如何使用PHP或JS从Cookie字符串中获取特定值？

Question

A plugin I use stores multiple values in one string.

var_dump looks like this:

{\"strict\":\"0\",\"thirdparty\":\"1\",\"advanced\":\"0\"} 

I need to check if, for example, "advanced" is true or not.

Doing it in php would be great, JS would also be good.

Answer 1

    $jsIn = '{\"strict\":\"0\",\"thirdparty\":\"1\",\"advanced\":\"0\"} ';
    $jsOut = json_decode(stripslashes($jsIn));

Answer 2

<?php
    $input = '{\"strict\":\"0\",\"thirdparty\":\"1\",\"advanced\":\"0\"}';
    $input = str_replace('\', '', $input);
    $input = json_decode($input, true);
    $advanced = empty($input['advanced']);

If your string contains antislashes, you must remove it. Here with PHP#str_replace after that you decode the json string to have an association array and finally test $input['advanced'] with PHP#empty that returns false for false, 0, null, or '0' value otherwise true.

Answer 3

Problem solved and works as intended. So, first we get rid of the backslashes in the string that's the value of this cookie with stripslashes() , in wordpress use wp_unslash() . After json_decode() we have access to (in this case) three items ( strict, thirdparty, advanced ) which can have a value of 0 or 1 . Now, in the var_dump() each item contains string(1) before the actual value.

string(1) "1" 
string(1) "0" 

The IF statement nevertheless works as intended.

$input = json_decode( stripslashes( $_COOKIE['some-cookie'] ), true );
$thirdparty = $input['thirdparty'];
$advanced = $input ['advanced'];

var_dump( $thirdparty );
echo "<br>";
var_dump( $advanced );
echo "<br>";

if ($thirdparty > 0) {
    echo "allowed";
} else {
    echo "not allowed";
}

echo "<br>";

if ($advanced > 0) {
    echo "allowed";
} else {
    echo "not allowed";
}

Many thanks to all ...