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PHP Control Structures (Loop)

PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$x;
for ($x = -3; $x < -5; ++$x) {
print ++$x;
}

-3-4
no output
infinite loop
-3-4-5

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

1
1234567891011121314...infinitely
0
01234567891011121314...infinitely

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

error
no output
0
infinite loop

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$a = "1";
$b = "0";
if ((int)$a && $b)
print"hi";
else
print "hello";

hi
hello
no output
error

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$i = 0;
while($i = 10) {
print "hi";
}
print "hello";

infinite loop
hihello
error
hello

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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";
}

hi1
hihi1
hi
hihellohi1

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