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PHP Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to PHP. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - Which of the following is true about php.ini file?
Answer : C
Explanation
Both of the above options are correct.
Q 2 - Which of the following is correct about variable naming rules?
A - Variable names must begin with a letter or underscore character.
B - A variable name can consist of numbers, letters, underscores.
C - you cannot use characters like + , - , % , ( , ) . & , etc in a variable name.
Answer : D
Explanation
All of the above options are correct.
Q 3 - Which of the following is correct about constants?
A - Unlike with variables, you do not need to have a constant with a $.
B - Only scalar data (boolean, integer, float and string) can be contained in constants.
Answer : C
Explanation
Both of the above options are correct.
Q 4 - Which of the following magic constant of PHP returns class name?
Answer : D
Explanation
_CLASS_ − The class name. (Added in PHP 4.3.0) As of PHP 5 this constant returns the class name as it was declared (case-sensitive). In PHP 4 its value is always lowercased.
Q 5 - Which of the following is used to get information sent via get method in PHP?
Answer : A
Explanation
The PHP provides $_GET associative array to access all the sent information using GET method.
Q 6 - Which of the following function is used to read the content of a file?
Answer : B
Explanation
Once a file is opened using fopen() function it can be read with a function called fread(). This function requires two arguments. These must be the file pointer and the length of the file expressed in bytes.
Q 7 - Which of the following function is used to check if a file exists or not?
Answer : D
Explanation
File's existence can be confirmed using file_exist() function which takes file name as an argument.
Q 8 - Which of the following contains a reference to every variable which is currently available within the global scope of the script?
Answer : A
Explanation
$GLOBALS − Contains a reference to every variable which is currently available within the global scope of the script. The keys of this array are the names of the global variables.
Q 9 - Which of the following method of Exception class returns array of the backtrace?
Answer : C
Explanation
getTrace() method of Exception class returns array of the backtrace.
Q 10 - Which of the following method can be used to parse an XML document using PHP?
Answer : C
Explanation
To create a SimpleXML object from an XML document stored in a string, pass the string to simplexml_load_string( ). It returns a SimpleXML object.