Help explain quiz

Question

pls someone explain working of this code below
func myf($i = 1) {
static $id = 58;
$id - = $i;
echo $id;
}
myf();
myf(1);
myf(-1);

answer = 10099100

Answer 1

SL is failing very much :-(

Answer 2

yes!

Answer 3

hey Michal
declare Static $id = 101 and check it??

Answer 4

https://code.sololearn.com/wyrRDke8PJLF/?ref=app

Answer 5

yes @daniel
I too don't know exactly
weirdest qsn ever in SL

Answer 6

The answer to the above code is 575657 as u said Michal

Answer 7

my output (php7 ubuntu64) is:
575657

note that static variable is initialized only in first call of function:
http://php.net/manual/en/language.variables.scope.php#language.variables.scope.static

Answer 8

Prudhvi our last challenge, in 4 question, could you explain me that correct answer? SL not give us an answer

Answer 9

Something strange but without answer is the "right answer" 8-0

Answer 10

101 outputs 10099100