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Widgets: Make sure WP_Widget constructor creates a correct id_base value for a namespaced widget class.

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The `id_base` value is used for the widget's `id` and `class` attributes and also for the option name which stores the widget settings (unless the widget specifies a custom `option_name` value).

With this change, any backslashes in the `id_base` for a namespaced widget class are converted to hyphens, making it easier to style the output or target the widget with JavaScript.

This also avoids a `preg_match(): Compilation failed` PHP warning from `next_widget_id_number()` on the Widgets screen, previously caused by unescaped backslashes.

Props Mte90, hermpheus, rogerlos, welcher, SergeyBiryukov.
Fixes #44098.
Built from https://develop.svn.wordpress.org/trunk@50953


git-svn-id: http://core.svn.wordpress.org/trunk@50562 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2021-05-23 08:51:58 +00:00
parent 1e02e0f049
commit 7670b7dca8
2 changed files with 9 additions and 2 deletions
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9
wp-includes/class-wp-widget.php
View File

@ -160,7 +160,14 @@ class WP_Widget {
* information on accepted arguments. Default empty array.
*/
public function __construct( $id_base, $name, $widget_options = array(), $control_options = array() ) {
$this->id_base = empty( $id_base ) ? preg_replace( '/(wp_)?widget_/', '', strtolower( get_class( $this ) ) ) : strtolower( $id_base );
if ( ! empty( $id_base ) ) {
$id_base = strtolower( $id_base );
} else {
$id_base = preg_replace( '/(wp_)?widget_/', '', strtolower( get_class( $this ) ) );
$id_base = str_replace( '\\', '-', $id_base );
}
$this->id_base = $id_base;
$this->name = $name;
$this->option_name = 'widget_' . $this->id_base;
$this->widget_options = wp_parse_args(

2
wp-includes/version.php
View File

@ -13,7 +13,7 @@
*
* @global string $wp_version
*/
$wp_version = '5.8-alpha-50952';
$wp_version = '5.8-alpha-50953';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.