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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 2020 | if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) { |
| 2021 | $align = isset( $attachment['align'] ) ? $attachment['align'] : 'none'; |
| 2022 | $size = isset( $attachment['image-size'] ) ? $attachment['image-size'] : 'medium'; |
| 2023 | $alt = isset( $attachment['image_alt'] ) ? $attachment['image_alt'] : ''; |
| 2024 | $caption = isset( $attachment['post_excerpt'] ) ? $attachment['post_excerpt'] : ''; |
| 2025 | $title = ''; // We no longer insert title tags into <img> tags, as they are redundant. |
| 2026 | $html = get_image_send_to_editor( $id, $caption, $title, $align, $url, (bool) $rel, $size, $alt ); |
| 2027 | } |
| 2028 | |
| 2029 | $html = apply_filters( 'media_send_to_editor', $html, $id, $attachment ); |
| 2030 | |
| 2031 | wp_send_json_success( $html ); |
| 2032 | } |
| 2033 | |
| 2034 | /** |
| 2035 | * Generates the HTML to send a non-image embed link to the editor. |
| 2036 | * |
| 2037 | * Backwards compatible with the following filters: |
| 2038 | * - file_send_to_editor_url |