250 Câu hỏi trắc nghiệm lập trình PHP có đáp án

<?php
$total = "25 students";
$more = 10;
$total = $total + $more;
echo "$total";
?>

A. Error

B. 35 students

C. 35

D. 25 students

A. $add = $add

B. $add = $add +$add

C. $add = $add + 1

D. $add = $add + $add + 1

A. echo “\$x”;

B. echo “$$x”;

C. ) echo “/$x”;

D. echo “$x;”;

<?php
$a = "clue";
$a .= "get";
echo "$a";
?>

A. get

B. true

C. false

D. clueget

<?php
$a = 5;
$b = 5;
echo ($a === $b);
?>

A. 5 === 5

B. Error

C. 1

D. False

A. \r

B. \n

C. /n

D. /r

<?php
$num = 10;
echo 'What is her age? \n She is $num years old';
?>

A. What is her age? \n She is $num years old

B. What is her age? She is $num years old

C. What is her age? She is 10 years old

D. What is her age?

<?php
$team = "arsenal";
switch ($team)
{
    case "manu":
        echo "I love man u";
    case "arsenal":
        echo "I love arsenal";
    case "manc":
        echo "I love manc";
}
?>

A. I love arsenal

B. Error

C. I love arsenalI love manc

D. I love arsenalI love mancI love manu

A. 12

B. 1

C. Error

D. 5

<?php
function calc($price, $tax = "")
{
    $total = $price + ($price * $tax);
    echo "$total";
}
calc(42);
?>

A. Error

B. 0

C. 42

D. 84

<?php
$op2 = "blabla";
function foo($op1)
{
    echo $op1;
    echo $op2;
}
foo("hello");
?>

A. helloblabla

B. Error

C. hello

D. helloblablablabla

A. Magic Function

B. Inbuilt Function

C. Default Function

D. User Defined Function

<?php
function foo($msg)
{
    echo "$msg";
}
$var1 = "foo";
$var1("will this work");
?>

A. Error.

B. $msg

C. 0

D. will this work

A. Úc

B. Ấn Độ

C. Greenland

D. Anh

A. zip_compress()

B. zip()

C. compress()

D. gzcompress()

<?php
echo chr(52);
?>

A. 1

B. 2

C. 3

D. 4

<?php
echo ord("hi");
?>

A. 106

B. 103

C. 104

D. 209

<?php
echo ucwords("i love my country");
?>

A. I love my country

B. i love my Country

C. I love my Country

D. I Love My Country

<?php
echo lcfirst("welcome to India");
?>

A. welcome to India

B. welcome to india

C. Welcome to India

D. Welcome to india

A. 1

B. 2

C. 0

D. -1

A. this_array()

B. is_array()

C. do_array()

D. in_array()

A. array_unshift()

B. into_array()

C. inend_array()

D. array_push()

<?php
$fruits = array(
    "apple",
    "orange",
    "banana"
);
echo (next($fruits));
echo (next($fruits));
?>

A. orangebanana

B. appleorange

C. orangeorange

D. appleapple

A. last()

B. before()

C. prev()

D. previous()

A. sort()

B. asort()

C. rsort()

D. dsort()

<?php
$fruits = array(
    "apple",
    "mango",
    "peach",
    "pear",
    "orange"
);
$subset = array_slice($fruits, 2);
print_r($subset);
?>

A. Array ( [0] => peach )

B. Array ( [0] => apple [1] => mango [2] => peach )

C. Array ( [0] => apple [1] => mango )

D. Array ( [0] => peach [1] => pear [2] => orange )

<?php
$number = array(
    "4",
    "hello",
    2
);
echo (array_sum($number));
?>

A. 4hello2

B. 4

C. 2

D. 6

<?php
$a = array(
    12,
    5,
    2
);
echo (array_product($a));
?>

A. 024

B. 120

C. 010

D. 060

<?php
$people = array(
    "Peter",
    "Susan",
    "Edmund",
    "Lucy"
);
echo pos($people);
?>

A. Lucy

B. Peter

C. Susan

D. Edmund

<?php
define("GREETING", "Hello you! How are you today?");
echo constant("GREETING");
?>

A. Hello you! How are you today?

B. GREETING

C. GREETING, Hello you! How are you today?

D. “GREETING”,”Hello you! How are you today?”

<?php
echo stripos("I love php, I love php too!", "PHP");
?>

A. 3

B. 7

C. 8

D. 10

<?php
function mine($m)
{
    if ($m < 0) echo "less than 0";
    if ($m >= 0) echo "Not True";
}
mine(0);
?>

A. less than 0

B. Not True

C. Không ra kết quả

D. Tất cả đều sai

<?php
function 2myfunc()
{
    echo "Hello World";
}
2myfunc();
?>

A. Hello World

B. Không có kết quả

C. Có lỗi xảy ra

D. Tất cả đều sai

<?php
function _func()
{
    echo "Hello World";
}
_func();
?>

A. Hello World

B. Không có kết quả

C. Có lỗi xảy ra

D. Tất cả đều sai

<?php
function mine($num)
{
    $num = 2 + $num;
    echo $num;
}
mine(3);
?>

A. 3

B. $num

C. 5

D. Tất cả đều sai

<?php
function one($string)
{
    echo "I am " . $String;
}
one("Batman");
?>

A. I am Batman

B. I am

C. Batman

D. Có lỗi xảy ra

<?php
function colour()
{
    $colors = array(
        "red",
        "green",
        "blue",
        "yellow"
    );
    foreach ($colors as $value)
    {
        echo "$value " . ",";
    }
}
colour();
?>

A. red,green,blue,yellow,

B. green,blue,yellow,red

C. red,blue,yellow,green

D. red,green,yellow,blue

<?php
function
case ()
{
    echo "Hello World! ";
    echo "Hello World! ";
    echo "Hello World! ";
}
case ();
?>

A. Hello World!

B. Hello World! Hello World!

C. Hello World! Hello World! Hello World!

D. Tất cả đều sai

<?php
function email()
{
    $email = ’user@yahoo . com’;
    $new = strstr($email, ‘@');
	echo $new;
}
email();
?>

A. user

B. user@yahoo.com

C. @yahoo.com

D. yahoo.com

<?php
$x = 0;
if ($x) print "hi";
else print "how are u";
?>

A. how are u

B. hi

C. Error

D. No output

<?php
$x = 0;
if ($x == 0) print "hi";
else print "how are u";
print "hello"
?>

A. how are uhello

B. hihello

C. hi

D. No output

<?php
$x = 0;
if ($x == 1) if ($x >= 0) print "true";
else print "false";
?>

A. true

B. false

C. error

D. Không có kết quả in ra

<?php
$a = 1;
if (echo $a) print "True";
else print "False";
?>

A. true

B. false

C. Xảy ra lỗi

D. Không có kết quả trả về

<?php
$a = 1;
if (print $a) print "True";
else print "False";
?>

A. 1True

B. False

C. Có lỗi xảy ra

D. Màn hình trắng

A. Polymorphism

B. Inheritance

C. Encapsulation

D. Abstraction

A. Abstraction

B. Polymorphism

C. Inheritance

D. Differential

A. Polymorphism

B. Inheritance

C. Encapsulation

D. Abstraction

A. friendly

B. final

C. public

D. static

A.  $obj = new $foo;

B. $obj = new foo;

C. $obj = new foo ();

D. obj = new foo ();

A. constant PI = “3.1415”;

B. const $PI = “3.1415”;

C. constant PI = ‘3.1415’;

D. const PI = ‘3.1415’;