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media_buttons( string $editor_id = 'content' )

Adds the media button to the editor

Parameters

$editor_id

(string) (Optional)

Default value: 'content'

Source

File: wp-admin/includes/media.php 

function media_buttons( $editor_id = 'content' ) {
	static $instance = 0;
	$instance++;

	$post = get_post();

	if ( ! $post && ! empty( $GLOBALS['post_ID'] ) ) {
		$post = $GLOBALS['post_ID'];
	}

	wp_enqueue_media( array( 'post' => $post ) );

	$img = '<span class="wp-media-buttons-icon"></span> ';

	$id_attribute = 1 === $instance ? ' id="insert-media-button"' : '';

	printf(
		'<button type="button"%s class="button insert-media add_media" data-editor="%s">%s</button>',
		$id_attribute,
		esc_attr( $editor_id ),
		$img . __( 'Add Media' )
	);

	/**
	 * Filters the legacy (pre-3.5.0) media buttons.
	 *
	 * Use {@see 'media_buttons'} action instead.
	 *
	 * @since 2.5.0
	 * @deprecated 3.5.0 Use {@see 'media_buttons'} action instead.
	 *
	 * @param string $string Media buttons context. Default empty.
	 */
	$legacy_filter = apply_filters_deprecated( 'media_buttons_context', array( '' ), '3.5.0', 'media_buttons' );

	if ( $legacy_filter ) {
		// #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.
		if ( 0 === stripos( trim( $legacy_filter ), '</a>' ) ) {
			$legacy_filter .= '</a>';
		}
		echo $legacy_filter;
	}
}

Uses

Uses Description
wp-includes/class-pop3.php: stripos()
wp-includes/plugin.php: apply_filters_deprecated()

Fires functions attached to a deprecated filter hook.
wp-admin/includes/media.php: media_buttons_context

Filters the legacy (pre-3.5.0) media buttons.
wp-includes/l10n.php: __()

Retrieve the translation of $text.
wp-includes/formatting.php: esc_attr()

Escaping for HTML attributes.
wp-includes/media.php: wp_enqueue_media()

Enqueues all scripts, styles, settings, and templates necessary to use all media JS APIs.
wp-includes/post.php: get_post()

Retrieves post data given a post ID or post object.

Changelog

Version Description
2.5.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/media_buttons