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PHP Control Structures (Loop)

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

no output
error
infinite loop
0

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

no output
error
some
all

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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";

true
no output
false
error

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

error
1hello
1hi
1hi1

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

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

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

hi
hihello
hihellohi1
hi1

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