在会话中使用反斜杠（\）存储字符串的问题

Question

Here is a quick example:

function step1() {
    $data = array(
        'level_1' => array(
            'level_2' => 'abc\def'
        ),
    );
    $this->session->set_userdata("data", $data);
}
function step2() {
    echo '<pre>';
    print_r($this->session->all_userdata());
}

As end result, data is not stored in session.

Answer 1

You can separate with '\' using '.'...Think this may work

function step1() {
    $data = array(
        'level_1' => array(
            'level_2' => 'abc'.'\'.'def'
        ),
    );
    $this->session->set_userdata($data);
}
function step2() {
    echo '<pre>';
    print_r($this->session->all_userdata());
}