Convert an array into string or object - php

Question

Good day, I am trying to convert an array "$list" into string or object. I have used following methods:
<?php
include "medclass.php";
session_start();
if (isset($_SESSION['mail']))
{
$list = $_SESSION['basket'];
}
else
header("location: clientsigninpage.php?msg= Log-in First");
$obj = new med_class;
$obj->connectdb();
$val = implode(";",$list); //implode method
$val = (object) $list; //object method
$val = serialize($list); //serialize method
$result = $obj->searchMed($val);
while ($row = $result->fetchObject())
{
echo $row->MedPrice;
}
?>
With "(object)" its giving me following error: "Object of class stdClass could not be converted to string", with "implode": "Array to string conversion" and with "serialize()" it does not print anything.
The function that I am passing value is:
function searchMed($v1)
{
$sql = "select * from storepreview where MedName = '$v1'";
$ret = $this->con->query($sql);
return $ret;
}
I have used these methods by seen following links: (http://www.dyn-web.com/php/arrays/convert.php) ; (Convert an array to a string); (How to convert an array to object in PHP?)

Answer 1

I managed to reproduce your "Array to string conversion" error when using the implode command by running the following line of code:
implode(";", [[]]); // PHP Notice: Array to string conversion in php shell code on line 1
For converting a nested array into a string I found that a foreach loop worked:
$nestedArray = ['outerKeyOne' => ['innerKeyOne' => 'valueOne'], 'outerKeyTwo' => ['innerKeyTwo' => 'valueTwo']];
$arrayOfStrings = [];
foreach ($nestedArray as $key => $value) {
$arrayOfStrings[] = implode(",", $value);
}
implode(";", $arrayOfStrings); // string(17) "valueOne;valueTwo"
The second error associated with the line $val = (object) $list; is from trying to embed an object into the $sql string. It seems like an object is not what you want here, unless it is an object that has a __toString() method implemented.
I hope this is of some help. Using var_dump or something similar would provide more debug output to better diagnose the problems along with the above error messages. That's how I came up with the above code.

Answer 2

You can use json_encode to convert Array to String:
$FINAL_VALUE = json_encode($YOUR_OBJECT);
For more information, you can refer this link.