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The correct ANSWER is (C) explode()

The explanation is: Although they are a SIMILAR function, you should use explode() instead of split(). In fact split() function has been deprecated ALTOGETHER.

The correct choice is (c) Data-based authentication

Easy EXPLANATION: It not only enhances ADMINISTRATIVE convenience and scalability but ALSO can be integrated into a larger DATABASE INFRASTRUCTURE.

The correct option is (B) Outside

Easy explanation: If it is not STORED outside, the attacker could discover the FILE through brute force GUESSING.

The CORRECT CHOICE is (a) Hard-coding a loginpair directly into the script

To elaborate: The SIMPLEST way to restrict resource access is by hard-coding the username and password directly into the script. In this authentication method, changing the username or password can be done only by entering the code and making the manual adjustment. This is one of the DRAWBACKS of hard-coding a login PAIR directly into the script.

Right answer is (d) isset()

EASY explanation: The isset() function determines WHETHER a variable has been ASSIGNED a value. Its prototype follows: BOOLEAN isset(mixed VAR [,mixed var [,…]]).

Correct answer is (B) 2

The explanation is: The variables PHP USE to authenticate a user are $_SERVER[‘PHP_AUTH_USER’] and $_SERVER[‘PHP_AUTH_PW’].

The CORRECT answer is (C) 7

To explain I WOULD SAY: There are seven validation filters. They are FILTER_VALIDATE_EMAIL, FILTER_VALIDATE_BOOLEAN, FILTER_VALIDATE_FLOAT, FILTER_VALIDATE_INT, FILTER_VALIDATE_IP, FILTER_VALIDATE_REGEXP, FILTER_VALIDATE_URL.

Right option is (b) strip_tags()

For EXPLANATION: The function strip_tags() is used to strip a STRING from HTML, XML, and PHP tags.

The correct choice is (a) GET

To explain I WOULD say: The information sent from a FORM with the method GET is visible to everyone i.e. all variable NAMES and values are DISPLAYED in the URL. So, it should not be used while sending passwords or other sensitive information.

Right choice is (b) only you

Best explanation: The information SENT from a form with the METHOD POST is INVISIBLE to others i.e. all names/values are embedded within the body of the HTTP REQUEST.

The CORRECT OPTION is (c) everyone

The best I can explain: The INFORMATION sent from a form with the method GET is visible to everyone i.e. all variable names and values are DISPLAYED in the URL.

Correct choice is (c) cross-site scripting

Easy explanation: The cross-site scripting attack is among one of the top FIVE security attacks carried out across the Internet. It is also known as XSS, this attack is a TYPE of code INJECTION attack which is made possible by incorrectly VALIDATING user data, which usually gets inserted into the page through a web form or USING an altered hyperlink.

Right answer is (b) $_GET & $_SET

Easiest EXPLANATION: The GLOBAL variables $_GET is used to collect form data after submitting an HTML form with the method=”get”. The variable $_SET is also used to retrieve INFORMATION from forms.

Right ANSWER is (b) getTranitions()

BEST explanation: This outputs a multidimensional array listing PAST and future changes to the offset from UTC for a DateTimeZone OBJECT.

Right choice is (a) $date->MODIFY(‘+2 months’);

The explanation is: To change the date stored by a DATETIME object after it has been created, you USE DateTime::modify() with a natural language EXPRESSION.

The correct answer is (b) date_default_timezone_set(‘Europe/London’);

Explanation: The FUNCTION date_default_timezone_setis used to set the default time ZONE used by all date/time functions in a script. You can also USE ini_set(‘date.timezone’, ‘Europe/London’);

Correct choice is (c) $date = new DateTime();

The explanation is: The way you use the DateTime class is like any other class: instantiate an OBJECT, and STORE it in a VARIABLE.

Correct option is (a) DateTime::FORMAT()

To explain: The format() method is SIMPLY an object-oriented version of DATE(). It takes $dateFormat as an argument. $dateFormat is a string consisting of the same date formatting characters accepted by the PROCEDURAL date() function.

The correct ANSWER is (d) 11

The explanation: The DateTime CLASS has 11 constants, no static properties or METHODS.

The correct answer is (B) 9

Explanation: The DATETIME CLASS has NINE methods, all of which are PUBLIC.

Correct OPTION is (d) $date = NEW DateTime(“22 JUNE 2013”)

To elaborate: The dateTime() method is class constructor. You can set the date EITHER at the time of INSTANTIATION or later by using a variety of mutators.

Correct answer is (C) strtotime(“+45 days”)

Explanation: The strtotime() function and GNU date SYNTAX is USED to calculating the date X days from the present date.

The correct choice is (b) mktime()

Easiest explanation: The function mktime() returns the UNIX timestamp for a DATE. This function is same as gmmktime() except that the passed parameters represents a date not a GMT date.

The correct answer is (a) Complete text representation of MONTH

Best explanation: F represents a full textual representation of a month, such as January or March. Day of month, with leading zero is represented by D, Daylight SAVING TIME by I, Day of month WITHOUT zeros by j.

The CORRECT choice is (c) E

The explanation: When the format is E the time zone is identified and returned, for EXAMPLE, America/New York. N denotes ISO-8601 numeric representation of the day of the WEEK, T denotes time zone abbreviation, I denotes whether or not the date is in DAYLIGHT saving time.

The correct ANSWER is (b) String

To ELABORATE: The function date() is used to format a local date and time, and it will return the formatted date string. The SYNTAX of this function is string date(string format [, INT timestamp]).

The correct option is (a) scandir()

For explanation: It returns an array CONSISTING of files and directories FOUND in DIRECTORY or returns FALSE on ERROR.

The CORRECT choice is (d) system()

Explanation: The function system() in PHP is same as the C version of the function as in that it executes the GIVEN command and outputs the result. This function also tries to automatically FLUSH the web server’s OUTPUT buffer after each line of output if PHP is running as a server module.

Correct choice is (C) touch()

The best EXPLANATION: The function touch() will set the access and MODIFICATION time of the specified FILE. Syntax is touch(FILENAME, time, atime).

The correct ANSWER is (d) fgetss()

The best I can EXPLAIN: The function fgetss() returns a line, with HTML and PHP TAGS removed, from an open file. This function OPERATES similarly to fgets(), except that it also strips any HTML and PHP tags FORM the input.

Correct choice is (a) FGETS()

EASY explanation: The function fgets() will return a line from an open file. This stops returning on a NEW line, at the specified length, or at EOF, whichever comes first.Its prototype is string fgets(resource handle [, int length]). If the optional length PARAMETER is omitted, 1024 character is assumed.

Right option is (b) fwrite()

EXPLANATION: The function fwrite() writes to an OPEN FILE. This will stop at the end of the file or when it reaches the specified length, whichever comes first.

The CORRECT ANSWER is (a) FILE()

Explanation: The function file() will READ the entire file into an ARRAY.

The correct choice is (b) file_get_contents()

To explain I would say: The function file_get_contents() reads a file into a string. This is the PREFERRED way to read the contents of a file into a string as it will use memory MAPPING TECHNIQUES.

The correct answer is (C) fileatime()

For explanation: The fileatime() function returns a file’s last ACCESS time in UNIX timestamp format or FALSE on ERROR.

The CORRECT option is (b) bytes

Explanation: The function filesize() returns the size of the specified FILE and it returns the file size in bytes on SUCCESS or FALSE on FAILURE.