This function returns the full URL of the .swf file. Simple enough.

myUrl = getProperty("", _url );

A simple version of the explode() function in PHP. It takes a string and splits it up into an array by splitting it at whatever character (or characters) you specify. For example, reading in a tab delimited text file. Will split it into lines by splitting on returns ("\r"). Then split up the lines by splitting on tabs ("\t").

Attribution: I didn't write this myself, I found it in a comment on one of the Actionscript on-line documentation pages.

function explode(separator:String, string:String) {

        var list = new Array();

        if (separator == null) return false;
        if (string == null) return false;

        var currentStringPosition = 0;
        while (currentStringPosition<string.length) {
                var nextIndex = string.indexOf(separator, currentStringPosition);
                if (nextIndex == -1) break;
                var word = string.slice(currentStringPosition, nextIndex);
                list.push(word);
                currentStringPosition = nextIndex+1;
        }
        if (list.length<1) {
                list.push(string);
        } else {
                list.push(string.slice(currentStringPosition, string.length));
        }
        return list;
}

Here's a cheap little function to mimic the print_r() function from PHP in Actionscript. It's designed to work on most any array and will handle nested arrays through recursion.

//
// recursive function to print out the contents of an array similar to the PHP print_r() funciton
//
function print_a( obj, indent ) {
        if (indent == null) indent = "";
        var out = "";
        for ( item in obj ) {
                if (typeof( obj[item] ) == "object" )
                        out += indent+"[" + item + "] => Object\n";
                else
                        out += indent+"[" + item + "] => " + obj[item]+"\n";
                out += print_a( obj[item], indent+"   " );
        }
        return out;
}
// example call
trace( print_a( example_array ) );

This function will strip out all tabs and return characters. It will also collapse all runs of multiple spaces down to one. It will also remove a leading and trailing spaces. It is similar to the php_strip_whiespace() function in PHP.

function collapseWhiteSpace( theString ) {
        theString =  theString.split("\r").join("");
        theString =  theString.split("\t").join("");
        while ( theString.indexOf("  " ) != -1 ) {
                theString= theString.split("  ").join(" ");
        }
        if (theString.substr(0,1) == " ") {
                theString = theString.substr( 1 );
        }
        if (theString.substr( theString.length-1, 1 ) == " ") {
                theString = theString.substr( 0, theString.length - 1 );
        }
        return( theString );
}

Use the LocalConnection object to get the domain name of the server where the Flash movie is located.

var localDomainLC:LocalConneciton = new LocalConnection();
myDomainName = localDomainLC.domain();
trace( "My domain is " + myDomainName );

This will print out something like this:

My domain is example.com