php key exists
// Here's our fruity array
$fruits = ['apple', 'pear', 'banana'];
// Use it in an `if` statement
if (array_key_exists("banana", $fruits)) {
// Do stuff because `banana` exists
}
// Store it for later use
$exists = array_key_exists("peach", $fruits);php array all keys empty
array('key1' => null, 'key2' => null, 'key3' => null, 'key4' => null)
if (!array_filter($array)) {
// all values are empty (where "empty" means == false)
}Copyright © 2021 Codeinu
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