Pushing value on a global array in php - php

Question

I am facing a problem in pushing value to a global array.
A user uploads multiple documents. Everytime he uploads a document, a webservice is called which returns 'id' and 'type' (which is working fine). I need to store it in a array so that I can encode it into JSON and send it when the user clicks on Submit button.
My code is:
//global variable
<?php
$idarray = array();
$typearray = array();
?>
//form
<form method="post">
<input type="submit" name="upload" value="Upload">
<input type="submit" name="submit" value="Submit">
</form>
<?php
if(isset($_POST['upload']))
{
include 'webservice_call.php';
$url='http://localhost:8080/MyProject/getEntityRequest';
$response=curl_get_call($url); //this function is inside webservicecall.php
$json_string = json_decode($response);
$id=$json_string->gstdtls->entcd; //this is working fine
$ty=$json_string->gstdtls->stcd; //this is working fine
func1($idarray, $typearray, $id, $ty);
}
if(isset($_POST['submit']))
{
$docls=array();
global $idarray;
global $typearray;
for ($i=0; $i < sizeof($idarray); $i++) {
$docls[] = array (
'id' => $idarray[$i],
'ty' => $typearray[$i],
);
}
$json_formatted['docls']=$docls;
echo json_encode($json_formatted);
}
function func1($idarray, $typearray, $a, $b){
array_push($idarray, $a);
array_push($typearray, $b);
}
?>
When the user finally submits, it should give me the content of an array in a encoded format. Which is not happening. I know I am not using the global array in the way it should be used.

Answer 1

what u need is to store values somewhere like database or session instead of an array when you call upload and when you call submit button retrieve those values and convert them to json and echo them .
Here is a example of that using session
<?php
$json_formatted=array();
if (!session_start()) {
session_start();
}
?>
<?php
if(isset($_POST['upload']))
{
$_SESSION["idarray"][]=rand(0,5);
$_SESSION["typearray"][]=rand(0,5);
}
if(isset($_POST['submit']))
{
$docls=array();
$idarray=$_SESSION["idarray"];
$typearray=$_SESSION["typearray"];
for ($i=0; $i < sizeof($idarray); $i++) {
$docls[] = array (
'id' => $idarray[$i],
'ty' => $typearray[$i],
);
}
$json_formatted['docls']=$docls;
echo "<pre>";
print_r(json_encode($json_formatted));
echo "</pre>";
session_destroy();
}
function func1($idarray1, $typearray1, $a, $b){
array_push($idarray, $a);
array_push($typearray, $b);
}
?>
<form method="post">
<input type="submit" name="upload" value="Upload">
<input type="submit" name="submit" value="Submit">
</form>