finfo_file

finfo::file

(PHP >= 5.3.0, PHP 7, PHP 8, PECL fileinfo >= 0.1.0)

finfo_file -- finfo::file — Return information about a file

Description

Procedural style

finfo_file(
    finfo $finfo,
    string $filename,
    int $flags = FILEINFO_NONE,
    ?resource $context = null
): string|false

Object-oriented style

public finfo::file(string $filename, int $flags = FILEINFO_NONE, ?resource $context = null): string|false

This function is used to get information about a file.

Parameters

finfo

An finfo instance, returned by finfo_open().

filename

Name of a file to be checked.

flags

One or disjunction of more Fileinfo constants.

context

For a description of contexts, refer to Stream Functions.

Return Values

Returns a textual description of the contents of the filename argument, or false if an error occurred.

Changelog

Version Description
8.1.0 The finfo parameter expects an finfo instance now; previously, a resource was expected.
8.0.0 context is nullable now.

Examples

Example #1 A finfo_file() example

<?php
$finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
foreach (glob("*") as $filename) {
echo finfo_file($finfo, $filename) . "\n";
}
finfo_close($finfo);
?>

The above example will output something similar to:

text/html
image/gif
application/vnd.ms-excel

See Also