Sergey Biryukov c4fd562663 Widgets: Make sure WP_Widget constructor creates a correct id_base value for a namespaced widget class. ... 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. git-svn-id: https://develop.svn.wordpress.org/trunk@50953 602fd350-edb4-49c9-b593-d223f7449a82		2021-05-23 08:50:44 +00:00
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custom-widget-classes.php	Widgets: Make sure WP_Widget constructor creates a correct id_base value for a namespaced widget class.	2021-05-23 08:50:44 +00:00