2016-01-29 01:45
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What is the best way to store options for a select box in a database? I need to store all options in one single column field. Users will be allow to create there own custom dropdown options for a custom field and I am unsure on how to save all the options to build it dynamically from mysql with php. Any help will be appreciated.

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在数据库中存储选择框的选项的最佳方法是什么? 我需要将所有选项存储在一个单列字段中。 用户将允许为自定义字段创建自己的自定义下拉选项,我不确定如何保存所有选项以使用php从mysql动态构建它。 任何帮助将不胜感激。

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  • douyu7879 2016-01-29 02:25

    You can store the select options in the database as JSON. To do this you would use json_encode on the options array, then store the value in your database.

    // an array of options
    $opts = array('An option', 'Another option', 'A third option');
    // json encode the array for storage in the database
    $dbValue = json_encode($opts);
    // your code to save in the database goes here

    To retrieve the options you would use json_decode to convert it back to an array of options.

    // your code to retrieve the value from the database goes here
    // json decode the array stored in the database
    $out = json_decode($dbValue);
    // output the select
    echo '<select>';
    // loop through the options and output
    foreach ($out as $opt)
        echo '<option>'.$opt.'</option>';
    echo '</select>';
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