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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 aka 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