Function: Get active list filter by filter key.
Function: Sanitize and unslash string or array or post/get value at the same time.
Function: Get the IDs of answer by question ID.
Function: Get total numbers of solved question.
Function: Get current sorting type.
Function: Replace square brackets in a string.
Function: Create base page for AnsPress.
Function: Return question title with solved prefix if answer is accepted.
Function: Verify default ajax nonce field.
Function: Parse search string to array.