slim php $stmt->get_result() to $stmt->bind_result() - php

Question

my question is how to translate get_result() to bind_result()
here is my index.php
//
$app->get('/tasks', 'authenticate', function() {
global $user_id;
$response = array();
$db = new DbHandler();
// fetching all user tasks
$result = $db->getAllUserTasks($user_id);
$response["error"] = false;
$response["tasks"] = array();
// looping through result and preparing tasks array
while ($task = $result->fetch_assoc()) {
$tmp = array();
$tmp["id"] = $task["id"];
$tmp["task"] = $task["task"];
$tmp["status"] = $task["status"];
$tmp["createdAt"] = $task["created_at"];
array_push($response["tasks"], $tmp);
}
echoRespnse(200, $response);
});
//
here is the dbhandler.php
public function getAllUserTasks($user_id) {
$stmt = $this->conn->prepare("SELECT t.* FROM tasks t, user_tasks ut WHERE t.id = ut.task_id AND ut.user_id = ?");
$stmt->bind_param("i", $user_id);
$stmt->execute();
$tasks = $stmt->get_result();
$stmt->close();
return $tasks;
}
i am having all sorts of trouble trying to convert it to use bind_result() instead of get_result(), can some please give me some advice
thank you advance
Jason
here is my approach trying to convert it without luck please point out the problem thanks
index.php
///
$app->get('/companies', 'authenticate', function() {
global $user_id;
$response = array();
$db = new DbHandler();
// fetching all user tasks
$result = $db->getAllUserCompanies($user_id);
$response["error"] = false;
$response["companies"] = array();
$companies = array();
while ($companies = $result->fetch()) {
$tmp = array();
$tmp["CompanyID"] = $companies["CompanyID"];
$tmp["UserID"] = $companies["UserID"];
$tmp["CompanyName"] = $companies["CompanyName"];
$tmp["CompanyAddress"] = $companies["CompanyAddress"];
$tmp["CompanyCity"] = $companies["CompanyCity"];
$tmp["CompanyIndustry"] = $companies["CompanyIndustry"];
$tmp["CompanyContact"] = $companies["CompanyContact"];
$tmp["CompanyNotes"] = $companies["CompanyNotes"];
$tmp["CreatedDate"] = $companies["CreatedDate"];
$tmp["UpdatedTime"] = $companies["UpdatedTime"];
$tmp["UpdatedBy"] = $companies["UpdatedBy"];
array_push($response["companies"], $tmp);
echoRespnse(200, $response);
}
});
dbhealper.php
//
public function getAllUserCompanies($user_id) {
$stmt = $this->conn->prepare("SELECT CompanyID, UserID, CompanyName, CompanyAddress, CompanyCity, CompanyIndustry, CompanyContact, CompanyNotes, CreatedDate, UpdatedTime, UpdatedBy FROM company WHERE UserID = ?");
$stmt->bind_param("i", $user_id);
//if ($stmt->execute()) {
($stmt->execute());
$companies = array();
$companies = $stmt->bind_result($CompanyID, $UserID, $CompanyName, $CompanyAddress, $CompanyCity, $CompanyIndustry, $CompanyContact, $CompanyNotes, $CreatedDate, $UpdatedTime, $UpdatedBy);
$stmt->close();
return $companies;
}

Answer 1

dbhealper.php //
You can try this
public function getAllUserCompanies($user_id) {
$stmt = $this->conn->prepare("SELECT CompanyID, UserID, CompanyName, CompanyAddress, CompanyCity, CompanyIndustry, CompanyContact, CompanyNotes, CreatedDate, UpdatedTime, UpdatedBy FROM company WHERE UserID = ?");
$stmt->bind_param("i", $user_id);
$stmt->execute();
/* Store the result (to get properties) */
$stmt->store_result();
/* Get the number of rows */
$num_of_rows = $stmt->num_rows;
/* Bind the result to variables */
$companies = $stmt->bind_result($CompanyID, $UserID, $CompanyName, $CompanyAddress, $CompanyCity, $CompanyIndustry, $CompanyContact, $CompanyNotes, $CreatedDate, $UpdatedTime, $UpdatedBy);
return $companies;
/* free results */
$stmt->free_result();
}
if you look there is no much changes which has been done to it but to store the results I have added a line after $stmt->execute(); $stmt->store_result();

Answer 2

If your getting an error with $stmt->get_result, it may be because of this:
it works only with mysqlnd driver (http://us2.php.net/manual/en/m.... Solve it by using this:
DbHandler.php
/**
* Fetching all user tasks
* #param String $user_id id of the user
*/
public function getAllUserTasks($user_id) {
$stmt = $this->conn->prepare("SELECT t.* FROM tasks t, user_tasks ut WHERE t.id = ut.task_id AND ut.user_id = ?");
$stmt->bind_param("i", $user_id);
$stmt->execute();
$stmt->bind_result($id, $task, $status, $created_at);
$tasks = array();
while($stmt->fetch()) {
$tmp = array();
$tmp["id"] = $id;
$tmp["task"] = $task;
$tmp["status"] = $status;
$tmp["createdAt"] = $created_at;
array_push($tasks, $tmp);
}
$stmt->close();
return $tasks;
}
and in index.php:
/**
* Fetching all user tasks
* #param String $user_id id of the user
*/
public function getAllUserTasks($user_id) {
$stmt = $this->conn->prepare("SELECT t.* FROM tasks t, user_tasks ut WHERE t.id = ut.task_id AND ut.user_id = ?");
$stmt->bind_param("i", $user_id);
$stmt->execute();
$stmt->bind_result($id, $task, $status, $created_at);
$tasks = array();
while($stmt->fetch()) {
$tmp = array();
$tmp["id"] = $id;
$tmp["task"] = $task;
$tmp["status"] = $status;
$tmp["createdAt"] = $created_at;
array_push($tasks, $tmp);
}
$stmt->close();
return $tasks;
}
I am guessing the code sample is from http://www.androidhive.info/2014/01/how-to-create-rest-api-for-android-app-using-php-slim-and-mysql-day-23/

Answer 3

I advise against using get_result() in any php code, simply because it requires mysqlnd to be installed, and is not supported in libmysql, which is the most common libary used for interfacing with mysql from php. instead, fetch() should be used to create an array of rows from the result set, or bind_result() for situations where you are only returning 1 row.
public function getAllUserTasks($user_id) {
$tasks = [];
$stmt = $this->conn->prepare("SELECT t.* FROM tasks t, user_tasks ut WHERE t.id = ut.task_id AND ut.user_id = ?");
$stmt->bind_param("i", $user_id);
$stmt->execute();
if($stmt->num_rows > 0)
{
while($row = $stmt->fetch())
{
$tasks[] = $row;
}
$stmt->close();
}
return $tasks;
}
EDIT
to use it index.php
$app->get('/companies', 'authenticate', function() {
global $user_id;
$db = new DbHandler();
// fetching all user tasks
$response = $db->getAllUserCompanies($user_id);
if(!empty($response))
{
echoRespnse(200, $response);
}else{
//handle your error
}
});