How to print only 4 values inside foreach loop? - php

There may be 5 or 6 values inside the foreach loop but i need to print suppose first 5 or 6 values.How do i do that?
<div class="tag-area">
#foreach(explode(',',$product->tags) as $tag)
<span>{{$tag}}</span>
#endforeach
</div>


You should try this:
<div class="tag-area">
#foreach(explode(',',$product->tags) as $key => $tag)
#if($key <= 5)
<span>{{$tag}}</span>
#endif
#endforeach
</div>


This will help you.
<div class="tag-area">
#foreach(explode(',',$product->tags) as $key => $tag)
#if($key <= 5)
<span>{{$tag}}</span>
#endif
#endforeach
</div>


If your key is numenric and its of indexed array you can directly do it like:
<div class="tag-area">
#foreach(explode(',',$product->tags) as $key => $tag)
#if($key <= 5)
<span>{{$tag}}</span>
#else
<?php break; ?>
#endif
#endforeach
OR try this;
<div class="tag-area">
<?php $cnt == 0; ?>
#foreach(explode(',',$product->tags) as $tag)
<span>{{$tag}}</span>
<?php
$cnt++;
if($cnt >= 5)
break;
?>
#endforeach
Remember break; will stop unnecessary execution of loop


if you have 10 element in array no need to iterate after 4 iteration so you should break foreach iteration
<div class="tag-area">
#foreach(explode(',',$product->tags) as $key=>$tag)
#if($key >= 4)
#break
#endif
<span>{{$tag}}</span>
#endforeach
</div>

Related

setting variables inside a Laravel foreach loop

I've just started using the framework. In plain PHP after the opening foreach I would then set the variables then close the php tag but then from what I can work out you have to then do the Laravel #foreach tags and then open and close #php. Is there a way around this as it seems like a lot of extra work and code?
#foreach($steps as $row)
#php
$title = $row->title;
$text = $row->text;
$i = 1;
#endphp
<div class="steps-item grid-wrap">
<div class="number"
#if($text || $title)
<div class="text-wrap">
#if($title)
<h2>{{$title}}</h2>
#endif
{!! $text !!}
</div>
#php
$i++;
#endphp
#endif
</div>{{--END steps-item--}}
#endforeach

Since blade is no PHP, you have to return to PHP with that directive. But you can set/use the variables without doing that in your case:
#foreach($steps as $i => $row)
<div class="steps-item grid-wrap">
<div class="number"
#if($text || $title)
<div class="text-wrap">
#if($title)
<h2>{{ $row->title }}</h2>
#endif
{!! $row->text !!}
</div>
#php
$i++;
#endphp
#endif
</div>{{--END steps-item--}}
#endforeach
If you still want to set variables, there's a Laravel package called alexdover/blade-set. But as #brombeer pointed out, in most cases it's highly recommended to set all necessary variables in the controller before passing them to the view.

Use laravel provided loop variables:
$loop->iteration The current loop iteration (starts at 1).
It will increment in every loop iteration automatically.
e.g:
First iteration = $loop->iteration => 1 ;
Second iteration = $loop->iteration => 2 ;
so on until loop ends.
Check docs:
The Loop Variables

You can use a #for directive with sizeof($steps) like that:
#for($i=0; $i<= sizeof($steps)-1; $i++)
#endfor

#foreach ($steps as $row)
<div class="steps-item grid-wrap">
<div class="number">
<div class="text-wrap">
#if ($row->title != '')
<h2>{{$row->title}}</h2>
/* if you want to display another title when its blank you can
use if-else here otherwise not need to use if conditions for
title and text */
#endif
#if ($row->text != '')
{!! $row->text !!}
#endif
</div>
</div>
</div>
#endforeach
{{--
for an example you have $steps values like
$steps =
Array(
[0] -> 1,
[1] -> 'title',
[2] -> 'text'
);
if you want this array key value pair you have to use #foreach like
#foreach ($steps as $key=>$value)
#endforeach
you can use key value in #foreach loop only
--}}

How to figure the question into 100 in relationship in laravel

I have two models 1. Subject 2. Question and it has One to many relation. And a student can choose many subjects he want. And now I want to take a test through the subjects. And the test should be 100 marks test.Now i need a way how to accomplish the 100 marks test. Suppose a student choose 3 subjects and if we divide 3 form 100 then it will be 33 (floor) or 34 (ceil) per subject but i want to round it to 100, how i accomplish this. Here is my code for getting the questionsn
foreach ($student->departments as $key => $department){
$majorSubjects[] =$department->subject_id;
}
$no_of_questions =100;
$uniqueSubjects=array_unique($majorSubjects);
$div = ceil($no_of_questions/count($uniqueSubjects));
$mul = $div*count($uniqueSubjects);
$subjects=Subject::whereIn('id',$majorSubjects)->get();
}
and in my blade
#foreach($subjects as $key => $subject)
<li class=" {{$key == 0 ? 'active' : ''}}">{{$subject->name}}</li>
#endforeach
</ul>
<div class="tab-content">
#if(!empty($subjects))
#foreach($subjects as $key => $subject)
<div class="tab-pane {{$key == 0 ? 'active' : ''}}" id="tab_{{ $subject->id }}">
#foreach($subject->questions->random($div) as $num => $question)
<form></form>
#endforeach

You can use modulus to get the remaining mark test.
$additional_mark_test = $no_of_questions % count($uniqueSubjects);
Put it in here.
foreach ($student->departments as $key => $department){
$majorSubjects[] =$department->subject_id;
}
$no_of_questions =100;
$uniqueSubjects=array_unique($majorSubjects);
$div = ceil($no_of_questions/count($uniqueSubjects));
$mul = $div*count($uniqueSubjects);
// Get the remaining test
$additional_mark_test = $no_of_questions % count($uniqueSubjects);
$subjects=Subject::whereIn('id',$majorSubjects)->get();
}
In your blade, this will check first if $additional_mark_test is empty.
#if(!empty($additional_mark_test))
#foreach($subject->questions->random($additional_mark_test) as $num => $question)
<form></form>
#endforeach
#php $additional_mark_test = 0; #endphp
#endif
Put it in here.
#foreach($subjects as $key => $subject)
<li class=" {{$key == 0 ? 'active' : ''}}">{{$subject->name}}</li>
#endforeach
</ul>
<div class="tab-content">
#if(!empty($subjects))
#foreach($subjects as $key => $subject)
<div class="tab-pane {{$key == 0 ? 'active' : ''}}" id="tab_{{ $subject->id }}">
#foreach($subject->questions->random($div) as $num => $question)
<form></form>
#endforeach
<!--Additional Mark Test(This will be add to first subject)-->
#if(!empty($additional_mark_test))
#foreach($subject->questions->random($additional_mark_test) as $num => $question)
<form></form>
#endforeach
#php $additional_mark_test = 0; #endphp
#endif

Laravel - Collections. How to separate array into 2 groups

I have created 2 collections(arrays) which each contain an array of 5 items/events.
$events = App\get_event_data( $args )
$collection = collect($events['events']);
$event_chunks = $collection->chunk(5);
$event_chunks->toArray();
#foreach ($event_chunks as $chunk)
Output of the above:
object(Illuminate\Support\Collection)[27632]
protected 'items' =>
array (size=2)
0 =>
object(Illuminate\Support\Collection)[27630]
protected 'items' =>
array (size=5)
...
1 =>
object(Illuminate\Support\Collection)[27631]
protected 'items' =>
array (size=5)
...
In my next loop, it simply goes through every item of the array 1 by 1.
I need to split the 5 items into a further 2 groups:
group of 2
group of 3
so I can wrap a div around each group.
Current loop:
#foreach ($chunk as $key => $event)
<div class="item">
{{ $event['title'] }}
</div>
#endforeach
What I need:
<div class="item-group">
[item1, item2]
</div>
<div class="item-group">
[item3, item4, item5]
</div>
Full code:
{{-- Get all events --}}
#if( $events = App\get_event_data( $args ) )
#php
$collection = collect($events['events']);
$event_chunks = $collection->chunk(5);
$event_chunks->toArray();
#endphp
#foreach ($event_chunks as $chunk)
<div class="{{ $block }}__flex-grid">
#foreach ($chunk as $key => $event)
<div class="item">
{{ $event['title'] }}
</div>
#endforeach
</div>
#endforeach
#endif

Assuming that you will allways have 5 items, a solution could be:
<div class="item-group">
#foreach (array_slice($chunk->toArray(),0,2) as $key => $event)
<div class="item">
{{ $event['title'] }}
</div>
#endforeach
</div>
<div class="item-group">
#foreach (array_slice($chunk->toArray(),2) as $key => $event)
<div class="item">
{{ $event['title'] }}
</div>
#endforeach
</div>
Or if want to avoid code duplication:
#php $chunk = [array_slice($chunk->toArray(),0,2), array_slice($chunk,2)];
#foreach ($chunk as $group)
<div class="item-group">
#foreach ($group as $key => $event)
<div class="item">
{{ $event['title'] }}
</div>
#endforeach
</div>
#endforeach
If you don't know or not sure that you have 5, you may need to change the logic of the chunks/slice.

It's maybe too late to answer, but I've made a function to split arrays into as groups as you like.
function SplitInto($array, $groups = 2)
{
$members = count($array) / $groups;
if (count($array) % $groups) $members = (int)(count($array) / $groups) + 1;
return array_chunk($array, $members);
}

Is it possible to have 3 div elements and have your loop fill them in order?

Usually when I loop through a database table records, I put them in 1 div, however, I have been wondering whether it is possible to create 3 divs and then put one record in each div, then start from the first div again and rinse and repeat.
Example of how I've done it so far:
<div class="container">
#foreach($albumImages as $albumImage)
<div class="centeredImage stickyContainer" style="background-image: url('/storage/uploads/albums/{{$albumName}}/{{$albumImage->file_name}}')">
<a class='specialA' href=''></a>
</div>
#endforeach
</div>
As you can see in this case, all the records are in the container div.
Example of what I've been thinking about:
<div class="flex-grid">
<div class="col-l"></div>
<div class="col-c"></div>
<div class="col-r"></div>
</div>
and have the first record go in col-l, the second in col-c, the third in col-r and then start from col-l again.

Try this
<div class="flex-grid">
#php($count = 0)
#foreach($albumImages as $albumImage)
#if ($count % 3 == 0)
<div class="col-l"></div>
#elseif($count % 3 == 1)
<div class="col-c"></div>
#else
<div class="col-r"></div>
#endif
#php($count++)
#endforeach
</div>
You can use this code but I later will update my answer with more good solution
#php($count = 0)
#foreach($albumImages as $albumImage)
#if ($count % 3 == 0)
#php($albumImages1[] = $albumImage)
#elseif($count % 3 == 1)
#php($albumImages2[] = $albumImage)
#else
#php($albumImages3[] = $albumImage)
#endif
#php($count++)
#endforeach
#if (!empty($albumImages1))
#foreach($albumImages1 as $albumImage)
// your logic here
#endforeach
#endif
#if (!empty($albumImages2))
#foreach($albumImages2 as $albumImage)
// your logic here
#endforeach
#endif
#if (!empty($albumImages3))
#foreach($albumImages3 as $albumImage)
// your logic here
#endforeach
#endif
Also you can split three part your initial array make global helper functions.
define global function
function split_sequence_by_count ($array, $count) {
$result = [];
for ($i = 0; $i < $count; $i++) {
$result[$i] = [];
}
$_count = 0;
foreach ($array as $current) {
$index = $_count % 3;
$result[$index][] = $current;
$_count++;
}
return $result;
}
usage in blade
#php(list ($albumImages1, $albumImages2, $albumImages3) = split_sequence_by_count($albumImages, 3))
#foreach($albumImages1 as $albumImage)
// your logic here
#endforeach
#foreach($albumImages2 as $albumImage)
// your logic here
#endforeach
#foreach($albumImages3 as $albumImage)
// your logic here
#endforeach

Another way would be array_chunk then just run through the array with 2 nested loops. Should be self-explaining.

<?php
$people =
[
'John',
'Paul',
'Ringo',
'George'
];
$i=0;
$classes = ['col-a','col-b','col-c'];
foreach($people as $name) {
$class = $classes[$i++%3];
?>
<div class='<?=$class?>'>
<?=$name?>
</div>
<?php
}
Formatted output:
<div class='col-a'>
John
</div>
<div class='col-b'>
Paul
</div>
<div class='col-c'>
Ringo
</div>
<div class='col-a'>
George
</div>
Regarding placing each name in each column (as per your comment), we could wrangle the array format:
$classes = ['col-a','col-b','col-c'];
$i=0;
foreach($people as $name)
$columns[$classes[$i++%3]][] = $name;
?>
<?php foreach($columns as $class=>$column) { ?>
<div class='<?=$class?>'>
<?php foreach($column as $name) { ?>
<div class="name">
<?=$name?>
</div>
<?php } ?>
</div>
<?php } ?>
Formatted output:
<div class='col-a'>
<div class="name">
John
</div>
<div class="name">
George
</div>
</div>
<div class='col-b'>
<div class="name">
Paul
</div>
</div>
<div class='col-c'>
<div class="name">
Ringo
</div>
</div>

Laravel 5 after 3 posts show an add

Hello guys i have declared my posts with variable $lastItems
#if($lastItems->total() > 0)
#foreach($lastItems as $item)
#include('._posting.items')
#endforeach
#else
#include('errors.emptycontent')
#endif
and i want to add ads after each 3 post, i use something like this
#if($lastItems->total() > 0)
#foreach($lastItems as $item)
#include('._posting.items')
#endforeach
#if($item = 3)
<img src="link" alt="ads">
#endif
#else
#include('errors.emptycontent')
#endif
but the problem is, when i try like this it shows the ads after every post not after 3 posts.
What i'm doing wrong?

You may try something like:
#if($lastItems->total() > 0)
#foreach($lastItems as $key => $item)
#include('._posting.items')
#if (($key + 1) % 3 == 0)
<img src="link" alt="ads">
#endif
#endforeach
#else
#include('errors.emptycontent')
#endif

I had almost same problem, in my case I had to change div's class. So I used sth like this and it helped me:
<?php $var = -1; ?>
#foreach($lastItems as $item)
<?php $var ++;?>
#if($var%3 == 0 && $var!=0)
#include('errors.emptycontent')
else
#include('._posting.items')
#endif
#endforeach
I hope it helps :)

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