passing array value from API

Hey Guys, I have a question here. How can I passing the value inside student_info into university? This is how my API response looks right now

"university": [
    {
        "student_info": {
            "studentID": "511000000012029",
            "student_firstName": "John",
            "student_lastName": "Smith",
            "student_contactNumber": "750000000000023",
            "student_paymentType": "1"
           }
     }
]

And this is my function in UniversityController.php

$studInfo = [];

$studInfoResp = $this->student->getStudentInfo($accountReq);

if(isset($studInfoResp['university']) && count($studInfoResp['university']) > 0) {
    foreach($accountResp['cms_acctBasicList'] as $account) {
        $accountInfoReq = ['cms_acctCode' => $account['cmc_acctCode']];
        $accountInfoResp = $this->billing->getAccountInfo($accountInfoReq, false);

        $accountInfo = isset($accountInfoResp['cms_accountInfo']) ? $accountInfoResp['cms_accountInfo'] : null;
        $accountList[$account['cmc_acctId']] = [];

        foreach($studInfoResp['university'] as $key => $student) {
		// display all the studentInfo
        $studsInfo = isset($studInfoResp['university']) ? $studInfoResp['university'] : null;
                                
			if($account['cmc_acctId'] === $student) {
				array_push($studsInfo, $key);
			}
        }
        $accountInfo['university'] = $studsInfo;
        array_push($accountList[$account['cmc_acctId']], $accountInfo);
       }
}

I would like to have my final result in API response be like this:

"university": [
    {
        "studentID": "511000000012029",
        "student_contactNumber": "750000000000023",
        "student_paymentType": "1",
    }
]