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Mysqli_query不能在array_map函數內工作。我的代碼是:mysqli_query不能在array_map函數內工作
define('DB_SERVER','localhost');
define('DB_USERNAME','xxx');
define('DB_PASSWORD','yyy');
define('DB_NAME','fff');
$conn = mysqli_connect(DB_SERVER,DB_USERNAME,DB_PASSWORD,DB_NAME);
foreach($unique_array as $supplier)
{
$urep[]=$supplier['rep_name'];
$udate[]=$supplier['date'];
$ucid[]=$supplier['cid'];
$unique_arrayyy[] = array('rep_name'=>$supplier['rep_name'], 'date'=>$supplier['date']);
}
array_map(function ($var) {
$fetch_gdd=mysqli_query($conn,"select * from grade");
echo mysqli_num_rows($fetch_gdd); exit;
}, $unique_arrayyy);
$ unique_arrayyy包含多維數組值。我想在array_map函數中運行查詢。在獲取行時,它給了我一個空白窗口。請幫忙。
添加'error_reporting(E_ALL); ini_set('display_errors',1);'在<?php'廣告之後的頁面頂部也會改變爲: - '$ fetch_gdd = mysqli_query($ conn,「select * from grade」)或者死亡(mysqli_error($ conn ));' –