Jim Lucas wrote:
Daevid Vincent wrote:
Anyone have a function that will return an integer of the number of
dimensions an array has?
I did some quick searches and came up with nothing.
The closest was here of someone asking the same thing, but his solution
isn't right:
http://www.bigresource.com/PHP-count-array-dimensions-VrIahx1b.html
http://php.net/manual/en/function.count.php
From a human standpoint, it's easy to see, "oh, this is a TWO
dimensional"...
How about this... Using a slightly modified array that you posted, I came up
with this in about 10 minutes
<pre>I am working with the following data structure
<?php
$in = array(
0 => array(
0 => array('Flight Number', 'flight_number'),
1 => array(
0 => array('Timestamp Departure', 'timestamp_departure'),
1 => array('Timestamp Arrival', 'timestamp_arrival'),
)
),
1 => array('Departure City', 'departure_city'),
2 => array('Arrival City', 'arrival_city'),
);
print_r($in);
echo "\n\n";
$max_depth = 0;
$cur_depth = 0;
function max_array_depth($ar) {
global $cur_depth, $max_depth;
if ( is_array($ar) ) {
$cur_depth++;
if ( $cur_depth > $max_depth ) {
$max_depth = $cur_depth;
}
foreach ( $ar AS $row ) {
max_array_depth($row);
}
$cur_depth--;
}
}
max_array_depth($in);
echo "Max depth of array is: {$max_depth}";
?></pre>
http://www.cmsws.com/examples/php/testscripts/daevid@xxxxxxxxxx/0002.php
Globals are dirty for this kind of recursive utility function. Here's a
cleaner example:
<?php
function get_array_depth( $array )
{
if( !is_array( $array ) )
{
return 0;
}
$maxDepth = 0;
foreach( $array as $value )
{
if( ($subDepth = get_array_depth( $value )) > $maxDepth )
{
$maxDepth = $subDepth;
}
}
return 1 + $maxDepth;
}
?>
Cheers,
Rob.
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http://www.interjinn.com
Application and Templating Framework for PHP
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