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PHP Operators and Expressions

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_num()
is_numeric()
if_numeric
is_number()

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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);

0
9
7
Error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 3.3;
$y = 2;
echo $x % $y;

Error
0
2
1

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$var1 = 0;
$var1 = ($var1 + 5)++;
echo $var1;

5
error
6
7

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$y = 2;
if (--$y <> ($y != $y++)) {
echo $y;
}

1
2
no output
0

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PHP Operators and Expressions
What will be the output of the following PHP code ?
echo $x-- != ++$x;

1
0
no output
error

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MORE MCQ ON PHP Operators and Expressions

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