/**
 * Hexadecimal digit
 */
protected $version = -1;

try {

}
catch (SQLException ex) {
    // Basically, without saying too much, you're screwed. Royally and totally.
}
catch(Exception ex)
{
    //If you thought you were screwed before, boy have I news for you!!!
}

Fix problem where Nulls don't work properly.  Stupid Microsoft!

代码以迂回的方式一行一行地将null转换为零长度的字符串，因为愚蠢的程序员不理解null是什么，也从未听说过Nz()函数。

// No women, no children... What movie???

// The ratio of a circle's circumference to its diameter.  Remember to change
// this to 3.0 if you move to a site in Indiana.

#define Pi                                      3.1415927

// If this comment is removed the program will blow up