(PHP 4, PHP 5, PHP 7)
Tells whether the filename is a regular file
bool is_file ( string $filename )
Tells whether the given file is a regular file.
Parameters:
filename
Path to the file.
Returns:
Returns TRUE if the filename exists and is a regular file, FALSE otherwise.
Note: Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected results for files which are larger than 2GB.
Exception:
Upon failure, an E_WARNING is emitted.
Notes:
The results of this function are cached. See clearstatcache() for more details.
Examples:
is_file() example
<?php
var_dump(is_file('a_file.txt')) . "\n";
var_dump(is_file('/usr/bin/')) . "\n";
?>
The above example will output:
bool(true) bool(false)
See also:
is_dir() -
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