In the following SSCCE, in index.php, a button is printed. When you click this button, a form is submitted (in the click listener of the button in JS) which contains one hidden input field, the value of which is json_encode($anArray).

在下面的SSCCE中,在index.php中,打印一個按鈕。當您單擊此按鈕時,將提交一個表單(在JS中按鈕的單擊偵聽器中),其中包含一個隱藏的輸入字段,其值為json_encode($ anArray)。

The action attribute of the form has a value of test.php, so the form is submitted to test.php.

表單的action屬性值為test.php,因此表單提交給test.php。

In test.php, I print out the contents of $_POST, but I get this weird output:

在test.php中,我打印出$ _POST的內容,但是我得到了這個奇怪的輸出:

Array ( [something] => { )

數組([something] => {)

The question is why, and what do I do to fix it?

問題是為什么,我該怎么做才能解決它?

The second question is that, at the moment test.php opens in new tab, can I force it to rather open in a new window?

第二個問題是,目前test.php在新標簽中打開,我可以強制它在新窗口中打開嗎?

test.php:

if (isset($_POST["something"])) {

print_r( $_POST );

} else {

echo '$_POST["something"] is not set.';

}

?>

script.js:

$(document).ready(function() {

$("#someButton").click(function() {

window.open('', 'TheWindow'); document.getElementById('TheForm').submit(); });

});

index.php:

$dataToPass = array(

"A" => array(

1 => array(

"id" => 1,

"secondId" => 2,

"thirdId" => 3

)

),

"B" => array(

1 => array(

"id" => 4,

"secondId" => 5,

"thirdId" => 6

),

2 => array(

"id" => 7,

"secondId" => 8,

"thirdId" => 9

)

),

"C" => array(

1 => array(

"id" => 10,

"secondId" => 11,

"thirdId" => 12

)

)

);

?>

print_r(json_encode($dataToPass));echo "
";//check

?>

Click me

1 个解决方案

#1

2

Your tag should look like this:

您的標記應如下所示:

Note the use of single-quote characters instead of double-quotes for the value attribute. JSON strings contain double-quote characters; your HTML is reaching the browser looking like this:

請注意,對於value屬性,使用單引號字符而不是雙引號。 JSON字符串包含雙引號字符;你的HTML到達瀏覽器看起來像這樣:

That's why all you get for the value is {.

這就是為什么你得到的價值是{。

Really, to be certain that things will work (the JSON could contain a single-quote too), you should use an HTML encoder to transform any embedded single- or double-quote characters into HTML entities. That way you're guaranteed that the final HTML will not confuse the HTML parser.

實際上,為了確保事情可行(JSON也可以包含單引號),您應該使用HTML編碼器將任何嵌入的單引號或雙引號字符轉換為HTML實體。這樣,您可以保證最終的HTML不會混淆HTML解析器。