finfo_open

finfo::__construct

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

finfo_open -- finfo::__construct — Create a new fileinfo resource

설명

절차식 형식

resource finfo_open ([ int $options = FILEINFO_NONE [, string $magic_file = NULL ]] )

객체 기반 형식 (constructor):

public finfo::__construct ([ int $options = FILEINFO_NONE [, string $magic_file = NULL ]] )

This function opens a magic database and returns its resource.

인수

options

One or disjunction of more Fileinfo constants.

magic_file

Name of a magic database file, usually something like /path/to/magic.mime. If not specified, the MAGIC environment variable is used. If the environment variable isn't set, then PHP's bundled magic database will be used.

Passing NULL or an empty string will be equivalent to the default value.

반환값

(Procedural style only) Returns a magic database resource on success실패 시 FALSE를 반환합니다.

주의

Warning

The expected magic database format changed in PHP 5.3.11 and 5.4.1. Due to this, the internal magic database was upgraded. This mostly effects code where an external magic database is used: reading an older magic file will now fail. Also, some textual representations of the mime types has changed, for instance for PHP would be "PHP script, ASCII text" instead of "PHP script text" returned.

Note:
Generally, using the bundled magic database (by leaving magic_file and the MAGIC environment variables unset) is the best course of action unless you specifically need a custom magic database.

예제

Example #1 객체 기반 형식


<?php
$finfo = new finfo(FILEINFO_MIME, "/usr/share/misc/magic"); // return mime type ala mimetype extension

/* get mime-type for a specific file */
$filename = "/usr/local/something.txt";
echo $finfo->file($filename);

?>

Example #2 절차식 형식


<?php
$finfo = finfo_open(FILEINFO_MIME, "/usr/share/misc/magic"); // return mime type ala mimetype extension

if (!$finfo) {
    echo "Opening fileinfo database failed";
    exit();
}

/* get mime-type for a specific file */
$filename = "/usr/local/something.txt";
echo finfo_file($finfo, $filename);

/* close connection */
finfo_close($finfo);
?>

위 예제의 출력:

text/plain; charset=us-ascii

참고

finfo_close() - Close fileinfo resource