finfo_open
finfo::__construct
Create a new finfo instance
Description
Procedural style
finfofalse finfo_open(int $flags = FILEINFO_NONE, stringnull $magic_database = null)
public finfo::__construct(int $flags = FILEINFO_NONE, stringnull $magic_database = null)
Parameters
-
flags
-
One or disjunction of more Fileinfo
constants.
-
magic_database
-
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.
Return Values
(Procedural style only)
Returns an finfo instance on success, or false on failure.
Examples
Example #1 Object-oriented style
<?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 Procedural style
<?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);
?>
The above example will output:
text/plain; charset=us-ascii
Notes
Note:
Generally, using the bundled magic database (by leaving
magic_database and the MAGIC
environment variables unset) is the best course of action unless you
specifically need a custom magic database.