33 lines
1,013 B
PHP
33 lines
1,013 B
PHP
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<?php
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return function($page) {
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function array_flatten($array) {
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if (!is_array($array)) {
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return false;
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}
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$result = array();
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foreach ($array as $key => $value) {
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if (is_array($value)) {
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$result = array_merge($result, array_flatten($value));
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} else {
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$result = array_merge($result, array($key => $value));
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}
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}
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return $result;
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}
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function getSingleCategories($pages) {
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$categoriesRawFields = $pages->pluck('category'); // return ["A, B, C", "A, B"]
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$splittedCategoriesFields = array_map(function($field) {
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return explode(',', $field);
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}, $categoriesRawFields); // return ’[["A", "B", "C",], ["A", "B"]]
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$flattenedCategories = array_flatten($splittedCategoriesFields);
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$filters = array_unique($flattenedCategories);
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return $filters;
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}
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return [
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'categories' => getSingleCategories($page->children())
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];
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};
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