How do i access multiple nested json data - php

Question

I am having issues accessing the nested data from this. I can access the first top level object but not the nested data. Any suggestions, Thnx
{"userInput":{"relaSource":"DailyMed","relas":"has_EPC","drugName":"intuniv"},"rxclassDrugInfoList":{"rxclassDrugInfo":[{"minConcept":{"rxcui":"40114","name":"Guanfacine","tty":"IN"},"rxclassMinConceptItem":{"classId":"N0000175554","className":"Central alpha-2 Adrenergic Agonist","classType":"EPC"},"rela":"has_EPC","relaSource":"DAILYMED"}]}}
my code is as follows (some functions are tests) but i need to access all datapoints..... relaSource, relas, drugName, rxclassDrugInfoList-> rxclassDrugInfo, minConcept, rxcui, name, tty,
<?php
$url = 'https://rxnav.nlm.nih.gov/REST/rxclass/class/byDrugName.json?drugName=intuniv&relaSource=DailyMed&relas=has_EPC'; // path to your JSON file
$data = file_get_contents($url); // put the contents of the file into a variable
echo $data;
echo "<br/>";
$jsonObj = json_decode($data);
echo "<br/>" . $jsonObj->userInput->relaSource;
echo "<br/>" . $jsonObj->userInput->relas;
echo "<br/>" . $jsonObj->userInput->drugName;
echo "<br/>";
echo "A2";
?>
<?php
foreach ($jsonObj as $data) {
$relaSource = $data->relaSource;
$content = $data->relaSource;
?>
<h1> <?php echo $relaSource; ?></h1>
<h1> <?php echo $content; ?> </h1>
<?php } ?>
$rxclassDrugInfoList = $jsonObj['rxclassDrugInfoList'];
echo $rxclassDrugInfoList['rxclassDrugInfo']."<br/>";
/////////////////////////////////////////////////////////////////////////////
<h2>TEST</h2>
<?php
$url = 'https://rxnav.nlm.nih.gov/REST/rxclass/class/byDrugName.json?drugName=intuniv&relaSource=DailyMed&relas=has_EPC'; // path to your JSON file
$data = file_get_contents($url); // put the contents of the file into a variable
// JSON string
//$someJSON = '[{"name":"Jonathan Suh","gender":"male"},{"name":"William Philbin","gender":"male"},{"name":"Allison McKinnery","gender":"female"}]';
// Convert JSON string to Array
$someArray = json_decode($data, true);
print_r($someArray); // Dump all data of the Array
echo $someArray[0]["userInput"]; // Access Array data
///////////////////////////////////////////////////////////////////////////////////////////
// Convert JSON string to Object
$someObject = json_decode($data);
print_r($someObject); // Dump all data of the Object
echo $someObject[0]->userInput; // Access Object data
// Convert JSON string to Array
$someArray = $someObject[0]->userInput;
print_r($someArray); // Dump all data of the Array
echo $someArray[0]["name"]; // Access Array data
echo "<br/>";
echo "<br/>";
echo "<br/>";
?>
I know it is just a problem with addressing items that are nested incorrectly.

Answer 1

**Here is all the datapoints that u needed **
<?php
$json = '{"userInput":{"relaSource":"DailyMed","relas":"has_EPC","drugName":"intuniv"},"rxclassDrugInfoList":{"rxclassDrugInfo":[{"minConcept":{"rxcui":"40114","name":"Guanfacine","tty":"IN"},"rxclassMinConceptItem":{"classId":"N0000175554","className":"Central alpha-2 Adrenergic Agonist","classType":"EPC"},"rela":"has_EPC","relaSource":"DAILYMED"}]}}';
var_dump($json);
var_dump(json_decode($json)->userInput);
var_dump(json_decode($json)->rxclassDrugInfoList);
var_dump(json_decode($json)->userInput->relaSource);
var_dump(json_decode($json)->userInput->relas);
var_dump(json_decode($json)->userInput->drugName);
var_dump(json_decode($json)->rxclassDrugInfoList->rxclassDrugInfo[0]->minConcept->rxcui);
var_dump(json_decode($json)->rxclassDrugInfoList->rxclassDrugInfo[0]->minConcept->name);
var_dump(json_decode($json)->rxclassDrugInfoList->rxclassDrugInfo[0]->minConcept->tty);
var_dump(json_decode($json)->rxclassDrugInfoList->rxclassDrugInfo[0]->rxclassMinConceptItem->classId);
?>