backend

  • $_SERVER – PHP

    in

    Displaying values ( QUERY_STRING , REQUEST_URI , PHP_SELF , SCRIPT_NAME , REQUEST_SCHEME , SERVER_PROTOCOL , REQUEST_METHOD ) ​​from the server when a request ( REQUEST_METHOD => GET ) is made to the server . Video : Code : <!– $_SERVER –> $_SERVER <br/><br/> <?php print(‘QUERY_STRING => ‘ .$_SERVER[‘QUERY_STRING’] . ‘<br/>’); print(‘REQUEST_URI => ‘ .$_SERVER[‘REQUEST_URI’] .…

  • Null Coalescing Operator – PHP

    in

    Example : <?php // Null Coalescing Operator print(“<p>Case 1 : a is undefined </p>”); $a ?? $a = “Default”; // a = “Default” print(“<p> a = $a </p>”); print(“<p>Case 2 : z = ‘AEZ-Tech’ </p>”); $z = ‘AEZ-Tech’; $z ?? $z = “Default”; // z = ‘AEZ-Tech’ print(“<p> z = $z </p>”); ?> The Output…

  • Short Ternary Operator – PHP

    in

    Example : <?php //// Short-ternary operator print(“<p>Case 1 : </p>”); $a = True; // Declare Variable $a ?: print(“False”) ; print(“<p> a = $a </p>”); print(“<p>Case 2 : </p>”); $z = False; // Declare Variable $z ?: print(“False”) ; print(“<p> z = $z </p>”); ?> The Output : Case 1 : a = 1 Case…

  • Ternary Operator – PHP

    in

    Example : <?php // ternary operator print(“<p>Case 1 : </p>”); $a = False; // Declare Variable $a ? print(“True”) : print(“False”) ; print(“<p> a = $a </p>”); print(“<p>Case 2 : </p>”); $z = True; // Declare Variable $z ? print(“True”) : print(“False”) ; print(“<p> z = $z </p>”); ?> The Output : Case 1 :…