Question

我试图将数组分配给另一个数组问题是它一直声明未定义的偏移量。虽然当我回答其他变量时，它们的格式与有问题的变量类似，但它们可以正常显示。请帮忙。谢谢。

function searchAllIncoming(){

    $rows[] = array();
    $rows2[] = array();
    $rows3[] = array();

    $i = 0;
    $companyName = $this->db->query("SELECT id, name from company");
    foreach($companyName->result_array() as $row2){
        $rows2[$i]['id'] = $row2['id'];
        $rows2[$i]['name'] = $row2['name'];
        $i++;
    }       
    //get all company names

    $i = 0;
    $staffName = $this->db->query("SELECT id, surname, firstName, middleInitial from employee");
    foreach($staffName->result_array() as $row3){
        $rows3[$i]['id'] = $row3['id'];
        $rows3[$i]['name'] = $row3['surname'].", ".$row3['firstName']." ".$row3['middleInitial'];
        $i++;
    }
    //get all employee names

    $i= 0;
    $output = $this->db->query("SELECT * from incoming ORDER BY incomingId LIMIT 20");

    foreach($output->result_array() as $row){
        $count = 0;
        $j = 0;
        $rows[$i]['incomingId'] = $row['incomingId'];
        $rows[$i]['referenceNo'] = $row['referenceNo'];
        $rows[$i]['documentTypeId'] = $row['referenceNo'];
        $rows[$i]['documentDate'] = $row['documentDate'];
        $rows[$i]['dateReceived'] = $row['dateReceived'];
        $rows[$i]['sender'] = $row['sender'];

        while($count < sizeof($rows2)){
            if($rows2[$j]['id'] != $row['companyId']){
            $j++;
            } else {
                $rows[$i]['companyName'] = $rows2[$j]['name'];
                break;
            }
        }
        $j= 0;

        while($count < sizeof($rows3)){
            if($rows3[$j]['id'] != $row[$i]['responsibleStaffId']){
                $j++;
            } else {
                $rows[$i]['responsibleStaffName'] = $rows3[$j]['name'];
                break;
            }
        }

        $rows[$i]['subject'] = $row['subject'];
        $rows[$i]['actionDone'] = $row['actionDone'];

        $rows[$i]['track'] = $row['track'];
        $rows[$i]['completed'] = $row['completed'];
        $rows[$i]['remarks'] = $row['remarks'];
        $i++;
    }

    return $rows;
}

我的错误发生在：

$rows[$i]['responsibleStaffName']

and   

$rows[$i]['companyName']

Answer 1

你的代码中有两个while循环，它可能带有无限循环。如果“if condition”总是计算为true，那么它肯定是一个无限循环。请在每次循环后增加$ count值，如下所示。

while($count < sizeof($rows2)){
    if($rows2[$j]['id'] != $row['companyId']){
        $j++;
    } else {
        $rows[$i]['companyName'] = $rows2[$j]['name'];
        break;
    }

    ++$count;
}

请尝试使用上面的代码，它可能会帮助您调试实际故障的位置。

Answer 2

这行代码：

$rows3[$j]['id'] != $row[$i]['responsibleStaffId'];

应该只是

$rows3[$j]['id'] != $row['responsibleStaffId'];

如何正确地将输入放置到2D阵列

2 个答案: