wp_mime_type_icon() │ WP 2.1.0
Retrieves the icon for a MIME type or attachment.
Hooks from the function
Return
String|false
. Icon, false otherwise.
Usage
wp_mime_type_icon( $mime, $preferred_ext );
- $mime(string|int)
- MIME type or attachment ID.
- $preferred_ext(string)
- File format to prefer in return.
Default: '.png'
Changelog
Since 2.1.0 | Introduced. |
Since 6.5.0 | Added the $preferred_ext parameter. |
wp_mime_type_icon() wp mime type icon code WP 6.6.2
function wp_mime_type_icon( $mime = 0, $preferred_ext = '.png' ) { if ( ! is_numeric( $mime ) ) { $icon = wp_cache_get( "mime_type_icon_$mime" ); } // Check if preferred file format variable is present and is a validly formatted file extension. if ( ! empty( $preferred_ext ) && is_string( $preferred_ext ) && ! str_starts_with( $preferred_ext, '.' ) ) { $preferred_ext = '.' . strtolower( $preferred_ext ); } $post_id = 0; if ( empty( $icon ) ) { $post_mimes = array(); if ( is_numeric( $mime ) ) { $mime = (int) $mime; $post = get_post( $mime ); if ( $post ) { $post_id = (int) $post->ID; $file = get_attached_file( $post_id ); $ext = preg_replace( '/^.+?\.([^.]+)$/', '$1', $file ); if ( ! empty( $ext ) ) { $post_mimes[] = $ext; $ext_type = wp_ext2type( $ext ); if ( $ext_type ) { $post_mimes[] = $ext_type; } } $mime = $post->post_mime_type; } else { $mime = 0; } } else { $post_mimes[] = $mime; } $icon_files = wp_cache_get( 'icon_files' ); if ( ! is_array( $icon_files ) ) { /** * Filters the icon directory path. * * @since 2.0.0 * * @param string $path Icon directory absolute path. */ $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/media' ); /** * Filters the icon directory URI. * * @since 2.0.0 * * @param string $uri Icon directory URI. */ $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url( 'images/media' ) ); /** * Filters the array of icon directory URIs. * * @since 2.5.0 * * @param string[] $uris Array of icon directory URIs keyed by directory absolute path. */ $dirs = apply_filters( 'icon_dirs', array( $icon_dir => $icon_dir_uri ) ); $icon_files = array(); $all_icons = array(); while ( $dirs ) { $keys = array_keys( $dirs ); $dir = array_shift( $keys ); $uri = array_shift( $dirs ); $dh = opendir( $dir ); if ( $dh ) { while ( false !== $file = readdir( $dh ) ) { $file = wp_basename( $file ); if ( str_starts_with( $file, '.' ) ) { continue; } $ext = strtolower( substr( $file, -4 ) ); if ( ! in_array( $ext, array( '.svg', '.png', '.gif', '.jpg' ), true ) ) { if ( is_dir( "$dir/$file" ) ) { $dirs[ "$dir/$file" ] = "$uri/$file"; } continue; } $all_icons[ "$dir/$file" ] = "$uri/$file"; if ( $ext === $preferred_ext ) { $icon_files[ "$dir/$file" ] = "$uri/$file"; } } closedir( $dh ); } } // If directory only contained icons of a non-preferred format, return those. if ( empty( $icon_files ) ) { $icon_files = $all_icons; } wp_cache_add( 'icon_files', $icon_files, 'default', 600 ); } $types = array(); // Icon wp_basename - extension = MIME wildcard. foreach ( $icon_files as $file => $uri ) { $types[ preg_replace( '/^([^.]*).*$/', '$1', wp_basename( $file ) ) ] =& $icon_files[ $file ]; } if ( ! empty( $mime ) ) { $post_mimes[] = substr( $mime, 0, strpos( $mime, '/' ) ); $post_mimes[] = substr( $mime, strpos( $mime, '/' ) + 1 ); $post_mimes[] = str_replace( '/', '_', $mime ); } $matches = wp_match_mime_types( array_keys( $types ), $post_mimes ); $matches['default'] = array( 'default' ); foreach ( $matches as $match => $wilds ) { foreach ( $wilds as $wild ) { if ( ! isset( $types[ $wild ] ) ) { continue; } $icon = $types[ $wild ]; if ( ! is_numeric( $mime ) ) { wp_cache_add( "mime_type_icon_$mime", $icon ); } break 2; } } } /** * Filters the mime type icon. * * @since 2.1.0 * * @param string $icon Path to the mime type icon. * @param string $mime Mime type. * @param int $post_id Attachment ID. Will equal 0 if the function passed * the mime type. */ return apply_filters( 'wp_mime_type_icon', $icon, $mime, $post_id ); }