
学习如何驯服React的useCallback钩子
wp_is_numeric_array ( $data )
Determines if the variable is a numeric-indexed array.
function wp_is_numeric_array( $data ) { if ( ! is_array( $data ) ) { return false; } $keys = array_keys( $data ); $string_keys = array_filter( $keys, 'is_string' ); return count( $string_keys ) === 0; }