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PHP Control Structures (Loop)

PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$a = 97;
switch(?$a) {
case "a":
print "hi";
break;
case 97:
print "hello";
break;
default:
print "hi1";
}

hello
hihellohi1
hi
hihello

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
for ($i++; $i == 1; $i = 2)
print "In for loop ";
print "After loop";

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

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
$a = 2;
if ($a-- - --$a - $a)
print "hello";
else
print "hi";

hello
no output
error
hi

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

error
no output
hi
hello

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
if (print "hi" - 1)
print "hello"

no output
hihello
error
hi

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PHP Control Structures (Loop)
What will be the output of the following PHP code ?
for ($count = 1; $count != 20;$count++) {
print $count;
$count++;
}

123…….20
Infinite
13579…21
1357…19

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