Suppose I have an array like this:
$array = [
0 => [
"label" => "Radiator",
"details" => 0 => [
"label" => "Condition",
"value" => "New",
],
1 => [
"label" => "Type",
"value" => "Wall",
],
],
1 => [
"label" => "Airco",
"details" => 0 => [
"label" => "Condition",
"value" => "New",
],
1 => [
"label" => "Type",
"value" => "",
],
],
2 => [
"label" => "Refrigerator",
"details" => 0 => [
"label" => "Condition",
"value" => "Bad",
],
1 => [
"label" => "Type",
"value" => "Wall",
],
],
];
I want to filter this array so it only contains details where the value is not empty. Airco's type value is empty, so it should not return detailed type. In this case, the returned array should look like this:
$array = [
0 => [
"label" => "Radiator",
"details" => 0 => [
"label" => "Condition",
"value" => "New",
],
1 => [
"label" => "Type",
"value" => "Wall",
],
],
1 => [
"label" => "Airco",
"details" => 0 => [
"label" => "Condition",
"value" => "New",
],
],
2 => [
"label" => "Refrigerator",
"details" => 0 => [
"label" => "Condition",
"value" => "Bad",
],
1 => [
"label" => "Type",
"value" => "Wall",
],
],
];
I know I can filter an array based on empty columns using the following code (as found here):
$result = array_filter($array, function($o) use($column) {
return trim( $o[$column] ) !== '' && $o[$column] !== null;
});
But since I have a nested arraydetails, I'm not quite sure how to adjust this code to make it work for my case.
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Your
array_filteronly works on the first level. You also want to loop over thedetailsarray, you can do this using a simple foreach loop. The outer loop will iterate through all the rows, and the inner loop will iterate over thedetailsof each row.$record){ if(strlen($record['value']) == 0){ unset($row['details'][$key]); } } }Live Demo