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PHP Operators and Expressions

PHP Operators and Expressions
The result of below two statements will be:Round(2.5)Round(-2.5)

3, -3
3.5, -3.5
2, -2
2.5, -2

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PHP Operators and Expressions
What will be the output of the following PHP code ?
int $one = 1;
echo "$one";

1
Error
$one
0

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$four4 = 4;
$three3 = 3;
$two2 = 2;
echo $four4 + $three3 / $two2 - 1;

4.5
3.5
7
Error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$on_e = 1;
$tw_o = 2;
$thre_e = 3;
$fou_r = 4;
echo $on_e / $tw_o + $thre_e / $fou_r;

Error
0.05
1.25
0.75

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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_num()
is_number()

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PHP Operators and Expressions
What will be the output of the following PHP code ?
echo "This is India";

This is India
This is India
Error
This is

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