使用PHP explode从$ _GET创建一个单词数组

Question

I'm having trouble using explode() in php. I want to make an array of strings from the $_GET super global array.

The url will be like:

example/myproject.php?keywords=this+is+an+example

I want an array of the keywords so it should be like this:

myArray(6) = { [0]=> string(4) "this"
               [1]=> string(2) "is"
               [2]=> string(2) "an"
               [3]=> string(7) "example" }

Here's my code:

$stringVals = explode("+",($_GET['keywords']));
var_dump($stringVals);

Here's the output:

array(1) { [0]=> string(30) "this is an example of a string" }

An example that works:

$pizza  = "piece1 piece2 piece3 piece4 piece5 piece6";
$pieces = explode(" ", $pizza);
var_dump($pieces);

The output of this:

array(6) { [0]=> string(6) "piece1" [1]=> string(6) "piece2" [2]=>
string(6) "piece3" [3]=> string(6) "piece4" [4]=> string(6) "piece5"
[5]=> string(6) "piece6" } 

I want the words from $_GET like that..

Answer 1

Actually you can simply use:

explode(" ", $_GET['string'])

The + sign in the url actually means a space, not plus :- ) It's because spaces aren't allowed in the urls (url cannot have whitespaces), so it's actually converted to a plus sign.