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array(0, 'def', '_!')

array('_!', 0, 'def')

array('def', 0, '_!)

None of the above

SimpleXML allows removal of attributes.

SimpleXML allows addition of new attributes.

SimpleXML allows removal of nodes.

SimpleXML allows addition of new nodes.

None of the above

guarantee high performance

secure data consistency

secure access to the database

reduce the database server overhead

reduce code size in PHP

""

"/wireless"

"wireless"

"/conf.d/wireless"

"/etc"

htmlentities()

addslashes()

stripslashes()

strip_tags()

htmlspecialchars()

Analysing of nearly any aspect of classes and interfaces

Analysing of nearly any aspect of functions

Adding class methods

Implement dynamic construction (new with variable class name)

Since 5.1 reflection is an extension that can be disabled

Reflection is present in any installation of PHP 5 or later

Reflection only allows to reflect on built-in classes

Built-in classes can be reflected on command line using php –rc

a SELECT statement returned no rows

the transaction has been rolled back

the connection to the database server was disconnected during query execution

the query was too slow to execute

dom_import_simplexml()

dom_export_simplexml()

simplexml_import_dom()

SimpleXML2Dom()

None of the above.

function 4You() { }

function _4You() { }

function object() { }

$1 = "Hello";

$_1 = "Hello World";