Php 使用var_dump（）时变量different的值

我有一个将CSV文件插入数据库的功能。我的项目使用Yii框架，但这个类与Yii无关

导入成功，但在打印导入的行数时遇到问题

我的类有多个文件，但只有一个文件：

class LsuController extends BackEndController {
    public function dbconfig(){
        $dbconfig = array();
        $dbconfig['dsn'] = 'mysql:host=localhost;dbname=bs_dev_csueastbay';
        $dbconfig['username'] = 'root';
        $dbconfig['password'] = '';
        return $db = new PDO($dbconfig['dsn'], $dbconfig['username'], $dbconfig['password']);
    }

    public function actionIndex() {
        // Config database
        $db = $this->dbconfig();

        $has_err = 0;
        $link = dirname(__FILE__)."/../../../runtime/Import/";
        $handles = array();
        $handles[] = fopen($link."bookPictureMappings.csv","r");

        foreach ($handles as $handle) {
            if(!$handle){
                $has_err++;
            }
        }
        if($has_err == 0){
            foreach ($handles as $key=>$handle) {
                switch ($key) {
                    case '0':
                    $i = 0;
                    $model_err = 0; $ss = 0;
                    do { 
                        if (isset($data[0])) {
                            if($i > 0){
                                $sql="INSERT INTO bookpicturemappings (Id, BookId, PictureId, bookpicturemappings.Order) VALUES (
                                    :Id, :BookId, :PictureId, :bookOrder)";

                                $command = $db->prepare($sql);
                                $command->bindParam(":Id",$data[0],PDO::PARAM_STR);
                                $command->bindParam(":BookId",$data[1],PDO::PARAM_STR);
                                $command->bindParam(":PictureId",$data[2],PDO::PARAM_STR);
                                $command->bindParam(":bookOrder",$data[3],PDO::PARAM_STR);

                                if ($command->execute()){
                                    $ss++;
                                }
                            }
                            $i++;
                        } 
                    } while ($data = fgetcsv($handle,0,",","\""));

                    echo "Insert bookpicturemappings.csv successful! Total: ".($i-1)." - Import: ".$ss." - Error: ".$model_err."<br>";
                    break;
...............................

结果是$ss=1862：

插入bookpicturemappings.csv成功！总数：1862-进口：1862 -错误：0

---

WT。。。？我不明白为什么？

检查$handles中的最新项目，我猜它是文件末尾的空换行符？$ss设置为0，但不循环

编辑

您的上一次迭代为false，但仅在执行块后检查条件

尝试放弃do并像这样使用while：

while ($data = fgetcsv($handle,0,",","\"")){ 
    if (isset($data[0])) {
        if($i > 0){
            $sql="INSERT INTO bookpicturemappings (Id, BookId, PictureId, bookpicturemappings.Order) VALUES ( :Id, :BookId, :PictureId, :bookOrder)";
            $command = $db->prepare($sql);
            $command->bindParam(":Id",$data[0],PDO::PARAM_STR);
            $command->bindParam(":BookId",$data[1],PDO::PARAM_STR);
            $command->bindParam(":PictureId",$data[2],PDO::PARAM_STR);
            $command->bindParam(":bookOrder",$data[3],PDO::PARAM_STR);
            if ($command->execute()){
                $ss++;
            }
        }
        $i++;
    }
}; 

---

最新的项不是空的，我在一个项中回显$ss。您的最终$handle得到执行了吗？检查它说：除了真值表达式在每次迭代结束时而不是在开始时被检查之外。试一下不要“做”。还有一个潜在的缺陷：在第一次迭代中，$i等于零。这意味着您的第一条语句将不会被执行。当然，除非第一行应该被忽略。尝试添加ERRMODE_异常并向我们显示结果，可能您的PDO查询运行不正确。

while ($data = fgetcsv($handle,0,",","\"")){ 
    if (isset($data[0])) {
        if($i > 0){
            $sql="INSERT INTO bookpicturemappings (Id, BookId, PictureId, bookpicturemappings.Order) VALUES ( :Id, :BookId, :PictureId, :bookOrder)";
            $command = $db->prepare($sql);
            $command->bindParam(":Id",$data[0],PDO::PARAM_STR);
            $command->bindParam(":BookId",$data[1],PDO::PARAM_STR);
            $command->bindParam(":PictureId",$data[2],PDO::PARAM_STR);
            $command->bindParam(":bookOrder",$data[3],PDO::PARAM_STR);
            if ($command->execute()){
                $ss++;
            }
        }
        $i++;
    }
};