File: README.md

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README.md

File:	`README.md`
Role:	Documentation
Content type:	`text/markdown`
Description:	Documentation
Class:	PHP Detect File Type Identify files via MIME type and file signatures
Author:	By Martin Latter
Last change:	update README.md
Date:	4 years ago
Size:	`1,482 bytes`

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File Identifier

Identify a file through MIME type and file signature detection.

Purpose

Detect a file's type through MIME type information and file signature (header) bytes.

(File extensions are ignored.)

Uses

*nix systems have the file command, which is a powerful file identifier, and callable from PHP's shell functions.

Nevertheless, this command is not always available.

The main uses of File Identifier are:

For \nix servers where PHP shell functions are disabled inphp.ini* ( `disable_functions=` )
PHP running on Windows, where no `file` command natively exists
When older versions of `file` (e.g. v. 5.09) are installed on the \nix server, and which do not recognise some files such as.gpg*
Where custom, old, or rare file types cannot be identified by the `file` command.

Example Usage

    require('FileIdentifier.php');
    require('FileSignatures.php');

    use Tinram\FileIdentifier\FileIdentifier;

    $f = new FileIdentifier('mira.png');
    $r = $f->getResult();
    echo $r['mimeinfo'] . PHP_EOL . $r['fileinfo'];