200-500 Exam Questions

What function is ideal for outputting contents of a static file to screen?

What SimpleXML function is used to parse a file?

Which of the following will set a 10 seconds read timeout for a stream?

The XML document below has been parsed into $xml via SimpleXML. How can the value of <foo> tag accessed? <?xml version='1.0'?> <document> <bar> <foo>Value</foo> </bar> </document>

What is the method used to execute XPath queries in the SimpleXML extension?

What is the return value of the following code: substr_compare("foobar", "bar", 3);

What is the name of the method that can be used to provide read access to virtual properties in a class?

What is the ideal method of copying data between two opened files?

Which of the following function signatures is correct if you want to have classes automatically loaded?

Which technique should be used to speed up joins without changing their results?

What XML component does the following XPath query try to match? //foo[bar/@id=5]

Where does the session extension store the session data by default?

How can the constant defined below be accessed from within PHP? class myClass { const FOO = 'BAR'; }

What type of class definition can be used to define multiple inheritance?

You have a variable $test that contains sub-strings divided by a dash ("-"). How can you put every sub-string into an array element easily?

Which of the following parts must a XML document have in order to be well-formed?

How can a PHP extension be loaded? (Choose 2)

What is the length of a string returned by: md5(rand(), TRUE);

When comparing prepared statements and regular, application-constructed SQL statements, which of the following is true?

Which of the following statements is true?

What is the result of the following code? define('PI', 3.14); class T { const PI = PI; } class Math { const PI = T::PI; } echo Math::PI;

What is the output of the following code? try { class MyException extends Exception {}; try { throw new MyException; } catch (Exception $e) { echo "1:"; throw $e; }c atch (MyExcept...

Consider the following code: strspn($test, 'aeiou', 1); The variable $test contains the string "You get certified". What will the function call return?

What can prevent PHP from being able to open a file on the hard drive (Choose 3)?

Which of the following statements about database connections are commonly true? (Choose 2)

Under which circumstances is the $_SESSION super-global available? (Choose 2)

What is the output of the following code: str_replace(array("Apple","Orange"), array("Orange","Apple"), "Oranges are orange and Apples are green");

Which sentence describes the following regular expression match? preg_match('/^\d*(?:\.[0-9]+)?$/', $test);

How can XML parsing errors be suppressed in the SimpleXML extension?

The constructs for(), foreach(), and each() can all be used to iterate an object if the object

How can the id attribute of the 2nd baz element from the XML string below be retrieved from the SimpleXML object found inside $xml? <?xml version='1.0'?> <foo> <bar> <baz id="1">On...

When a browser requests an image identified by an img tag, it never sends a Cookie header.

You need to escape special characters to use user input inside a regular expression. Which functions would you use? (Choose 2)

Which of the following code snippets writes the content of the file "source.txt" to "target.txt"? (Choose 3)

Identify the security vulnerability in the following example: 1 <?php 2 mail('[email protected]', 3 'Feddback', 4 'Here is my feedback.', 5 "From: {$_COOKIE['email']}"); 6 ?>

What will be the output of the following code? $a = array(0, 1, 2 => array(3, 4)); $a[3] = array(4, 5); echo count($a, 1);

What is the result of the following code? $a = 1; $b = "1"; var_dump($a === $b);

Which of the following rules must every correct XML document adhere to? (Choose 2)

What function can reverse the order of values in an array without the loss of key information?

In the following code, which class can be instantiated? 1 <?php 2 abstract class Graphics { 3 abstract function draw($im, $col); 4 } 6 abstract class Point1 extends Graphics { 7 pu...

What does an object based on the Active Record pattern provide?

What will the following function call print? printf('%010.6f', 22);

The following code piece should print "PHP is cool", but unexpectedly, it just prints "cool". How would you correct it? echo str_replace('PHP is a pain.', 'a pain', 'cool');

What is the result of the following code: class T { const A = 42 + 1; } echo T::A;

Which of the following code snippets is correct? (Choose 2) (a) interface Drawable { abstract function draw(); } (b) interface Point { function getX(); function getY(); } (c) inter...

Is the following code piece E_STRICT compliant? final class Testing { private $test; public function tester() { return "Tested!"; }}

The purpose of the singleton pattern is to...

What happens if you try to access a property whose name is defined in a parent class as private, and is not declared in the current class?

What is the output of the folowing code? 1 <?php 2 echo '1' . (print '2') + 3; 3 ?>

An object can be counted with count() and sizeof() if it