Update a Page with PHP Variables / REST API Confluence - php

Question

I want to update a page in confluence with some php-variables. So here's my PHP Code to update the page:
$curl = curl_init();
$post = "{\"id\":\"65604\",\"type\":\"page\",\"title\":\"page\",\"space\":{\"key\":\"***\"},\"body\":{\"storage\":{\"value\":\"<p>Here comes the other variable: $product_response </p>\",\"representation\":\"storage\"}},\"version\":{\"number\":11}}";
curl_setopt_array($curl, array(
CURLOPT_PORT => "6003",
CURLOPT_URL => "http://localhost:6003/rest/api/content/65604",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "PUT",
CURLOPT_POSTFIELDS => $post,
CURLOPT_COOKIE => "JSESSIONID=3A16CBFE8B99E619D62BD4CD6573F184",
CURLOPT_HTTPHEADER => array(
"authorization: Basic xyYS123_test_test-45Sdasds==",
"content-type: application/json"
),
));
For your information:
If i print the $post in another script, the variable value show up
without the variable, the curl session works and I can update the page
Thats the error:
{"statusCode":500,"message":"org.codehaus.jackson.JsonParseException: Illegal unquoted character ((CTRL-CHAR, code 10)): has to be escaped using backslash to be included in string value\n at [Source: com.atlassian.confluence.plugins.restapi.filters.LimitingRequestFilter$1#5dff62ce; line: 1, column: 119]","reason":"Internal Server Error"}

Answer 1

The json values for post that you are forming is incorrectly formed, Why dont you use json_encode(); by declaring all the values inside an array, you can change your code like this:
$curl = curl_init();
$post = array(
"id"=>"65604",
"type"=>"page",
"title"=>"page",
"space"=>["key"=>"***"],
"body" =>["storage"=>["value"=>"<p>Here comes the other variable: ".$product_response." </p>", "representation"=>"storage"]],
"version"=>["number"=>11]
);
curl_setopt_array($curl, array(
CURLOPT_PORT => "6003",
CURLOPT_URL => "http://localhost:6003/rest/api/content/65604",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "PUT",
CURLOPT_POSTFIELDS => json_encode($post),
CURLOPT_COOKIE => "JSESSIONID=3A16CBFE8B99E619D62BD4CD6573F184",
CURLOPT_HTTPHEADER => array(
"authorization: Basic xyYS123_test_test-45Sdasds==",
"content-type: application/json",
'Accept: application/json'
),
));