File get content via json - php

Question

I have a file text file in which i am saving user id via file_put_contents
i want to display that user id before sending it to view function
here is my code
i try myself bt not geting result....
$name = $this->session->userdata('name');
$id = $this->session->userdata('id');
file_put_contents($filename,json_encode(array('id'=>$id,'name'=>$name)));
$response = array();
$response = json_decode(file_get_contents($filename));
if ($response->name==1){
echo $this->session->userdata('name');
}
echo json_encode($response);
this dont work that i want to display bt if i remove this if condition then i get my result in view file
if ($response->name==1){
echo $this->session->userdata('name');
}
thanks....

Answer 1

$response->name it will be a string, not an int.
Replace:
if ($response->name==1){
echo $this->session->userdata('name');
}
With:
if ($response->name){
echo $this->session->userdata('name');
}
Update:
You stated somewhere in the comments that you want to check for the user id, but in the code you check username. Also inside the if condition, you should use data from $response and not the one from session. That said:
if ($response->id == 1){
echo $response->name;
}
As a side note, are you sure that id and name exists in the session ?

Answer 2

im not clear why do you have
if ($response->name==1){
but any way try this
if you want to prezerve json object stucture you need the second param to be true
json_decode(file_get_contents($filename) ,true);
and you need some json headers that you can find in the botom
header('Cache-Control: no-cache, must-revalidate');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
header('Content-type: application/json');
$name = $this->session->userdata('name');
$id = $this->session->userdata('id');
if(!empty($name)){
if(!is_file($filename)){
touch($filename);
chmod($filename,0777);
}
file_put_contents($filename,json_encode(array('id'=>$id,'name'=>$name),true));
$response = array();
$response = json_decode(file_get_contents($filename) ,true);
if (empty($response->name)){
echo json_encode(array('error'=>'empty response name'),true);
die();
}else{
echo json_encode($response);
}
}else{
json_encode(array('error'=>'no username'),true)
}
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