At any time, press:
Ctrl + Shift + L
For a list of available shortcut keys defined in your Zend Eclipse PDT.
Window > Preferences > General > Keys
To edit the shortcut keys. Or simply press Ctrl + Shift + L twice.
For Zend Eclipse PDT to instantly show a tool tip hint of what the parameters of a function / method are so you don’t have to look up the original definition, just place the cursor in the parameters parenthesis and press one of them:
Alt + ?
Alt + Shift + /
Ctrl + Shift + Space
Which is defined under the title “Context Information” when you press Ctrl + Shift + L.
If a function or method name is elusive to you, type the beginning part of it and press:
Alt + /
Ctrl + Alt + /
And PDT would try and auto-complete it for you. It is defined under the title “Word Completion” when you press Ctrl + Shift + L.