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Which of the following statements about PHP is false? (Choose 2)A . A final class can be derived.B . A final class may be instantiated.C . A class with a final function may be derived.D . Static functions can be final.E . Properties can be final.View AnswerAnswer: A, E

Consider the following table data and PHP code, and assume that the database supports transactions. What is the outcome? Table data (table name "users" with primary key "id"): PHP code (assume the PDO connection is correctly established): $dsn = 'mysql:host=localhost;dbname=exam'; $user= 'username'; $pass='********'; $pdo = new PDO($dsn, $user, $pass); try...

Which of these databases is NOT supported by a PDO driver?A . Microsoft SQL ServerB . SQLiteC . Microsoft AccessD . Berkeley DBView AnswerAnswer: D

What super-global should be used to access information about uploaded files via a POST request?A . $_SERVERB . $_ENVC . $_POSTD . $ FILES E: $_GETView AnswerAnswer: D

What is the output of the following code? class a { public $val; function renderVal (a $a) { if ($a) { echo $a->val; renderVal (null);A . A syntax error in the function declaration lineB . An error, because null is not an instance of 'a'C . Nothing, because a null...

How can you determine whether a PHP script has already sent cookies to the client?A . Use $_COOKIEB . Use the getcookie() functionC . Use the headers_sent() functionD . Use JavaScript to send a second HTTP requestView AnswerAnswer: C

Consider the following code: $result= $valuel ??? $value2; Which operator needs to be used instead of??? so that $result equals $valuel if $valuel evaluates to true, and equals $value2 otherwise? Just state the operator as it would be required in the code.View AnswerAnswer: ?:

Which of the following parts must a XML document have in order to be well-formed?A . An XML declarationB . A root elementC . A specified encodingD . A reference to either a DTD or an XML schema definitionView AnswerAnswer: B

Which of the following techniques ensures that a value submitted in a form can only be yes or no?A . Use a select list that only lets the user choose between yes and no.B . Use a hidden input field that has a value of yes or no.C . Enable...

Which of the following may be used in conjunction with CASE inside a SWITCH statement?A . A scalarB . An expressionC . A booleanD . All of the aboveView AnswerAnswer: D