![]() ![]() ![]() ) Code language: JavaScript ( javascript ) Print_r($properties) Code language: HTML, XML ( xml ) $properties = array_keys($user, 1, true) To enable the strict equality comparison (=) when searching, you pass true as the third argument of the array_keys() function like this: 'admin', This is because the array_keys() uses the equality (=) operator for comparison in searching by default. However, the is_active contains the string '1', not the number 1. The array_keys() function returns one key, which is is_active. ![]() Print_r($properties) Code language: PHP ( php ) The following example uses the array_keys() function to get the keys whose values equal 1: $user = [ Second, get the keys of $user array using the array_keys() function.First, define an associative array $user that contains three keys username, email, and is_active.The following example illustrates how to use the array_keys() function with an associative array: 'admin', 2) Using PHP array_keys() function with an associative array example The array_keys() function returns the key 1 because key 1 contains the value 20. The following example uses the array_keys() function to get the keys of the array whole value is 20: 1 Since the $numbers is an indexed array, the array_keys() function returns the numeric keys of the array. Second, use the array_keys() function to get all the keys of the $numbers array.First, define an array that contains three numbers.The following example shows how to get all keys of an indexed array: 0 1) Using the array_keys() function example Let’s take some examples of using the array_keys() function. The array_keys() function returns an array that contains all the keys in the input array. Otherwise, the function uses the equal opeartor (=) for matching. $strict if it sets to true, the array_keys() function uses the identical operator (=) for matching the search_value with the array keys.$search_value specifies the value of the keys to search for.array_keys ( array $array, mixed $search_value, bool $strict = false ) : array Code language: PHP ( php ) The PHP array_keys() function accepts an array and returns all the keys or a subset of the keys of the array. Introduction to the PHP array_keys function Summary: in this tutorial, you will learn how to use the PHP array_keys() function to get the keys of an array. ![]()
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