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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 = -1;$i = 1) {
print $i;
if ($i != 1)
break;
}

0
-1
1
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";

error
hi
no output
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
error
hi
hihello

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

5
hellolength
error
hi

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

1
infinite loop
0
01

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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";

all
some
no output
error

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