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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 |
|---|---|
| 3094 | 'post_parent' => $post_id, |
| 3095 | 'post_mime_type' => $type, |
| 3096 | 'guid' => $upload[ 'url' ] |
| 3097 | ); |
| 3098 | |
| 3099 | // Save the data |
| 3100 | $id = wp_insert_attachment( $attachment, $upload[ 'file' ], $post_id ); |
| 3101 | wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $upload['file'] ) ); |
| 3102 | |
| 3103 | return apply_filters( 'wp_handle_upload', array( 'file' => $name, 'url' => $upload[ 'url' ], 'type' => $type ), 'upload' ); |
| 3104 | } |
| 3105 | |
| 3106 | /* MovableType API functions |
| 3107 | * specs on http://www.movabletype.org/docs/mtmanual_programmatic.html |
| 3108 | */ |
| 3109 | |
| 3110 | /** |
| 3111 | * Retrieve the post titles of recent posts. |
| 3112 | * |