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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$i = 1;
if ($i++ && ($i == 1))
printf("Yesn$i");
else
printf("Non$i");

No 1
Yes 1
Yes 2
No 2

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

0
5
no output
error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$y = 2;
if (**$y == 4) {
echo $y;
}

4
error at line2
no output
2

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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;

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

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PHP Operators and Expressions
What will be the output of the following PHP code ?
print("this"."was"."a"."bad"."idea");

this was a bad idea
thiswasabadidea
nothing
error

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PHP Operators and Expressions
What will be the output of the following PHP code ?
define('IF', 42);
echo "IF: ", IF;

IF:
No output
IF:42
ERROR

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