PHP array_shift() not working for me. What am I doing wrong? -


i creating array , want delete first element of array , re-index it. can tell, array_shift() right solution. however, not working in implementation.

i have member variable of class defined array called $waypoint_city. here variable output prior shifting array: 

print_r($this->waypoint_city);

result: 

array ( [0] => [1] => jacksonville [2] => orlando [3] => montgomery [4] => memphis )

if following, correct result: 

print_r(array_shift($this->waypoint_city));

result: 

array ( [0] => jacksonville [1] => orlando [2] => montgomery [3] => memphis )

however, if try reassign result member variable doesn't work... know why is? 

$this->waypoint_city = array_shift($this->waypoint_city);

if try print_r($this->waypoint_city) looks nothing in there. can save hair haven't pulled out, yet.

array_shift[docs] changes array in-place. returns first element (which empty in case):

returns shifted value, or null if array empty or not array.

all have is:

array_shift($this->waypoint_city);

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