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RALMAZ/Test.txt

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Test.txt
?? php5 long text
+ self is for...
?? how to drop
+ mysql_drop_db()
?? partitioning
+
?? php5 self
+ self is for use...
?? operator is used
+ ===
?? how to rename file
+ rename(oldname, newname)
?? invoking
+ __callStatic()
?? sort by value
+ asort()
?? what are methods
+ These are the function defined
+ These are the functions in which
?? The following functions can be used from Exception class?
+ getMessage
+ getLine
+ getTraceAsString
?? Which is the correct way to profile a PHP function (without relying on 3rd party libraries and/or PHP extensions)
+ microtime(true)
?? You can extend the exception base class, but you can not override any of the preceding methods because they are declared as:
+ final
?? Which of the following is true about the singleton design pattern?
+ A singleton pattern means that a class can have only one instance object
?? Which of the following is useful for method overloading?
+ __call,__get,__set
?? Which of the following methods should be used for sending an email using the variables $to, $subject, and $body?
+ mail($to,$subject,$body)
?? What will be the output of the following code? var_dump (3*4);
+ int(12)
?? Which of the following will start a session?
+ session_start()
?? Which of the following is incorrect with respect to separating PHP code and HTML?
+ As PHP is a scripting language, HTML and PHP cannot be separated.
?? Which of the following will read an object into an array variable?
+ $array_variable = get_object_vars($object);
+ $array_variable = (array)$object;
?? Which of the following is correct about Mysqli and PDO?
+ Mysqli can only be used to access MySQL database while PDO can be used to access any DBMS
?? Which of the following characters are taken care of by htmlspecialchars?
+ All of these
?? Which function can be used to delete a file?
+ unlink()
?? What would occur if a fatal error was thrown in your PHP program?
+ The PHP program will stop executing at the point where the error occurred
?? What is the correct way to send a SMTP (Simple Mail Transfer Protocol) email using PHP?
+ mail($EmailAddress, «Subject», $MessageBody);
?? Which of the following is not a PHP magic constant?
+ __TIME__
?? Which of the following is used to maintain the value of a variable over different pages?
+ session_register()
?? Which of the following is not related to debugging in PHP?
+ watch
?? Should assert() be used to check user input?
+ No
?? Which function will suitably replace ‘X’ if the size of a file needs to be checked?
+ size
?? Which of the following is not a predefined constant?
+ CONSTANT
?? What will be the output of the following code?
<?php
$str=»Hello»;
$test=»lo»;
echo substr_compare($str, $test, -strlen($test), strlen($test)) === 0;
?>
+ 0
?? Which of the following functions is not used in debugging?
+ fprintf()
?? Which of the following cryptographic functions in PHP returns the longest hash value?
+ sha1()
?? Consider the following class:
1 class Insurance
2 {
3 function clsName()
4 {
5 echo get_class($this);
6 }
7 }
8 $cl = new Insurance();
9 $cl->clsName();
10 Insurance::clsName();
Which of the following lines should be commented to print the class name without errors?
+ Line 9 and 10
?? Without introducing a non-class member variable, which of the following can be used to keep an eye on the existing number of objects of a given class?
+ Adding a member variable that gets incremented in the default constructor and decremented in the destructor
?? Which of these is not a valid PHP XML API?
+ b.libXMLError()
?? Which of the following is not a valid API?
+ trigger_print_error()
?? Which of the following is true about posting data using cURL in PHP?
+ Data can be posted using both GET and POST methods
?? Which of the following is the correct way to check if a session has already been started?
+ if ($_SESSION[«session_id»]) echo ‘session started’
?? Which statement will return true?
Note: There may be more than one right answer
+ a. is_numeric («200»)
?? Which of the the following are PHP file upload-related functions?
+ is_uploaded_file()
?? Which of the following statements regarding PHP forms, are correct?
Note: There may be more than one right answer
+ In PHP, the predefined $_POST variable is used to collect values in a form with method=»post».
+ In PHP, the predefined $_GET variable is used to collect values in a form with method=»get».
?? grabage
+ gc_cycles()
__________________________________________________________________
?? Which MIME type needs to be used to send an attachment in mail?
+ multipart/mixed
?? What is the output of the following code?
class Foo {
private $foo;
protected $bar;
public $test;
public function __construct()
{
$this->foo = 1;
$this->bar = 2;
$this ->test = 3;
}
}
print_r( (array) new Foo );
+ Array([Foofoo]=>1 [*bar]=>2[test]=>3)
?? By default, every database connection opened by a script is either explicitly closed by the user during run time of released__________ at the end of the script.
+ Server-side
?? Which magic method is used to implement overloading in PHP ?
+ __call
?? What will be the output of following code ?
<?php $i = 016;echo $i /2; ?>
+ 7
?? Which of the following file modes is used to write into a file at the end of the existing content, and create the file if the file does not exist?
+ a
?? Which of the following statements is incorrect with respect to inheritance in PHP?
+ A Class can extend more than one class.
?? You can extend the exception class, but you cannot override any of the preceding methods they are declared as:
+ final
?? What is the correct syntax of mail() function in php ?
+ mail($to,$subject,$message,$headers)
?? What is the fastest way to insert an item $item into the specified position $position of the array $array ?
+ array_merge() and array_slice()
?? Which of the following MySQL fetch constants imply: if the columns are returned into the array having both a numerical index and the field name as the array index ?
+ Ans. MYSQL_BOTH
?? Which function is used to get the number of arguments passed to the function ?
+ func_num_args()
?? What is the output of the following code ?
<?php
function abc(){
return_FUNCTION_;
}
function xyz(){
return abc();
}
echo xyz();
?>
+ abc
?? Which Function can be used to determine if a file exist? (choose all that apply)
+ is_readable()
+ file_exists()
+ is_file_exists()
?? What will be the output of following code
<?php
class A {
public static function foo() {
static::who();
}
public static function who(){
echo __CLASS__.”\n”;
}
}
class B extends A {
public static function test(){
A::foo();
parent::foo();
self::foo();
}
public static function who() {
echo __CLASS__. “\n”;
}
}
Class C extends B {
public static function who(){
echo __CLASS__.”\n”;
}
}
C::test();
?>
+ ACC
?? Which of the following will print out the PHP call stack ?
+ $e=new Exception;
var_dump($e->getTraceAsString())
?? What is the correct way to send an SMTP(Simple Mail Transfer Protocol) email using PHP?
+ sendmail($EmailAddress,”Subject”,”$MessageBody);
?? The PDO_MYSQL Data Source Name(DSN) is composed of the following elements ?
+ dbname
+ unix_socket
+ charset
?? Which is true about the curl_setopt() API ?
+ It sets one option for cURL transfer
?? What will be the output of the following PHP code ?
<?php
$var=300;
$int options = array(“options”=>array(“min_range”=>0,”max_range”=>256));
if(!filter_var($var,FILTER_VALIDATE_INT, $int_options))
echo(“Integer is not valid”);
else
echo(“Integer is valid”);
?>
+ Integer is not valid
?? Which function is used to read a file removing the HTML and PHP tags in it ?
+ fgetss()
?? What will the output of following code :-
<?php
class BaseClass {
public function test() {
echo “BaseClass::test() called\n”;
}
final public function moreTesting() {
echo “BaseClass::moreTesting() called \n”;
}
}
class ChildClass extends BaseClass {
public function moretesting(){
echo “ChildClass::moreTesting() called\n”;
}
}
$obj = new ChildClass;
$obj->moreTesting();
?>
+ Results in Fatal error : Cannot override final method
BaseClass::moreTesting();
?? What will happen if a fatal error was thrown in your PHP program ?
+ The PHP program will stop executing at the point where the error occured.
?? Which of the following code can be used to send email to multiple recipients ?
+ $recipients = array(‘recipient1@domain.com’,’receipient2@domain.com);
mail($recipients,$subject,$messege,$headers);
?? Which of the following functions belong to Exception class ? (Choose all that apply)
+ getLine()
+ getTraceAsString();
?? Which of the following are valid MySQLi Configuration options ? (Choose all that apply ?
+ mysqli.allow_persistent
+ mysqli.default_port
+ mysqli.default_socket
?? Which is the best approach to parse HTML and extract structured information from it ?
+ Use an XML parser (as simpleXML) and XPath queries if available.
?? What is the output of the following code ?
<?php
function y($v) {
echo $v;
}
$w = “y”;
$w (“z”);
$w = “x”;
?>
+ z
?? Xdebug is a PHP____________, the information which Xdebug provides is about stack and functions with full parameter for user defined functions, memory allocation and support for infinite recursions.
+ Extension
?? See the example class code below
class ExampleClass{
public $val = 5 ;
function &getValNum()
{
return $this->val;
}
}
which of the following one can be used for Return by reference ?
+ $obj = new ExampleClass();
+ $myVal = $obj->getValNum();
?? What is the output of following code ?
function myFun($a) {if(!$a){
throw new Exception(‘Value init.’);
}
return 3/$a;
}
try {
echo myfun(3) .”\n”;
} catch (Exception $e){
echo ‘Caught exception: ‘, $e->getMessage(), “\n”;
} finally {
echo “first\n”;
}
try{
echo myFun(1).”\n”;
} catch (Exception $e) {
echo ‘Caught exeption:’, $e->getMessage(),”\n”;
} finally {
echo “second\n”;
}
echo “Hello PHP Example\n”;
+ 1 first 3 second Hello PHP Example
?? What is true about ini_set(‘memory_limit’,’-1’) ?
+ parse error
?? what is the correct way to read-in multiple values from an array ?
+ list($x,$y,$z) = array(7,8,9);
?? What is the best practice for running MySQL queries in PHP? Consider the risk of SQL injection ?
+ Use PDO prepared statements and parameterized queries
?? Which of the following is the right MIME to use as a Contant Type for JSON data ?
+ application/json
?? Which of the following is the correct way to convert a variable from a string to an integer ?
+ $number_variable = (int)$string_variable;
?? There are a number of mysqlnd plugins already available. These include
+ PECL/mysqlnd_pscache – Prepared Statement Handle Cache plugin
+ PECL/mysqlnd_sip – SQL Injection Protection Plugin
+ PECL /mysqlnd_uh – User Handler Plugin
+ PECL/mysqlnd_qc – Query Cache Plugin
?? What will be the output of executing the following code ?
+ Fata error : Call to private method Foo:: printName() from context
?? When designing classes with UML, a class at its core has the following components ? (choose all that apply)
+ Methods, Attributes
?? Which of the following would show an error in php ?
+ @echo 1
?? What would be the output of the following code ? $str = “0011110000bsts11100”;echo trim($str,’010s’);
+ bst
?? What would be the output of the I and II sample codes:
I)$a = array();
$b = $a;
$b[‘foo’] = 42;
echo $a[‘foo’];
II)
$a = new StdClass();
$b = $a;
$b->foo = 42;
echo $a->foo;
+ Null 42
?? Which of the following is not a Super Global variable in PHP ?
+ None of the above
?? Which of the following would produce an error :
$currentDT = new DateTime();
+ $currentDT->getTimezone(new DateTimeZone(‘UTC’));
?? Which statement is incorrect ?
+ unset() forces the PHP garbage collector to immediately.
?? following file modes is used to srite into a file at the end
+ a
?? which of the following is not related to garbage collection in PHP ?
+ gc_cycles()
?? which statement is not correct ? $x = null;
+ empty($x) return TRUE
?? What would be the output of the following code ?
$parts = parse_url(“https://example.com/test/1234?testing&val&id=1&&=23&row=4”);
parse_str($parts[‘query’],$query);
echo count($query);
+ 4
?? Which of the following is not the correct way to create an empty object in PHP ?
+ $obj = new stdClass();
?? Which function is used to destroy a variable or object ?
+ unset()
?? What will be the output of the following code ?
$arr = array(“THEY”,”WE”,array(“I”,”YOU”),”YOUR”);
echo(count($arr,1));
+ 6
?? Which statement is not correct ?
+ PHP_EOL – The correct ‘End of Line’ symbol for this platform
?? Which method is used to tweak an oject’s cloning behavior ?
+ __clone()
?? How do you access result set meta data ?
++++++++++++++++++++++++++++++
<?php
$mysqli = new mysqli(“example.com”, “user”, “password”, “database”);
if ($mysqli->connect_errno) {
echo “Failed to connect to MySQL: (” . $mysqli->connect_errno . “) ” . $mysqli->connect_error;
}
$res = $mysqli->query(“SELECT 1 AS _one, ‘Hello’ AS _two FROM DUAL”);
var_dump($res->fetch_fields());
?>
++++++++++++++++++++++++++++++
?? Which of the following will decode a JSON variable $json to an object ?
$json = ‘{“abc”:1,”def”:2,”ghi”:3,”jkl”:4,”mno”:5}’;
+ both of above ($object = json_decode($json); and $object = json_decode($json,true);)
?? Choose the correct option to force redirect from http to https :
+ RewriteCond %{HTTPS} off
+ RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}
?? What will be the output of executing the following code ?
<?php
class Foo {
private function printName($name) {
print_r($name);
}
}
$a = new Foo();
$a->printName(‘James’);
?>
+ Fatal error: Call to private method Foo::printName() from context…
?? What will be the output of the below code ?
$tmp = “Dragon%%Ball%%z%”;
$arr = explode(‘%’,trim($tmp));
echo count($arr);
+ 6
?? Which of the following options will fall to remove the element “y” when placed in the blank space in the below sample code
$row = array(0=>”x”,1=>”y”,2=>”z”,3=>”w”)
print_r($row)
+ array_diff($row,[“y”]);
?? Which of the following is the correct option to get a numerically indexed array containing all defined timezone identifiers in PHP
+ DateTimeZone::listIdentifiers(DateTimeZone::UTC);
?? What will be the output of the following code ?
echo(1234==’1234 test’ ? ‘Equal’ : ‘Not equal’);
+ Equal
?? After the following query is executed using PHP, which function can be used to count the number of rows returned ?(choose all that apply)
SELECT * from students
+ mysqli_affected_rows()
+ mysqli_numrows()
?? enums
+ Enum cennot create in PHP
?? POSIX
+ ereg_replace
+ ereg
+ eregi
+ eregi
+ split
+ spliti
+ sql_regcase
?? Where can protected property or method be access?
+ It can only be accessed within the class itself or in descendant classes
?? $var1
+ Not found
?? With regards to the "static" keyword in PHP? which of the following statements is false?
+ The $this variable can be used inside any static method
- Static properties may only be initialized using a literal or a constant
- A property declared as static can not be accessed with an instantiated class object
- A static variable or method can be accessed without requiring instantiation of the class
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