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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 |
|---|---|
| 131 | /** |
| 132 | * Filters the tabs shown on the Add Themes screen. |
| 133 | * |
| 134 | * This filter is for backward compatibility only, for the suppression of the upload tab. |
| 135 | * |
| 136 | * @since 2.8.0 |
| 137 | * |
| 138 | * @param array $tabs The tabs shown on the Add Themes screen. Default is 'upload'. |
| 139 | */ |
| 140 | $tabs = apply_filters( 'install_themes_tabs', array( 'upload' => __( 'Upload Theme' ) ) ); |
| 141 | if ( ! empty( $tabs['upload'] ) && current_user_can( 'upload_themes' ) ) { |
| 142 | echo ' <button type="button" class="upload-view-toggle page-title-action hide-if-no-js" aria-expanded="false">' . __( 'Upload Theme' ) . '</button>'; |
| 143 | } |
| 144 | ?> |
| 145 | |
| 146 | <hr class="wp-header-end"> |
| 147 | |
| 148 | <div class="error hide-if-js"> |
| 149 | <p><?php _e( 'The Theme Installer screen requires JavaScript.' ); ?></p> |