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Get array elements like print_r?

How can I iterate over the elements of an array in the same way as the print_r output?

For example, print_r displays the array as:

Array ( [0] => Array ( ) [1] => Array ( [0] => A ) [2] => Array ( [0] => B ) [3] => Array ( [0] => B [1] => A ) [4] => Array ( [0] => C ) [5] => Array ( [0] => C [1] => A ) [6] => Array ( [0] => C [1] => B ) [7] => Array ( [0] => C [1] => B [2] => A ) )

If I use foreach to access each element, there are error messages for each array element for which there are no values:

foreach ($array as $i1 => $n1) {
foreach ($array as $i2 => $n2){

echo $array[$i1][$i2];
}
}

ASKER CERTIFIED SOLUTION

gtagliani

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stevepicks

Have a look at
http://www.learnphp-tutorial.com/Arrays.cfm
at the bottom of the page, there is a two-dimensional array example
Hope it helps
Cheers

Ray Paseur

You can use isset() or empty() to test for the existence and content of variables before you use them in other PHP statements. A good programming practice always!

But having said that, this sequence of code looks confused.

foreach ($array as $i1 => $n1) {
foreach ($array as $i2 => $n2){

echo $array[$i1][$i2];
}
}

I have never seen a design pattern that nested two iterators inside one another - when accessing the same array or object. If you want to post a code snippet that includes a piece of sample data, I can show you the ways to use the foreach() statements. I would be glad to use the example you posted above, but it's too much of a nuisance to copy the print_r output and turn it back into an array, so just give us the starting data and I'll show you how print_r would do it.

best, ~Ray

thor_victor

What are you trying to do exacly?

Compare each data value with something?

Or you are trying just to format as print_r?