5 Editing

M-q

Fill the paragraph to current value of fill-column. The command does the right thing for indented code and PHP comments including Docblock comments.

C-u n C-x f

Set the fill-column to n when using the M-q command (fill-paragraph).

C-M-h

Mark the current function (c-mark-function). Puts the mark at the end and of the function and the point at the beginning. Useful if you want to kill the region with C-w or M-w, or indent the region with C-M-\ or C-x TAB (See Indentation.).