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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 |
|---|---|
| 58 | <h3 class="upload-instructions drop-instructions"><?php _e( 'Drop files anywhere to upload' ); ?></h3> |
| 59 | <a href="#" class="browser button button-hero"><?php _e( 'Select Files' ); ?></a> |
| 60 | </div> |
| 61 | |
| 62 | <div class="upload-inline-status"></div> |
| 63 | |
| 64 | <div class="post-upload-ui"> |
| 65 | <?php |
| 66 | do_action( 'pre-upload-ui' ); |
| 67 | do_action( 'pre-plupload-upload-ui' ); |
| 68 | |
| 69 | if ( 10 === remove_action( 'post-plupload-upload-ui', 'media_upload_flash_bypass' ) ) { |
| 70 | do_action( 'post-plupload-upload-ui' ); |
| 71 | add_action( 'post-plupload-upload-ui', 'media_upload_flash_bypass' ); |
| 72 | } else { |
| 73 | do_action( 'post-plupload-upload-ui' ); |
| 74 | } |
| 75 | |
| 76 | $upload_size_unit = $max_upload_size = wp_max_upload_size(); |