_dump($res);
?>
Code execution result (if the file exists):
true
Example
Let's check for a non-existent file:
<?php
$res = file_exists('nonexistent_file.txt');
var_dump($res);
?>
Code execution result:
false
Example
Let's check if a directory exists:
<?php
$res = file_exists('images/');
var_dump($res);
?>
Code execution result (if the directory exists):
true
See Also
-
the
is_dirfunction,
which checks for a folder -
the
is_filefunction,
which checks for a file -
the
is_readablefunction,
which checks readability -
the
is_writablefunction,
which checks writability
