Code Modernization: Use `file_get_contents()` in `wp_get_image_mime()`.

`file_get_contents()` is faster than `fread()`, because the PHP core can decide how to best read the remaining file; it could decide to issue just one `read()` call or `mmap()` the file first.

Per the PHP manual, `file_get_contents()` or `stream_get_contents()` is the preferred way to read the contents of a file into a string. It will use memory mapping techniques if supported by the OS to enhance performance.

Reference: [https://www.php.net/manual/en/function.file-get-contents.php PHP Manual: file_get_contents()].

Follow-up to [50810], [52696], [52698].

Props maxkellermann.
See #55069.
Built from https://develop.svn.wordpress.org/trunk@52701


git-svn-id: http://core.svn.wordpress.org/trunk@52290 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2022-02-11 15:50:05 +00:00
parent a3f3c5c959
commit 734960733e
2 changed files with 2 additions and 8 deletions

View File

@ -3265,12 +3265,8 @@ function wp_get_image_mime( $file ) {
return $mime;
}
$handle = fopen( $file, 'rb' );
if ( false === $handle ) {
return false;
}
$magic = file_get_contents( $file, false, null, 0, 12 );
$magic = fread( $handle, 12 );
if ( false === $magic ) {
return false;
}
@ -3289,8 +3285,6 @@ function wp_get_image_mime( $file ) {
) {
$mime = 'image/webp';
}
fclose( $handle );
} catch ( Exception $e ) {
$mime = false;
}

View File

@ -16,7 +16,7 @@
*
* @global string $wp_version
*/
$wp_version = '6.0-alpha-52700';
$wp_version = '6.0-alpha-52701';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.