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PHP Control Structures (Loop)

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

infinite loop
no output
error
0

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

hihellohi1
hi1
hihi1
hello

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

error
hihello
hello
hi

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$x = 0;
if ($x == 1)
if ($x >= 0)
print "true";
else
print "false";

no output
false
true
error

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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";

hellolength
5
error
hi

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
for(;;) {
print "10";
}

infinite loop
10
error
no output

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