php二维数组，根据某一字段值，取出新的数组,有这样的函数吗？

Question

$a = [ ['name' => 'fk', 'age' => 30], ['name' => 'yy', 'age' => 28], ['name' => 'zz', 'age' => 30], ['name' => 'ee', 'age' => 29], ]; 取出age=30 的数组 $a = [ ['name' => 'fk', 'age' => 30], ['name' => 'zz', 'age' => 30], ]; 有这样的函数吗？

Answer 1

array_filter