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PHP Control Structures (Loop)

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

hello
infinite loop
error
hihello

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

hihellohi1
hihi1
hi1
hi

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
for ($i = 0; $i < 5; $i++) {
for ($j = $i;$j > $i; $i--)
print $i;
}

0 1 0 1 2 0 1 2 3 0 1 2 3 4 0 1 2 3 4 5 0 1 2 3 4 5
infinite loop
no output
0 1 2 3 4 5

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
if (!print "hi")
if (print "hello")
print "hi";

no output
hihellohi
hi
hihi

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
if (0.0)
print "hi";
else
print "how are u";

how are u
hi
no output
error

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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";

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

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