PHP Ds / Deque function contains ()

PHP

Syntax:
public DsDeque::contains ($values): bool
Parameters: This function accepts one or more values, which should check if the values ​​exist in the sequence or not.Return value:this function returns true if the element is present in the Deque , otherwise returns false.The following programs illustrate the Ds / Deque::contains() function in PHP:Program 1:  
// Declare the default size deque $deck = new DsDeque ([1, 2, 3, 4, 5, 6]); echo ( " Elements in the deque " );  
// Show deque elements var_dump ( $deck ); echo ( " Checking for the element in the deque " );  
// Use the contains() function to check 3
// present in the deck or not var_dump ( $deck -> contains (3));  
?>
Exit:
Elements in the deque object (DsDeque) # 1 (6) {[0] = > int (1) [1] = > int (2) [2] = > int (3) [3] = > int (4) [4] = > int (5) [5] = > int (6)} Checking for the element in the deque bool (true)
Program 2:  
// Declare the default size deque $deck = new DsDeque ([1, 2, 3, 4, 5, 6]); echo ( " Elements in the deque " );  
// Show deque elements var_dump ( $deck ); echo ( " Checking for the element in the deque " );  
// Use the contains() function to check 3
// present in the deck or not var_dump ( $deck -> contains ( " GFG " )) ;  
?>
Exit:
Elements in the deque object (DsDeque) # 1 (6) {[0] = > int (1) [1] = > int (2) [2] = > int (3) [3] = > int (4) [4] = > int (5) [5] = > int (6)} Checking for the element in the deque bool (false)
Link: http://php.net/manual/en/ds-deque.contains.php