I'm learning php and I'm trying to get a php file from a http request using Guzzle and then just take a particular array from those contents and ignore the rest. But I'm unsure how to get that array.
<?php
require_once "vendor/autoload.php";
use GuzzleHttp\Client;
$client = new Client();
$response = $client->request('GET', 'http://api-address/file.php');
$body = $response->getBody();
$decoded = json_decode($body, true);
$contents = file_get_contents($decoded);
When I print $contents it looks as expected, for example:
<?php
$var = "example string";
$array = [
[
'name' => 'stuff I need'
]
];
I want to just get the array, iterate through it and write each to a file but I don't know how to get just that and ignore the other stuff that isn't in that array it if that makes sense. Any help would be appreciated.
You are using ...
json_decode($body, true);
That method converts the content to array, that means that probably if you do a ...
var_dump($decoded);
you can see an array that it contents arrays inside ...
Well, I mean, you can get ...
$array = [
[
'name' => 'stuff I need'
]
];
Navigating into $json_decode() array.
If you are asking the how, well, just use the next step ...
$contentArray = $decoded[1] //With this you can get the array that you need.
Related
I send the following data to my php file via ajax:
JSON.stringify({test1: '1', test2: '2'})
I would like to write this data to my JSON FILE content.json containing an empty array
[]
I only want to add the content though if it is not there, yet. This is my PHP code:
$jsonStringObject = file_get_contents("php://input");
$phpObject = json_decode($jsonStringObject);
$newJsonStringObject = json_encode($phpObject);
header('Content-Type: application/json');
$jsonString = file_get_contents('content.json');
$data = (array) json_decode($jsonString, true);
if (in_array($phpObject, $data) === false){
$data[] = $phpObject;
}
$newJsonString = json_encode($data);
file_put_contents('content.json', $newJsonString);
It almost works. Something is wrong with the way the data is added to the array because when I call the function for the first time, it updates content.json to
[null,{"test1":"1","test2":"2"}]
On calling the function again, it adds the object again despite the if-statement:
[null,{"test1":"1","test2":"2"},{"test1":"1","test2":"2"},{"test1":"1","test2":"2"}]
Can anyone help me to spot the mistake?
You're comparing apples and oranges (or rather objects to arrays).
Make sure you decode all json as arrays:
$jsonStringObject = file_get_contents("php://input");
// Added true as second argument to get it bas as an array
$phpObject = json_decode($jsonStringObject, true);
$jsonString = file_get_contents('content.json');
// Removed the (array) since the second argument literally means "return as array"
$data = json_decode($jsonString, true);
if (in_array($phpObject, $data) === false){
$data[] = $phpObject;
}
$newJsonString = json_encode($data);
file_put_contents('content.json', $newJsonString);
Demo: https://3v4l.org/rnCn5
So I'm trying to figure out why I get a NULL value in my .json file after I try to write the array to it. It only happens with the 'array_push' line after creating a new file. If there is a .json file already there with a value in it, it'll write to it correctly. The only thing I could guess was the file is missing the '{' and '}' in it upon creation.
I've got a small work around so far, but not sure that this is the right way to do it. Can someone tell me if this is good or bad?
Just to clarify, the .json document only holds the vault of NULL, there are no array elements or anything in the file besides the word NULL.
//CHECK IF FILE EXISTS, ELSE CREATE IT
$log_filename = "./site_files/logs/error-404-log.json";
if(!file_exists($log_filename)) {
touch($log_filename);
//LINE BELOW IS MY WORK AROUND, I'M NOT SURE IF THIS IS THE RIGHT WAY
file_put_contents($log_filename, json_encode(json_decode("{}")));
echo "$log_filename was created. <br />";
}
$log_array = array();
$new_data = array(
'current_date_stamp' => $current_date_stamp,
'current_page_trail' => $current_page_trail
);
$json_data = file_get_contents($log_filename);
if($log_array != "") { $log_array = json_decode($json_data, true); }
//WHEN CREATING A NEW FILE, ARRAY_PUSH GIVES ERROR
array_push($log_array, $new_data);
$json_data = json_encode($log_array, JSON_PRETTY_PRINT);
file_put_contents($log_filename, $json_data);
$log_filename = "error-404-log.json"; // establish the path/to/filename.json
if (file_exists($log_filename)) { // if path/to/filename.json exists
$json = file_get_contents($log_filename); // access PRETTY json string
echo "pre-existing data: <div><pre>$json</pre></div><br>"; // display json string
$array = json_decode($json, true); // decode to prepare for new data
}
// data always maintains the same structure: an array of 2-element arrays
$array[] = [
'current_date_stamp' => date('Y-m-d H:i:s'),
'current_page_trail' => "foo"
];
// create/update the file
$new_json = json_encode($array, JSON_PRETTY_PRINT); // re-encode updated array data
echo "new data: <div><pre>$new_json</pre></div>"; // display new json string
file_put_contents($log_filename, $new_json); // create or overwrite file
Your code is failing because you are comparing $log_array with an empty string, this condition will always pass because this array will never be an empty string. In the if statement you decode the contents of the file, when the file has no content this will be an empty string and it will return NULL, after this you write this NULL value to your file. If you check if $json_data is an empty string your code should work, I would also recommend doing it like this:
$log_array = array();
$new_data = array(
'current_date_stamp' => $current_date_stamp,
'current_page_trail' => $current_page_trail
);
$json_data = file_get_contents($log_filename);
if($json_data != "") {
$log_array = json_decode($json_data, true);
//WHEN CREATING A NEW FILE, ARRAY_PUSH GIVES ERROR
array_push($log_array, $new_data);
$json_data = json_encode($log_array, JSON_PRETTY_PRINT);
file_put_contents($log_filename, $json_data);
}
This is better since if the string is empty all other actions are irrelevant.
I have a SPA (react) that is uses PHP calls to connect to a MongoDB.
Works great.
However, due to 'rules' I need to serve the javascript files from a different server -- a server that supports neither MongoDB nor MongoDB php client. Let's call this server, SERVER_A.
Let's call the server hosting the MongoDB PHP client and the MongoDB, SERVER_B. ('B' for 'backend'... :) )
The solution, I believe, was to build a php 'middleman' on SERVER_A that simply passes data on to SERVER_B. Research shows me that file_get_contents is the tool for this.
So I take my original known-working PHP file, I put it on SERVER_B and rename it to "mongoPatch_backend.php".
<?php
$user = "xxxx";
$pwd = 'xxx';
$filter = [];
if (isset($_REQUEST['needleKey'])) {
$needleKey = $_REQUEST['needleKey'];
$needle = $_REQUEST['needle'];
$filter = [$needleKey => $needle];
}
$newData = $_REQUEST['newData'];
$filter = ['x' => ['$gt' => 1]];
$options = [
'projection' => ['_id' => 0],
'sort' => ['x' => -1],
];
$bson = MongoDB\BSON\fromJSON($newData);
$value = MongoDB\BSON\toPHP($bson);
$manager = new MongoDB\Driver\Manager("mongodb://${user}:${pwd}#SERVER_B:27017");
$bulk = new MongoDB\Driver\BulkWrite;
$bulk->update(
[$needleKey => $needle],
['$set' => $value],
['multi' => false, 'upsert' => true]
);
$results = $manager->executeBulkWrite('sedwe.users', $bulk);
var_dump($results);
?>
On SERVER_A I then make a new file, dbPatch.php, like so:
<?php
$API = "https://SERVER_B/php/mongoPatch_backend.php?";
if (isset($_REQUEST['needleKey'])) {
$needleKey = $_REQUEST['needleKey'];
$needle = $_REQUEST['needle'];
$filter = [$needleKey => $needle];
}
$newData = $_REQUEST['newData'];
$postData = "needleKey=".urlencode($needleKey);
$postData .= "&needle=".urlencode($needle);
$postData .= "&newData=".urlencode($newData);
// echo $API.$postData;
$data = file_get_contents($API.$postData);
echo $data;
?>
But when I call it, I get nothing echo'd back out of $data.
Any idea why? Remember, the exact same call directly to mongoPatch_backend.php works just fine (but it's a CORS call, so it's not a valid option).
So here is what I've tried:
First, to ensure my AJAX call was still working, I spit out the response to the console. I get nothing.
So I changed the last line of the middleman (dbPatch.php) to echo "Hello World" instead of echo $data and received "Hello World" on the console as expected.
Next, I then changed the last line of my middleman (dbPatch.php) back to echo $data and tried reducing the 'backend' to a simple <?php echo "Hello Back World"; ?> and got nothing on the console.
Next, I go to https://SERVER_B/php/mongoPatch_backend.php in a browser ... and I'm greeted with "Hello Back World" as expected in the browser.
... which leads me to believe something is up with the transferring of info from server to server. Logical call, eh?
Unfortunately, when I try the same thing with just a 'fetch' command, it works perfectly fine:
Here is my 'middleman' (dbFetch.php) script on SERVER_A:
<?php
$API = "https://SERVER_B/php/mongoFetch_backend.php?";
$collection = $_REQUEST['collection'];
$postData = "collection=".urlencode($collection);
$needleID = $_REQUEST['needleID'];
$postData .= "&needleID=".urlencode($needleID);
$data = file_get_contents($API.$postData);
echo $data;
?>
And this is the file on the backend, SERVER_B:
<?php
$user = "xxxx";
$pwd = 'xxxx';
$filter = [];
if (isset($_REQUEST['needleID'])) {
$needleID = $_REQUEST['needleID'];
$filter = ['id'=> $needleID];
}
if (isset($_REQUEST['collection'])) {
$collection = $_REQUEST['collection'];
}
//Manager Class
$connection = new MongoDB\Driver\Manager("mongodb://${user}:${pwd}#SERVER_B:27017");
// Query Class
$query = new MongoDB\Driver\Query($filter);
$rows = $connection->executeQuery("db_name.$collection", $query);
// Convert rows to Array and send result back to client
$rowsArr = $rows->toArray();
echo json_encode($rowsArr);
?>
Huzzah, this works! ... and it's also proof there doesn't appear to be a problem with the server-to-server communication.
So back to ground zero.
I then go with a very simple newData value -- shorter, but same general layout - stringified json. It works! The data ends up in the database.
So I'm forced to think something is wrong with the data in newData (which is only a few hundred lines of stringified JSON made like this: encodeURIComponent(JSON.stringify(newData)). But, this bears repeating: this works if I skip the middleman.
... and that puts me at a loss. PHP isn't something I understand well... can you help?
EDIT to answer comment:
When I call mongoPatch_backend.php directly on SERVER_B it works (as stated above). I had it echo the $newData and it spits out a stringified JSON version of the variable (not URLencoded).
When I call dbPatch.php, it does not give me anything that was passed back from mongoPatch_backend.
As I said in the OP, if I modify mongoPatch_backend.php to do nothing other than echo "hellow world" I am still unable to log it to console when calling it via the above dbPatch.php file.
EDIT: I also tried putting the two PHP files on the same server and am getting the same results. (ie: both the dbPatch.php and mongoPatch.php files are in the same directory on the same server)
EDIT2: I have done a var_dump from the middleman and I get standard-looking human-readable stringified text back.
I do the same var_dump($_REQUEST['newData']); in the backend file and I get nothing back.
I have a sample JSON Array labeled sample.txt that is sent from a sweepstakes form that captures a user's name and e-mail. I'm using WooBox so the JSON Array sends information over by each entry, so there are two entries here: http://pastebin.ca/3409546
On a previous question, I was told to break the ][ so that JSON_ENCODE can figure the separate entries. I would like to capture just the name and e-mail and import the array to my e-mail database (campaign monitor).
My question is: How do I add JSON variable labels to an array? If you see my code, I have tried to use the label $email. Is this the correct form or should it be email[0] with a for loop?
$url = 'http://www.mywebsite.com/sweeps/test.txt';
$content = file_get_contents($url);
$json = json_decode($content,true);
$tmp = explode('][', $json_string);
if (!count($tmp)) {
$json = json_decode($json_string);
var_dump($json);
} else {
foreach ($tmp as $json_part) {
$json = json_decode('['.rtrim(ltrim($json_string, '['), ']').']');
var_dump($json);
}
}
require_once 'csrest_general.php';
require_once 'csrest_subscribers.php';
$auth = array(
'api_key' => 'xxxxxxxxxxxxxxx');
$wrap = new CS_REST_Subscribers('xxxxxxxxxx', $auth);
$result = $wrap->add($json(
'EmailAddress' => $email,
'Name' => $custom_3_first,
'Resubscribe' => false
));
https://github.com/campaignmonitor/createsend-php/blob/master/samples/subscriber/add.php
This should have been fairly easy: if you have a JSON string and you call json_decode($string, true) on it, you get its equivalent in a PHP variable, plain and simple. From there, you can access it like you would any PHP array, object, etc.
The problem is, you don't have a proper JSON string. You have a string that looks like JSON, but isn't valid JSON. Run it through a linter and you'll see what I mean.
PHP doesn't know what to do with your supposed JSON, so you have to resort to manual parsing, which is not a path I would recommend. Still, you were almost there.
require_once 'csrest_general.php';
require_once 'csrest_subscribers.php';
$auth = array('api_key' => 'xxxxxxxxxxxxxxx');
$wrap = new CS_REST_Subscribers('xxxxxxxxxx', $auth);
$url = 'http://www.mywebsite.com/sweeps/test.txt';
$content = file_get_contents($url);
$tmp = explode('][', $content);
foreach ($tmp as $json_part) {
$user = json_decode('['.rtrim(ltrim($json_string, '['), ']').']', true);
$result = $wrap->add(array(
'EmailAddress' => $user->email,
'Name' => $user->fullname,
'Resubscribe' => true
));
}
I'm using the following to pull some data fro facebook:
$tagData = file_get_contents('https://graph.facebook.com/123456789/friends?access_token='.$access_token);
echo $tagData;
This produces e.g.:
{"data":
[
{"name":"Jonathan Montiel","id":"28125695"},
{"name":"Jackson C. Gomes","id":"51300292"}
],
"paging":{"next":"https:\/\/graph.facebook.com\/123456789\/friends?access_token=5148835fe&limit=5000&offset=5000&__after_id=100060104"}}
QUESTION How I can just return ONLY what's inside the [...] including the [ ]?
Desired result:
[
{"name":"Jonathan James","id":"28125695"},
{"name":"Jackson C. Cliveden","id":"51300292"}
]
Try this:
$tagData = json_decode( $tagData, true );
$data = $tagData['data'];
echo json_encode( $data );
This basically converts the JSON to an array, extracts the desired part and returns this again as JSON-encoded.
EDIT
Example Fiddle
json_decode and reencode with json_encode necessary part of the response. Following is going to work for you:
$tagData = file_get_contents('https://graph.facebook.com/123456789/friends?access_token='.$access_token);
$tagData = json_decode($tagData);
echo json_encode($tagData->data);
Thanks to Sirco for the inspiration, this works although how its different to answer given I have no clue!
$tagData = json_decode(file_get_contents('https://graph.facebook.com/123456789/friends?access_token='.$access_token), true );
$data = $tagData['data'];
echo json_encode( $data );