在对服务器执行GET请求时，我设置的.PHP文件只返回最新的JSON对象，而不是整个数组。我认为它会被数组覆盖，而不是添加到数组中，但我对PHP不太熟悉，可能会指向正确的方向。
感谢您提前提供任何帮助，代码如下。
<?php
$result = mysql_query("SELECT * FROM books WHERE uni_year = '$uni_year' AND uni_course = '$uni_course'") or die(mysql_error());
if(!empty($result)) {
if (mysql_num_rows($result) > 0) {
$result = mysql_fetch_array($result);
// $result = mysql_fetch_array($result);
// while($row = mysql_fetch_array($result)){
// temp array
$books = array();
$books["list_id"] = $result["list_id"];
$books["book_title"] = $result["book_title"];
$books["uni_course"] = $result["uni_course"];
$books["uni_year"] = $result["uni_year"];
$books["book_author"] = $result["book_author"];
$books["book_price"] = $result["book_price"];
$books["book_year"] = $result["book_year"];
$books["isbn"] = $result["isbn"];
//}
// success
$response["success"] = 1;
// user node
$response["books"] = array();
array_push($response["books"], $books);
} else {
$response["success"] = 0;
$response["message"] = "num of rows bigger than zero";
}
} else {
$response["success"] = 0;
$response["message"] = "No product found";
echo json_encode($response);
}
echo json_encode($response);
} else {
$response["success"] = 0;
$response["message"] = "Required field(s) is missing";
echo json_encode($response);
}
?>
您只从结果（$result = mysql_fetch_array($result);）中获取第一条记录。
你需要在一个循环中获取它们：
<?php
$result = mysql_query("SELECT * FROM books WHERE uni_year = '$uni_year' AND uni_course = '$uni_course'") or die(mysql_error());
if(!empty($result)) {
if (mysql_num_rows($result) > 0) {
$books = array();
while($row = mysql_fetch_array($result)){
$book = array();
$book["list_id"] = $row["list_id"];
$book["book_title"] = $row["book_title"];
$book["uni_course"] = $row["uni_course"];
$book["uni_year"] = $row["uni_year"];
$book["book_author"] = $row["book_author"];
$book["book_price"] = $row["book_price"];
$book["book_year"] = $row["book_year"];
$book["isbn"] = $row["isbn"];
$books[] = $book;
}
// success
$response["success"] = 1;
// user node
$response["books"] = $books;
} else {
$response["success"] = 0;
$response["message"] = "num of rows bigger than zero";
}
} else {
$response["success"] = 0;
$response["message"] = "No product found";
}
echo json_encode($response);