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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$var1 = 1 + ++5;
echo $var1;

no output
7
6
error

ANSWER DOWNLOAD EXAMIANS APP

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

9
7
0
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:

is_numeric()
if_numeric
is_number()
is_num()

ANSWER DOWNLOAD EXAMIANS APP

PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 0;
$j = 0;
if ($i && ($j = $i + 10)) {
echo "true";
}
echo $j;

true10
0
true0
10

ANSWER DOWNLOAD EXAMIANS APP

PHP Operators and Expressions
What will be the output of the following PHP code ?
define("NEW_GOOD_NAME_CONSTANT", "I have a value");
define("OLD_BAD_NAME_CONSTANT", NEW_GOOD_NAME_CONSTANT);
echo NEW_GOOD_NAME_CONSTANT;
echo OLD_BAD_NAME_CONSTANT;

ERROR
I have a value
I have a valueNEW_GOO_NAME_CONSTANTS
I have a valueI have a value

ANSWER DOWNLOAD EXAMIANS APP

PHP Operators and Expressions
What will be the output of the following PHP code ?
$color1 = red;
$color2 = green;
echo "$color1"."$color2";

red
red green
error
green

ANSWER DOWNLOAD EXAMIANS APP
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