controlled 'crements

Have you ever wanted to create a function that would increment an integer position by a certain number as long as it didn't go over a max or under a minimum?

Here's a function I wrote recently that does this:

/**
 * Increment or decrement a given position by a change amount within rules
 *
 * @author Richard AT d2p.us
 * @param int $position
 * @param int $change_by
 * @param int $max
 * @param int $min
 * @param string $incOrDec
 */
function incrementDecrement(&$position, $change_by, $max, $min = 1, $incOrDec = "inc"){
  if ($incOrDec == "inc"){
    if (($position + $change_by ) <= $max){
      $position = $position + $change_by;
    }else {
      $position = $max;
    }
  }else {
    if (($position - $change_by ) >= $min){
      $position = $position - $change_by;
    }else{
      $position = $min;
    }
  }
}

Of course, this doesn't return anything, I have it changing the original position because I pass by reference, but change this to suite you.

no libphp4.so after make install

So you've run ./configure with your favorite parameters, done 'make', and then under root done a 'make install' but libphp4.so doesn't get updated (for Apache).

You might be missing this parameter: --with-apxs OR --with-apxs2, depending on your Apache version.

run 'make clean dist' and then start over again, this time with these parameters added on. Then when you run 'sudo make install', you should see a line like this in the output:

cp libs/libphp4.so /usr/libexec/httpd/libphp4.so

Check ./configure --help for more.