1
我下面這個教程：
http://coderexample.com/datatable-demo-server-side-in-phpmysql-and-ajax/數據表+服務器端處理+搜索過濾
，這裏是演示：
http://coderexample.com/demo/datatable-demo-server-side-in-phpmysql-and-ajax/
如果我在搜索輸入搜索ou我得到No matching records found但什麼我想返回的是至少這一行Airi Satou。
this是我必須改變的代碼，我認爲，因爲我必須執行搜索服務器端。
<?php
/* Database connection start */
$servername = "localhost";
$username = "root";
$password = "Password1";
$dbname = "test";
$conn = mysqli_connect($servername, $username, $password, $dbname) or die("Connection failed: " . mysqli_connect_error());
/* Database connection end */
// storing request (ie, get/post) global array to a variable
$requestData= $_REQUEST;
$columns = array(
// datatable column index => database column name
0 =>'employee_name',
1 => 'employee_salary',
2=> 'employee_age'
);
// getting total number records without any search
$sql = "SELECT employee_name, employee_salary, employee_age ";
$sql.=" FROM employee";
$query=mysqli_query($conn, $sql) or die("employee-grid-data.php: get employees");
$totalData = mysqli_num_rows($query);
$totalFiltered = $totalData; // when there is no search parameter then total number rows = total number filtered rows.
if(!empty($requestData['search']['value'])) {
// if there is a search parameter
$sql = "SELECT employee_name, employee_salary, employee_age ";
$sql.=" FROM employee";
$sql.=" WHERE employee_name LIKE '".$requestData['search']['value']."%' "; // $requestData['search']['value'] contains search parameter
$sql.=" OR employee_salary LIKE '".$requestData['search']['value']."%' ";
$sql.=" OR employee_age LIKE '".$requestData['search']['value']."%' ";
$query=mysqli_query($conn, $sql) or die("employee-grid-data.php: get employees");
$totalFiltered = mysqli_num_rows($query); // when there is a search parameter then we have to modify total number filtered rows as per search result without limit in the query
$sql.=" ORDER BY ". $columns[$requestData['order'][0]['column']]." ".$requestData['order'][0]['dir']." LIMIT ".$requestData['start']." ,".$requestData['length']." "; // $requestData['order'][0]['column'] contains colmun index, $requestData['order'][0]['dir'] contains order such as asc/desc , $requestData['start'] contains start row number ,$requestData['length'] contains limit length.
$query=mysqli_query($conn, $sql) or die("employee-grid-data.php: get employees"); // again run query with limit
} else {
$sql = "SELECT employee_name, employee_salary, employee_age ";
$sql.=" FROM employee";
$sql.=" ORDER BY ". $columns[$requestData['order'][0]['column']]." ".$requestData['order'][0]['dir']." LIMIT ".$requestData['start']." ,".$requestData['length']." ";
$query=mysqli_query($conn, $sql) or die("employee-grid-data.php: get employees");
}
$data = array();
while($row=mysqli_fetch_array($query)) { // preparing an array
$nestedData=array();
$nestedData[] = $row["employee_name"];
$nestedData[] = $row["employee_salary"];
$nestedData[] = $row["employee_age"];
$data[] = $nestedData;
}
$json_data = array(
"draw" => intval($requestData['draw']), // for every request/draw by clientside , they send a number as a parameter, when they recieve a response/data they first check the draw number, so we are sending same number in draw.
"recordsTotal" => intval($totalData), // total number of records
"recordsFiltered" => intval($totalFiltered), // total number of records after searching, if there is no searching then totalFiltered = totalData
"data" => $data // total data array
);
echo json_encode($json_data); // send data as json format
?>
我有權說這是我必須改變的代碼嗎？
如果是這樣，任何人都可以建議我必須做什麼？
我明白這是很多問，但會很感激的指導！
不要以爲索引在這種情況下很重要，但也是很好的一點。 我正在努力尋找每列，但我很難。問我問[這裏]（http://stackoverflow.com/questions/36706424/datatables-connecting-to-a-db-getting-data-but-some-features-not-working）。也許你在正確的方向上指向我？ 而且我必須對每列做同樣的事情，例如搜索'27'這個工資'162700'出現。 – HattrickNZ
@HattrickNZ我不知道如果這個問題現在回答與否的評論 – 2016-04-26 22:57:12