我正在尝试使用PHP做待办事项
但出现此错误警告:非法字符串偏移量“ todo”
$userhastodo = "";
$toDo_Query = "SELECT * FROM `todo` WHERE `for`='".$_SESSION['id']."'";
$toDo_run_query = mysqli_query($link , $toDo_Query);
$toDo_num_rows = mysqli_num_rows($toDo_run_query);
if($toDo_num_rows >= 1){
$toDo_get_info = mysqli_fetch_array($toDo_run_query);
$toDo_info = $toDo_get_info;
foreach($toDo_info as $info){
echo $info['todo'];
}
}
else{
$userhastodo = "You have no lists here :( !";
}
那是在我的todo.php页面的顶部
在html部分
<?php if(empty($toDo_get_info)):?>
<div class="empty">
<i class="fa fa-meh-o fa-5x"></i>
<h3>Strange, no lists found!</h3>
</div>
<?php else: ?>
<ul class="list">
<?php foreach($toDo_info as $info_in_toDo):?>
<li><span><?php echo $info_in_toDo['todo']?></span></li>
<?php endforeach;?>
</ul>
<?php endif;?>
我怎样才能解决这个问题 ?它不断警告我=>警告:非法字符串偏移量'todo'
待办事项存在于我的mysql数据库中,其中包含待办事项活动的数据
最佳答案
如果您查看此部分:
$toDo_get_info = mysqli_fetch_array($toDo_run_query);
$toDo_info = $toDo_get_info;
foreach($toDo_info as $info){
echo $info['todo'];
}
您会看到从结果集中获得一行,因此
$toDo_info
是包含一整行的一维数组。您用
foreach
遍历该行,以便从该行获取所有值,它们是字符串,而不是数组。您只需要:
echo $toDo_get_info['todo'];
编辑:要获取所有行并回显所有项目,您需要获取所有行:
while ($toDo_get_info = mysqli_fetch_array($toDo_run_query))
{
// add your html to add list items here as well
echo $toDo_get_info['todo'];
}
关于php - 警告:字符串偏移量'todo'|的PHP,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/29592007/