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Send select's values in array

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旧巷少年郎
旧巷少年郎 2021-01-26 13:10

I have such select list in html:

123
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  • 不思量自难忘°
    2021-01-26 13:41

    As others have mentioned, you should name your inputs according to the typical 'array' naming convention. PHP will automatically turn array syntax in your request variables into an array. Thus, you should name your checkboxes in the form drive_style[name]. To submit this information in JQuery we simply serialize the form: $('form_id').serialize() ought to do the trick. As follows:

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
        <title>Test</title>
        <script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
        <script type="text/javascript" charset="utf-8">

            function jquerySubmit()
            {
                $.post('http://localhost/test.php', $('#checkboxform').serialize(), function(data) {
                    alert(data);
                });
            }

        </script>
    </head>
    <body>
        <form id="checkboxform" action="http://localhost/test.php" method="post">

            <input type="checkbox" name="drive_style[one]" /> One<br />
            <input type="checkbox" name="drive_style[two]" /> Two<br />
            <input type="checkbox" name="drive_style[three]" /> Three<br />

            <input type="submit" value="Submit Form" /> <input type="button" value="Submit AJAX Request" onclick="jquerySubmit()" />
        </form>
    </body>
</html>

    And to read this information on the PHP side is also very simple:

    // http://localhost/test.php
<?php

    echo time(), "\n";

    if (isset($_POST['drive_style']) && is_array($_POST['drive_style']))
    {
        echo implode(", ", array_keys($_POST['drive_style']));
        echo "\n\n";    
    }

    print_r($_POST);

    Notably this naming convention also allows you to submit the form regularly.

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  • 轮回少年
    2021-01-26 13:47 
    <input type="checkbox" name="drive_style[key]" value=2 />123<br />

    You'll get only checked inputs anyways.

    You can get forms serialized data with

    $('form_selector_here').serialize();

    which is the same format used for POST and GET ( and not-checked ones won't be in there )

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  • 太阳男子
    2021-01-26 13:51 
    ​$(function() {
var serial = $('input[name=drive_style]').serialize();
//php -> $('input[name=drive_style[]]').serialize();
  alert( serial );
});​

    this give you:

    drive_style=1&drive_style=3&drive_style=5

    but for work with php you also need to have input name like this:

    <input type="checkbox" name="drive_style[]" value=1 checked />123<br />

    NOTE: drive_style[]

    that obviously giv you:

    drive_style[]=1&drive_style[]=3&drive_style[]=5
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  • 逝去的感伤
    2021-01-26 13:58

    In your case you are using an array of input, you must add [] for all your name's input like this:

    <input type="checkbox" name="drive_style[]" value=1 checked />123<br />
<input type="checkbox" name="drive_style[]" value=2 />123<br />
...

    after that you can retrieve the checked input in your php code.

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