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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = '12345';
echo 'qwe{$a}rty';

error
qwe12345rty
qwe{$a}rty
no output

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

0
Error
1
$one

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$var1 = 3;
print $var = ++$var;

3
2
0
1

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$one = "one";
$two = "one";
print($one == $two);

error
1
true
false

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 3, 4, 5, 6;
echo "$x";

Error
3
6
4

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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;

0.75
Error
0.05
1.25

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