PDO get the last ID had inserted

I have a query and i want to get the last ID had inserted , the filed ID is primary key and auto increment

i know that i have to use this statement

LAST_INSERT_ID()
 

That statement works with me when the query like this

$query = "INSERT INTO `cell-place` (ID) VALUES (LAST_INSERT_ID())";
 

But if i want to get that ID using this statement

$ID = LAST_INSERT_ID();
 

I have got this error

Fatal error: Call to undefined function LAST_INSERT_ID()
 

What am i doing wrong please

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