php - （未定义的偏移量：0）无法生成更多数据进行故障排除
问题描述
今天早上我的网络应用程序正在运行。发表了几篇文章后，我尝试登录并得到未定义的偏移量：0 错误。
我从 Laravel 获得的唯一信息是它位于文件路径 laravel\framework\src\Illuminate\Support\Collection.php
在这个文件上，它说错误在第 1688 行：
public function offsetGet($key)
{
return $this->items[$key];
}
根据我在网上发现的情况，该问题与错误的数据通话有关。也许试图提取不存在的数据。我查看了我的数据库，最后 4 个帖子和评论没有任何文件附件，所以我不确定从哪里开始查找。
此外，该代码是几年前由一位同事编写的，这使我更难以破译。
这是我的刀片文件：
@if(app('request')->input('gid'))
<input type="hidden" class="groupid_SeeMore" value="{{app('request')->input('gid')}}"/>
@endif
@foreach($timeline as $post)
<?php
/** the Below Script will grab all Group Names that go with the post and combine into a single stirng **/
$groups= array();
if(strpos($post->grouppermissions,"|")===false){
foreach(explode(',',$post->grouppermissions) as $id){
if($id!=""){
$group = DB::table('groups')->where('groupid','=',$id)->get();
// $groups[] .= $group[0]->name;
$groups[].=explode('|',$group[0]->name)[0];
}
}
}elseif(strpos($post->grouppermissions,"|")!==false){
foreach(explode(',',$post->grouppermissions) as $group){
if($group!="")$groups[].=explode('|',$group)[0];
}
}
$groups=implode(',',$groups);
?>
@if($post->status==0)
<div id="{{$post->id}}" class="Post_Container {{$post->type}} {{$post->type}}{{$post->id}}">
@endif
@if($post->status==1)
<div id="{{$post->id}}" class="Post_Container_Two {{$post->type}} {{$post->type}}{{$post->id}}"><center><p id="cldpsttxt">This post has been closed</center>
@endif
@if($post->favorite==0)
<div class="Post_Header Post_CCthbckgrnd" id="Post_Header{{$post->id}}">
@endif
@if($post->favorite==1)
<div class="Post_Header Post_CCthbckgrnd_Two" id="Post_Header{{$post->id}}"><center><p id="fvrtpsttxt">This post has been Favorited</center>
@endif
<input type="hidden" class="lastid" value="{{$post->id}}"/>
<input type="hidden" class="recent_comment" value="{{$post->recent_comment}}"/>
<div class="Profile_Picture_Container">
<div class="Profile_Picture"><img style="width:100%; height:100%;" src="https://www.vqventure.com/{{$post->pinfo[0]->img}}"/></div>
</div>
@if($groups !="")
<div class="Ginfo">
<center>
<!-- Below the if statement looks for posts with only one group permission-->
@if(strpos($groups, ",") === false)
<a href="https://www.vqventure.com/getGroupData?gid={{str_replace(",","",$post->grouppermissions)}}"><b>{{$groups}}</b></a>
@endif
<!-- Below the if statement looks for posts with multiple group permissions-->
@if(strpos($groups, ",") !== false)
<?php
$key = -1;
$perm = explode(',',$post->grouppermissions);
?>
@foreach(explode(',',$groups) as $group)
<?php $key++;?>
@if($group!="")
<a href="https://www.vqventure.com/getGroupData?gid={{$perm[$key]}}"><b>{{$group}}</b></a>
@endif
@endforeach
@endif
</center>
</div>
@endif
<div class="Username_Container">
<div class="Username_Location">
<!--This will be the owner of the post name, for a business it will be the employee name-->
<div class="Username"><a href="tel:{{$post->pinfo[0]->phone}}"><b>{{$post->pinfo[0]->name}}</b></a></div>
</div>
</div>
@if($post->bid != 0 && $post->bid==$user->bid || $post->bid==0 && $post->owner == $user->email)
<div class="Favorite_Container">
<button id="favorite" class="favorite{{$post->id}}" type="{{$post->favorite}}" type2="Timeline"value="{{$post->id}}"></button>
<button id="openclose" class="status{{$post->id}}" type="{{$post->status}}" type2="Timeline" value="{{$post->id}}"></button>
@if($user->bid!=0)
<div class="keywordTypes">
<select class="keywordType" id="{{$post->id}}">
<?php
$cat=$post->category;
if($cat=="")$cat="No category";
?>
<option value="{{$post->category}}" selected>{{$cat}}</option>
@foreach(explode('#$#',$types) as $type)
@if($type!="")<option value="{{$type}}">{{$type}}</option>@endif
@endforeach
</select>
</div>
@endif
</div>
@endif
<b style="position:absolute; top:10%; right:22%;">#{{$post->id}}</b>
@if($post->bid != 0 && $user->admin==1 && $post->bid==$user->bid || $post->owner == $user->email )
<div class="Delete_Button_Container">
<button class="PostDeleteButton" value="{{$post->id}}" id="DeleteMainBTN"></button>
</div>
@endif
</div>
<center>
<!-- Video -->
@if($post->videos!="[]")
<div class="Post_ContentContainer">
<div class="Post_Thumbnail_Container" pid="{{$post->id}}">
<a class="watchVideo" type="" id="{{$post->videos[0]->url}}">
<center> <div class="Post_Thumbnail">
<?php
$vpic = substr($post->videos[0]->url,0,-3)."jpg";
$vpic2 = str_replace("_correted","",$vpic);
?>
<img style="width:100%; height:100%;"src="https://www.vqventure.com/{{$vpic}}" onerror="this.src='https://www.vqventure.com/{{$vpic2}}'" class="video_thumbnail"/>
</div></center>
</a>
</div>
</div>
@endif
<!-- PDF -->
@if($post->else!="[]")
@if($post->else[0]->pics!="" || $post->else[0]->pdf!="")
<div class="Post_ContentContainer">
<div class="Post_Thumbnail_Container" pid="{{$post->id}}">
@if($post->else[0]->pdf!="")
<center><div class="Post_Thumbnail"><a id="wtfPDF" href="https://www.vqventure.com/<?php echo explode('$!$',$post->else[0]->pdf)[0];?>"><img id="PDF_postview" src="https://www.vqventure.com/imgs/pdf.jpeg"/></a></div></center>
@endif
<!-- Images -->
@if($post->else[0]->pics!="")
<center>
<div>
<ul class="Post_Thumbnail" style="list-style-type: none;" id="IMAGES">
@foreach(explode("$!$",$post->else[0]->pics) as $file)
@if($file !="")
<li><img id="IMG_postview" pid="{{$post->id}}"src="https://www.vqventure.com/{{$file}}" class="IMG_postview{{$post->id}}"/></li>
@endif
@endforeach
</ul>
</div>
</center>
@endif
</div>
</div>
<!--This is the end of if pics and pdf-->
@endif
@endif
</center>
<div class="Post_Info_Container2 Post_CCthbckgrnd">
<div class="Post_Info_Header">
<div class="Date_Container">
<!--Input the Date here -->
<?php
$date= explode(' ',$post->timestamp)[0];
$time= explode(" ",$post->timestamp)[1];
?>
<div class="Date"><center><b>{{$date}}</b></center></div>
</div>
<div class="VidTime_Container">
<!--Input the length of the video here -->
<div class="VidTime"><center></center></div>
</div>
<div class="TimeStamp_Container">
<!--Input the TimeStamp here -->
<div class="TimeStamp"><center><b>{{$time}}</b></center></div>
</div>
</div>
@if($post->videos!="[]")
<div class="Post_Title_Container">
<div class="Post_Title_Name"><center><b>Title:</b></center></div>
<div class="Post_Title">{{$post->videos[0]->title}}</div>
</div>
@endif
<div class="Post_Description_Container">
<div class="Post_Description_Name"><center><b>Description:</b></center></div>
<div class="Post_Description">
@if($post->videos!="[]") {!!nl2br(e($post->videos[0]->description)) !!}
@else
<p>{!! nl2br(e($post->else[0]->post)) !!}</p>
@endif</div>
</div>
</div>
@if($showComments=="yes")
<div class="Post_CommentContainer" id="Make_Comment{{$post->id}}">
<textarea class="Post_Comment_TextContainer Post_Comment_TextContainer{{$post->id}}" placeholder="Comment" maxlength="300" rows="2" onkeydown="expandtext(this);" ></textarea>
<input type="hidden" class="gperms{{$post->id}}" value="{{$post->grouppermissions}}"/>
<button class="ChooseFile"><label id="CF" for="CFile{{$post->id}}"></label> <input type="file" name="imgs[]" class="CFile" id="CFile{{$post->id}}" multiple/></button>
<input type="hidden" value="{{ csrf_token() }}" class="CToken{{$post->id}}"/>
<div class="Post"><button id="Pst" pid="{{$post->id}}" ></button></div>
</div>
@if($post->comments!="[]")
<div class="Post_CommentFeedContainer Post_CommentFeedContainer{{$post->id}}">
@foreach($post->comments as $comment)
@if($comment->owner==$user->email)
<div class="Owner_CommentContainer" id="CommentId{{$comment->id}}">
<div class="OCC_Left">
<div class="C_Owner_Name"><center>{{$comment->info[0]->name}}</center></div>
</div>
<div class="OCC_Right">
<div class="C_TimeStamp"><center>{{$comment->timestamp}}</center></div>
@if($post->bid != 0 && $post->bid==$user->bid || $post->bid==0 && $comment->owner == $user->email)
<button class="Delete_Button" value="{{$comment->id}}" id="C_dltbtn" type="Timeline"></button>
@endif
</div>
<div id="CTwo">{!!nl2br(e($comment->comment)) !!}</div>
@if($comment->files!="")
<div class="Owner_Media_Container CommentImages" cid="{{$comment->id}}">
@foreach(explode('#%%#',$comment->files) as $file)
@if(strpos($file, '.pdf') === false && $file!="")<div class="Media_Thumbnail"><img style="width:100%; height:100%;" src="https://www.vqventure.com/{{$file}}" class="CImage{{$comment->id}}"/></div>
@elseif(strpos($file, '.pdf') !== false)<div class="Media_Thumbnail"><a href="https://www.vqventure.com/{{$file}}"><img style="width:100%; height:100%;" src="https://www.vqventure.com/imgs/pdf.jpeg"/></a></div>
@endif
@endforeach
</div>
@endif
</div>
@endif
@if($comment->owner!=$user->email)
<div class="Guest_CommentContainer CommentImages" id="CommentId{{$comment->id}}" cid="{{$comment->id}}">
<div class="GCC_Left">
@if($comment->files!="")
<div class="Guest_Media_Container">
@foreach(explode('#%%#',$comment->files) as $file)
@if(strpos($file, '.pdf') === false && $file!="")<div class="Media_Thumbnail" ><img style="width:100%; height:100%; " src="https://www.vqventure.com/{{$file}}" class="CImage{{$comment->id}}"/></div>
@elseif(strpos($file, '.pdf') !== false)<div class="Media_Thumbnail" ><a href="https://www.vqventure.com/{{$file}}"><img style="width:100%; height:100%; " src="https://www.vqventure.com/imgs/pdf.jpeg"/></a></div>
@endif
@endforeach
</div>
@endif
@if($comment->files!="")
<div class="C_TimeStamp_Guest_Two"><center>{{$comment->timestamp}}</center></div>
@endif
@if($comment->files=="")
<div class="C_TimeStamp_Guest"><center>{{$comment->timestamp}}</center></div>
@endif
</div>
<div class="GCC_Right">
<div class="C_Guest_Name"><a href="tel:{{$comment->info[0]->phone}}"><center>{{$comment->info[0]->name}}</center></a></div>
@if($post->bid != 0 && $post->bid==$user->bid && $user->admin==1|| $post->bid==0 && $comment->owner == $user->email)
<button class="Delete_Button" value="{{$comment->id}}" id="C_dltbtn"></button>
@endif
</div>
<div id="COne">{!! nl2br(e($comment->comment)) !!}</div>
</div>
@endif
@endforeach
</div>@endif
@if($post->comments!="[]") <div class="ExpandComment_Container" ><center><div class="Display_AllComments"><button class="Show_All_Comments" id="{{$post->id}}" action=1>Expand Comments...</button></div></center></div> @endif
@endif
</div>
<div id="loading-image" style="display:none; top: 10px; position:relative;"><i>Uploading Comment Please wait....</i></div>
@endforeach
这是我的控制器：
public function timeline(Request $request){
if(!isset($this->user->email)){
if(!$request->queryType)return redirect('/');
}
if(isset($this->user->email)){
$email = $this->user->email;
// This needs to query where permissions are equal to the email and the owner = email
$mygroups= groups::where('owner','=',$email)->orwhere('groupadmin','LIKE',"%$email%")->orwhere('members','LIKE',"%$email%")->get();
$groups= "";
foreach($mygroups as $group){
if($group!="")$groups.=','.$group->groupid."$!$".$group->name;
}
$groups=explode(',',$groups);
$timeline = timeline::with('else','videos','comments');
if(!$mygroups->isEmpty()){
$timeline = $timeline->where(function ($query) use($groups) {
for ($i = 0; $i < count($groups); $i++){
if($groups[$i]!=""){
$gid=explode('$!$',$groups[$i])[0];
$gname = explode('$!$',$groups[$i])[1];
$query->orWhere('grouppermissions', 'like', '%' . $gid .'%')
->orWhere('grouppermissions', 'like', '%' . $gname .'%');
}
}
});
$timeline=$timeline->orwhere('owner','=',$this->user->email);
}
if($mygroups->isEmpty()) $timeline=$timeline->where('owner','=',$this->user->email);
if($request->queryType=="Original")$timeline=$timeline->orderBy('id','desc');
if($request->queryType=="Recent" || !$request->queryType)$timeline = $timeline->orderBy('recent_comment','desc')->orderBy('timestamp','desc');
$timeline=$timeline->limit(15)->get();
foreach($timeline as $g){
//THis is for grab business or user info for a post , maynot need it
$pinfo = user::where('email','=',$g['owner']);
$pinfo = $pinfo->get();
$g['pinfo']=$pinfo;
if($g['pinfo'][0]['name']==null)$g['pinfo'][0]['name']=$g['pinfo'][0]['companyname'];
$g['type']="";
foreach($g['comments'] as $c){
$info = user::select("name","img","phone")->where('email','=',$c['owner']);
$info = $info->limit(1)->get();
$c['info']=$info;
$ctimestamp = strtotime($c['timestamp']);
$cdate = new DateTime("@".$ctimestamp); // will snap to UTC because of the
$cdate->setTimezone(new DateTimeZone('America/New_York'));
$c['timestamp']=$cdate->format('Y-m-d H:i:s');
}
$timestamp = strtotime($g['timestamp']);
$date = new DateTime("@".$timestamp); // will snap to UTC because of the
$date->setTimezone(new DateTimeZone('America/New_York'));
$g['timestamp']=$date->format('Y-m-d H:i:s');
}
//if($this->user->admin==1){
//the $list will need to be the businesses branches data exploded by ','
$branches = DB::table('users')
->wherein('email',explode(',',$this->user->branches))->select('bid','email','name')
->get();
// The next few lines are for invitessent
// }
$sess= $this->user->invitessent;
$emails = explode(",",$sess);
$info = array();
foreach($emails as $email){
$test =user::select("name","img")->where('email','=',$email)->limit(1)->get();
if(!$test->isEmpty())$info[]=$test;
}
$website = $this->user->website;
$posts = DB::table('inquiry')->select('*')->where('bid','=', $this->user->bid)->latest()->get();
$types="";
if($this->user->bid!=0){
$biz= user::select('keywords')->where(array(['bid','=',$this->user->bid],['admin','=',1]))->limit(1)->get();
$types = $biz[0]->keywords;
}
if(!$request->queryType)return view('layouts.Timeline',['timeline'=>$timeline,'types'=>$types,'branches'=>$branches, 'posts'=>$posts ,'showComments'=>'yes','user'=>$this->user,'gp_admins'=>'','gp_members'=>'','type'=>'timeline']);
if($request->queryType)return view('includes.Timeline_Posts',['timeline'=>$timeline,'types'=>$types,'user'=>$this->user,'showComments'=>'yes']);
}
}
除了解决问题并允许用户访问他们的数据之外，我希望有人可以帮助我了解导致问题的原因。
整个项目正在重建过程中，我想避免从这个结构的经验教训中进行改造的问题。但是，在我们完成改造之前，我需要快速修复它以使其重新上线。
更新：我将代码更改为使用 ->first 而不是 [0] 但它仍然给出同样的问题。我认为这个问题与以下代码行有关，但不确定如何......
<?php
$key = -1;
$perm = explode(',',$post->grouppermissions);
?>
@foreach(explode(',',$groups) as $group)
<?php $key++;?>
到目前为止，我还没有取得任何进展......
解决方案
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