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Before you start working with UML diagrams, make sure that the UML Support plugin is enabled. The plugin is bundled with PhpStorm and is activated by default. If it is not, enable the plugin as described in Enabling and Disabling Plugins.
You can invoke UML class diagram from different places:
PhpStorm displays UML diagrams in two modes:
Opening a UML class diagram
- Select the desired item.
- Do one of the following:
The diagram is displayed in the editor tab or in the pop-up window:
Tips and tricks
- You can open a UML class diagram without using your pointing device. Consider such a workflow: press Alt+Home, then press Ctrl+Alt+U.