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Add Array function to return only array entries based on matching key

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A simple key based array filter
This commit is contained in:
Clemens Schwaighofer
2024-12-09 19:01:35 +09:00
parent a56cbd8e97
commit 65715ea9c3
3 changed files with 122 additions and 0 deletions
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13
www/admin/class_test.array.php
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@@ -250,6 +250,19 @@ foreach (array_keys($array) as $search) {
}
print "Key not exists: " . DgS::printAr(ArrayHandler::arrayGetNextKey($array, 'z')) . "<br>";
print "<hr>";
$keys = ['b', 'c', 'f'];
print "Return only: " . DgS::printAr($keys) . ": "
. DgS::printAr(ArrayHandler::arrayReturnMatchingKeyOnly($array, $keys)) . "<br>";
$out = array_filter($array, fn($key) => in_array($key, $keys), ARRAY_FILTER_USE_KEY);
print "array filter: " . DgS::printAr($keys) . ": " . DgS::printAr($out) . "<br>";
$out = array_intersect_key(
$array,
array_flip($keys)
);
print "array intersect key: " . DgS::printAr($keys) . ": " . DgS::printAr($out) . "<br>";
print "</body></html>";
// __END__