Issue with proc_open documentation examples

Hi, Folks,

    Though the command proc_open() is shown as PHP 4.0-4.3 and PHP 5 compatible, the examples given are strictly PHP 5. The documentation should reflect that issue to avoid confusion.

    The key points:

        1. proc_open examples are using five fields with the proc_open function. That only works in PHP 5. PHP 4 can only use the first three.
        2. In the first example, the function stream_get_contents() is used to retrieve the results from the child process. stream_get_contents() only appears in PHP5.

    People who are new to PHP may become frustrated with trying to learn if an example given works only in PHP5 and they are working on a system with only PHP 4.3 (or lower) on it, and they are unaware that there is a difference.

Solution:    Add a line before an example that specifies which version the example is supposed to run in. (ex: "PHP4" or "PHP5" or "PHP4,5", etc....)

    I realize that it creates just yet one more thing to add to the clutter, but I think it will help in the long run.

— Bill Richards

        "I spent a minute looking at my own code by accident.
        I was thinking 'What the hell is this guy doing?'."
                - <Logan>, http://bash.org