如何使用$ _GET在PHP中使用相同的名称获取多个参数

Question

I'm using checkboxes to search a mysql database I have created. As the checkboxes all use the same name, when I use $_GET, it only gets the last value in the URL.

For example: http://www.website.com/search.php?features=Textures&features=Items&style=Realistic&submit=search

would only return Items, and would override Textures.

Is there a way to store both the values, and then to use these values to search my database?

Answer 1

PHP is a little odd here. Using its standard form data parser, you must end the name of the controls with [] in order to access more than one of them.

<input type="checkbox" name="foo[]" value="bar">
<input type="checkbox" name="foo[]" value="bar">
<input type="checkbox" name="foo[]" value="bar">

Will be available as an array in:

$_GET['foo'][]

If you don't want to rename the fields, then you will need to get access to the raw data ( $_SERVER['REQUEST_URI'] ) and parse it yourself (not something I'd recommend).

Answer 2

I have never tried it with $_GET, but if you use $_POST you can do something like this:

<input type="checkbox" name="car[]" value="honda" /> Honda
<input type="checkbox" name="car[]" value="ford" /> Ford
<input type="checkbox" name="car[]" value="toyota" /> Toyota
// note the [] in the name

so that $car = $_POST['car'] is an array

You can try it with $_GET as well and see.

Answer 3

Name your checkbox elements "features[]" in html. That way they will be passed as an array.

Answer 4

你需要为该变量创建一个HTML数组变量的NAME，这样就可以了

<input name='features[]'/>