Drupal Devel Module Code Checking out the form
Drupal
05Nov 2009
Checking out the form
To troubleshoot any problems we may encounter while editing the form, we need to inspect it. The devel module provides a kit of 5 functions to inspect the content of variables:
| Function | To inspect content of | Content shown | Using a recursive function |
|---|---|---|---|
| dsm() | Any variable | In a message | Yes, perfect for all. |
| dvm() | A complex variable, such as an object or array | In a message | No. Ugly print. |
| dpr() | A complex variable, such as an object or array | At the top of the page. | Yes. Perfect for complex, ie: nested, objects and arrays. |
| dpm() | A complex variable, such as an object or array | In a message. | Yes. Perfect for complex, ie: nested, objects and arrays. |
| dvr() | Any variable | At the top of a page. | No. Ugly print. |
To inspect complex nested arrays such as forms, you can use either dpr() or dpm()/dsm(). These functions pretty-print forms either at the top of the page, or in the 'message' area. dpm() and dsm() have the same behavior.
Link Source:
http://11heavens.com/theming-the-register-form-in-Drupal-6