mysqli - Having trouble updating database using php -

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i have database called specials table called specials, table has 6 rows, there 3 records record id of 1,2, , 3. 1 of rows called title. have data there want update data using form. how ever mysqli_query not working.

here code.

mysqli_query($connect, "update specials set title=san diego id='1'");

assuming title varchar , id int

mysqli_query($connect, "update specials set title='san diego' id=1");

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