How to POST empty <select .. multiple> HTML elements if empty?

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醉酒成梦
醉酒成梦 2021-02-18 18:09

I have the following multi-select box in a HTML form, where user can select one or more option.


Then check:

if (!isset($_POST['eng_0']) && isset($_POST['eng_0_exists']))
    $_POST['eng_0'] = array();

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