PHP Script Cannot Receive Data from axios's Request in Redux Action Function

Question

I want to sent some data to a php script with the use of redux and promise as if the following.

export function fetchFileContent() {
    return {
        type: "FETCH_FILECONTENT",
        payload: axios.post("/api/ide/read-file.php", {
            filePath: document.getArgByIndex(0)[0]
        })
    };
}

But the php script cannot receive the data. When I print all the data in $_POST using var_dump. There is nothing inside.

I checked the Request Payload in the Google Chrome debugging tool and it seems no problem.

In my php script:

if (isset($_POST["filePath"])) 
    echo "yes"; 
else 
    echo "no";
echo "I am the correct file";
var_dump($_POST["filePath"]);

$dir = $_POST['filePath'];
echo $_POST['filePath'];

And I got this response:

noI am the correct file<br />
<b>Notice</b>:  Undefined index: filePath in <b>/var/www/html/api/ide/read-file.php</b> on line <b>7</b><br />
NULL
<br />
<b>Notice</b>:  Undefined index: filePath in <b>/var/www/html/api/ide/read-file.php</b> on line <b>9</b><br />
<br />
<b>Notice</b>:  Undefined index: filePath in <b>/var/www/html/api/ide/read-file.php</b> on line <b>10</b><br />

How can I get back the data in the php script?

Are you definitely checking the right php file? If you're seeing it being sent in your network tab then there isn't any reason it shouldn't be sending. — Rwd, Dec 28 '16 at 19:28
@RossWilson - If I modify the script like adding `if (isset($_POST["filePath"])) echo "yes"; else echo "no";`, I can see `no`. If I add `echo "I am the correct file";`, I can also see it in the response. — Casper, Dec 28 '16 at 19:31
When you do `var_dump($_POST);`, what do you see? It looks like axios is sending a JSON object, so you might need to run json_decode on your $_POST array. — Chris Forrence, Dec 28 '16 at 19:41
@ChrisForrence - When I do `var_dump($_POST)`, I got `array(0) {}`. — Casper, Dec 28 '16 at 19:44
If its JSON you need to get it from php://input like so: `$_POST = json_decode(file_get_contents('php://input'), true);` — Matt Altepeter, Dec 28 '16 at 19:50

score 10 · Accepted Answer · answered Dec 29 '16 at 18:46

Thank to Matt Altepeter and his comment, I finally solved by adding the line:

$_POST = json_decode(file_get_contents('php://input'), true);

So if I do a var_dump($_POST) now, I can get the data filePath.

array(1) {
  ["filePath"]=>
  string(10) "/I am here"
}

PHP Script Cannot Receive Data from axios's Request in Redux Action Function

1 Answers1