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PHP Control Structures (Loop)

PHP Control Structures (Loop)
What will be the output of the following PHP code ?
do {
print "hi";
}
while(0);
print "hello";

infinite loop
error
hihello
hello

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
if (print "0")
print "hi";
else
print "how are u";

0hi
0how are u
how are u
hi

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$a = "1";
switch($a) {
case 1:
break;
print "hi";
case 2:
print "hello";
break;
default:
print "hi1";
}

no output
hihellohi1
hi1
hihi1

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$a = "hello";
if (strlen($a))
print strlen($a);
else
print "hi";

error
5
hi
hellolength

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$a = 1;
if (print $a)
print "True";
else
print "False";

true
no output
error
false

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
for (1; $i == 1; $i = 2)
print "In for loop ";
print "After loopn";

Infinite loop
In for loop
After for loop
In for loopAfter for loop

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