将多维数组转换为单个数组
/* This is how my array is currently */Array([0] => Array ( [0] => Array ( [plan] => basic ) [1] => Array ( [plan] => small ) [2] => Array ( [plan] => novice ) [3] => Array ( [plan] => professional ) [4] => Array ( [plan] => master ) [5] => Array ( [plan] => promo ) [6] => Array ( [plan] => newplan ) ) )
/*Now, I want to simply it down to this*/Array ([0] => basic[1] => small[2] => novice[3] => professional[4] => master[5] => promo[6] => newplan)
四季花海
三国纷争
小怪兽爱吃肉