Laravel - 在阵列上循环

Question

I have statement like this :

result:
0:{
    commentContent:"foo"
}
1:{
    commentContent:"bar"
}

I want to add number of result array to commentContent. Here is what I want :

result:
0:{
    commentContent:"foo0"
}
1:{
    commentContent:"bar1"
}

At this moment, here is I have : (Literally it's not correct)

$commentList[0]['commentContent'] = $commentList[0]['commentContent']+'0';
$commentList[1]['commentContent'] = $commentList[1]['commentContent']+'1';

How to do this in Laravel controller with foreach?

Answer 1

You need to use .(dot) in php to concatenate:

$commentList[0]['commentContent'] = $commentList[0]['commentContent'].'0';
$commentList[1]['commentContent'] = $commentList[1]['commentContent'].'1';

OR

$commentList[0]['commentContent'] .= '0';
$commentList[1]['commentContent'] .= '1';

Using foreach loop:

foreach ($comment_list as $key=>$val) {
    $comment_list[$key]['commentContent'] = $val['commentContent'] . $key;
}