They're just that... Comments and nothing more. The reason they look so
funny is that the PHP Documentation team has a set of scripts specifically
designed to parse source code files and automatically generate documentation
skeletons from these specially formatted blocks.
I thought that {{{ and }}} were there because they are markers for vim code folding.
Like I said, unimportant comments :) The important thing is that nothing between /* and */ is relevant to the compiler.