loop through associative array key

Question

I want to loop through an associate array.

foreach($details as $key=>$value){
echo  $details['image1'];
}

Above code works fine.

What i want if i can replace the 1 in $details['image1'] to 2,3,4 ..etc what i tried

$j=i;
foreach($details as $key=>$value){
echo  $details['image.$j'];
$j++;
}

But it does not work. It there a way to dynamically change the key of associate array. like

'$details['image2'];
$details['image3'];'

I don't know how you create `$details` array, but you probably want to make an array of images instead of this mess. `$details = ['images' => ['image1', 'image2', ...]];` — HTMHell, Aug 09 '19 at 12:14
I'm not sure I understand the point of iterating over the keys of an array if the foreach body recreates different keys anyways. It almost looks like what you want to do is `foreach($details as $key=>$value) { echo $value; }`. Am I missing something? — SirDarius, Aug 09 '19 at 12:17
The actual code is some thing like this ` ` I have to dynamicaly load database pictures and show it in slider. — Waqas Kanju, Aug 09 '19 at 12:21

score 0 · Answer 1 · answered Aug 09 '19 at 12:12

0

You should use double quote mark

$j=i;
foreach($details as $key=>$value){
   echo  $details["image{$j}"];
   $j++;
}

answered Aug 09 '19 at 12:12

Maksym Fedorov

score 0 · Answer 2 · answered Aug 09 '19 at 12:16

0

This is one way to do it

$j = $i;
$newArray = [];
foreach ($details as $key => $value) {
    $newArray['image'. $j] = $value;
    $j++;
 }

answered Aug 09 '19 at 12:16

failedCoder

score 0 · Answer 3 · answered Aug 09 '19 at 12:21

In echo $details['image.$j']; $j is inserted as a literal.

You can either use

to correctly concat.

Although you actually do not need a foreach loop using this syntax. A simple for-loop would be sufficient.

for ($i = 0; $i < count($details); $i++)
{
  echo  $details["image.{$i}"];
}

Using foreach you probably do not need to count up $i ... but that depends on your array.

3 Answers3