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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; 0; $i++) {
print"i";
}

error
infinite loop
no output
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";
}

hi1
hello
hihellohi1
hihi1

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

hello
error
hihello
infinite loop

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

infinite loop
hi
error
no output

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
for ($x =1; $x < 10;++$x) {
print "*t";
}

infinite loop
**********
***********
*********

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

error
false
no output
true

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