PHP PDO插入语句未通过

Question

我正在构建一个 Web 应用程序，用户可以在其中创建新项目。

我已经处理了几天，我完全被难住了！
我有一个“新建项目”按钮，当您单击它时，它会调用一个 newProject 函数（并传递新项目所在文件夹的 ID。但这并不重要。）
这就是那个 javascript 函数的样子。

function newProject(parentFolder) {
    //this is here because the data type stored in the database is varchar and if the value is 'none' then there the project being created will bi in no folder.
    if(parentFolder != 'none') { //convert to nonstring
        var PF = parentFolder;
    }else {
        var PF = 'none';
    }

    //create the new project
    $.post('../../php/new_project.php', { parentFolder: PF, name: 'New Project' }, function(data) {
        alert(data);
    });

}

new_project.php文件连接正常，所有变量都通过。

这里是 new_project.php 文件

session_start();

    if(isset($_SESSION['username'])){
        $username = $_SESSION['username'];
        if(isset($_SESSION['name'])){
            $name = $_SESSION['name'];
        }
    }

if(isset($_POST['name'])) {

    $parentFolder = $_POST['parentFolder'];
    $name = $_POST['name'];
    $date = date('Y/m/d');
    $openId;
    for ($i=0;$i<10;++$i)
            $openId.= ($r=mt_rand(0,35))<26?chr(ord('a')+$r):chr(ord('0')+$r-26);

    $conn = new PDO('mysql:host=localhost;dbname=projects', "******", "*******");

    $sql = "INSERT INTO projects (id, ProjectName, creatorOfProject, public, lastEdited, openId, deleted, parentfolder, favorite) VALUES (:id, :ProjectName, :creatorOfProject, :public, :lastEdited, :openId, :deleted, :parentfolder, :favorite)";

    $query = $conn -> prepare($sql);
    $query -> execute(array(
        ":id"                               => '',
        ":ProjectName"          => $name,
        ":creatorOfProject" => $username,
        ":puclic"                       => '',
        ":lastEdited"               => $date,
        ":openId"                       => $openId,
        ":deleted"                  => '',
        ":parentfolder"         => $parentFolder,
        ":favorite"                 => ''
    ));

}else { 
    echo 'something went wront';
}

因为我正在警告从该文件传递的数据，所以它只会弹出一个空白警告框。 也没有javascript错误。

Answer 1

您有一个错字，但看起来您正在传递不需要的空字符串：

$sql = "INSERT INTO projects (id, ProjectName, creatorOfProject, public, lastEdited, openId, deleted, parentfolder, favorite) 
        VALUES (null, :ProjectName, :creatorOfProject, null, :lastEdited, :openId, null, :parentfolder, null)";

$query = $conn -> prepare($sql);
$query -> execute(array(
    ":ProjectName"          => $name,
    ":creatorOfProject" => $username,
    //":public"                       => '',
    //    ^ Typo was there.
    ":lastEdited"               => $date,
    ":openId"                       => $openId,
    ":deleted"                  => '',
    ":parentfolder"         => $parentFolder,
    ":favorite"                 => ''
));

我从您正在使用的数组/占位符中删除了其他空字符串，并在插入语句中将它们替换为 null。