Arrays?

[gruetztian]

hi,
in a project i try to work with multidimensional Arrays like this sample below

$genre = array("Stamps","Coins");

$genre[0] = array("International","National");//Stamps

$genre[0][0] = array("Spain","Italy");//Stamps/International
$genre[0][1] = array("1990","1995");//Stamps/National

$genre[1] = array("International","National");//Coins

$genre[1][0] = array("Spain","Italy");//Coins/International
$genre[1][1] = array("1990","1995");//Coins/National

first question: is this construct possible

second question:how to read Data of first Dimension

The Data in the third dimension in this sample is:

$genre[0][0][0] = "Spain";

but if i try to get the Data of the first or second Dimension:

$genre[0] the output is -> Array

whats the secret of working with arrays???

[pyro]

That is not how multidimensional arrays work. All values that you want to receive out of the array need to be in the last dimension of the array.

[Da Warriah]

something like this would probably be better, tho definitely confusing depending on how many of these you wanted:

$genre = array(
array("Stamps",
array(
array("International",
array("Spain, "Italy")
),
array("National",
array("1990", "1995")
)
),

array("Coins",
array(
array("International",
array("Spain", "Italy")
),
array("National",
array("1990", "1995")
)
)
);

that way, $genre[1][1][0][1][1] is "Italy", under "Coins > International"...($genre[1][0] is "Coins", $genre[1][1][0][0] is "International")....see how confusing it is, even for a "simple" array?

and i dont know why i even bothered to do that, i just needed the practice i guess;)

[AdamBrill]

This is the correct way for the arrays that you posted:


$genre[0] = array(array("Spain","Italy"),array("1990","1995"));//Stamps
$genre[1] = array(array("Spain","Italy"),array("1990","1995"));//Coins Or this way(which is a little easier to look at ;))$genre[0] = array();//Stamps
$genre[0][0] = array("Spain","Italy");
$genre[0][1] = array("1990","1995");
$genre[1] = array();//Coins
$genre[1][0] = array("Spain","Italy");
$genre[1][1] = array("1990","1995");
Either way, this:

echo $genre[0][0][0];

will echo "Spain" onto the page... :)

[AdamBrill]

Or you could do it like this:$genre = array();
$genre["Stamps"] = array();
$genre["Stamps"]["International"] = array("Spain","Italy");//Stamps
$genre["Stamps"]["National"] = array("1990","1995");
$genre["Coins"] = array();
$genre["Coins"]["International"] = array("Spain","Italy");//Stamps
$genre["Coins"]["National"] = array("1990","1995");Then this:echo $genre["Stamps"]["International"][0];will write "Spain" onto the screen... I just figured you might like that one better. ;)