I have a multidimensional array to the tune of $doclist['area']['source'][#]['type']
I would like to get a number of all entries of ['type'] = "title" that are not empty.
Is there a simple way of doing it?
While I am at it, is there a way to get a number of all entries of ['type'] = "title" AND ['area'] = "something" that are not empty?
Assuming by 'area' and 'source' you mean arbitrary strings, you could nest a few loops like so:
$num_titles = 0;
foreach ($doclist as $area => $arr1) {
foreach ($arr1 as $source => $arr2) {
foreach ($arr2 as $k => $arr3) {
if (isset($arr3['title']) && strlen(trim($arr3['title'])))
$num_titles++;
}
}
}
print "Titles: {$num_titles}\n";
print "Areas: " . sizeof($doclist) . "\n";
Here's the function that I wrote based on rfausak's response:
function countdocs($arr,$x="",$y="") {
if (($x) && ($y)) {
return count($arr[$x][$y]);
} else if ($x) {
$r=0;
foreach ($arr[$x] as $arr1) {
$r+=count($arr1);
}
return $r;
} else {
$r=0;
foreach ($arr as $arr1) {
foreach ($arr1 as $arr2) {
$r+=count($arr2);
}
}
return $r;
}
}
I thought that someone may find it useful.
$ships = array(
"Passenger ship" =>
array("Yacht", "Liner", "Ferry"),
"War ship" =>
array("Battle-wagon", "Submarine", "Cruiser"),
"Freight ship" =>
array("Tank vessel", "Dry-cargo ship", "Container
cargo ship")
);
function myCount($var, $i = 0){
$cnt = 0;
foreach ($var as $v) {
if (is_array($v) and $i)
$cnt += myCount($v, 0);
$cnt++;
}
return $cnt;
}
echo myCount($ships, 1);