how to insert array in mysql code example

Example 1: Insert mysql

#Some columns or all 
INSERT INTO table_name (column1, column2, column3, ...)
VALUES (value1, value2, value3, ...);
#All columns
INSERT INTO table_name
VALUES (value1, value2, value3, ...);

Example 2: insert array into mysql column

//Do db insert

$arr = array('val1','val2');
$string = implode(',',$arr);


//Do db retrieve

$arr = explode(',',$string);