循环关联数组键[重复]

Question

This question already has an answer here:

• What is the difference between single-quoted and double-quoted strings in PHP? 10 answers

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'];'

</div>

Answer 1

You should use double quote mark

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