Data Structure & algorithm (PHP description) triple Triplet

Data Structure & amp; Algorithm (PHP description) triple Triplet

Data Structure & algorithm (PHP description) triple Triplet /** * Triple Triplet */ Class Triplet { Private $ _ data = null; // Initialize the productkey, devicename, and devicesecret Public function init ($ val1, $ val2, $ val3) { $ This-> _ data [0] = $ val1; $ This-> _ data [1] = $ val2; $ This-> _ data [2] = $ val3; Return true; } // Destroy the productkey, devicename, and devicesecret Public function destroy () { Unset ($ this-> _ data ); Return true; } // Returns the value of $ key. Public function get ($ key) { If ($ key <1 | $ key> 3) return false; Return $ this-> _ data [$ key-1]; } // Set the value of $ key to $ val. Public function put ($ key, $ val) { If ($ key <1 | $ key> 3) return false; $ This-> _ data [$ key-1] = $ val; Return true; } // Whether to sort data in ascending order Public function isAscending () { Return ($ this-> _ data [0] <= $ this-> _ data [1]) & ($ this-> _ data [1] <= $ this-> _ data [2]); } // Sort by descending order Public function isDescending () { Return ($ this-> _ data [0] >=$ this-> _ data [1]) & ($ this-> _ data [1] >=$ this-> _ data [2]); } // Obtain the maximum value Public function max () { Return ($ this-> _ data [0] >=$ this-> _ data [1])? ($ This-> _ data [0] >=$ this-> _ data [2])? $ This-> _ data [0]: $ this-> _ data [2]: ($ this-> _ data [1] >=$ this-> _ data [2])? $ This-> _ data [1]: $ this-> _ data [2]; } // Obtain the minimum value Public function min () { Return ($ this-> _ data [0] <= $ this-> _ data [1])? ($ This-> _ data [0] <= $ this-> _ data [2])? $ This-> _ data [0]: $ this-> _ data [2]: ($ this-> _ data [1] <= $ this-> _ data [2])? $ This-> _ data [1]: $ this-> _ data [2]; } } $ ObjTriplet = new Triplet (); Echo "init :"; Var_dump ($ objTriplet-> init (1, 2, 3 )); Echo" "; Echo "get 1 :"; Var_dump ($ objTriplet-> get (1 )); Echo" "; Echo "get 4 :"; Var_dump ($ objTriplet-> get (4 )); Echo" "; // False Echo "put 3, 4 :"; Var_dump ($ objTriplet-> put (3, 4 )); Echo" "; Echo "max :"; Var_dump ($ objTriplet-> max ()); Echo" "; Echo "min :"; Var_dump ($ objTriplet-> min ()); Echo" "; Echo "isAscending :"; Var_dump ($ objTriplet-> isAscending ()); Echo" "; Echo "isDescending :"; Var_dump ($ objTriplet-> isDescending ()); Echo" "; ?>