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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
static $x = 0;
function fun() {
echo $x;
$x++;
}
fun();
fun();
fun();

Nothing
012
123
Error

ANSWER DOWNLOAD EXAMIANS APP

PHP Operators and Expressions
In order to find if a variable holds an actual number or a string containing characters that can be translated into a number you can use:

if_numeric
is_number()
is_num()
is_numeric()

ANSWER DOWNLOAD EXAMIANS APP

PHP Operators and Expressions
What will be the output of the following PHP code ?
var $one = 1;
var $two = 2;
echo $one / $two * $one / $two * $two;

0
Error
1
0.5

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = "test";
$y = "this";
$z = "also";
$x .= $y .= $z ;
echo $x;
echo $y;

testthisthisalso
testthis
error at line 4
testthisalsothisalso

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = '4';
print + + $a;

0
no output
5
error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x =4;
$y = 3;
function fun($x, $y) {
$z = $x + $y / $y + $x;
echo "$z";
}
echo $x;
echo $y;
echo $z;
fun(3, 4);

437
439
349
347

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON PHP Operators and Expressions

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