php替换特定字符的最后一个字符

Question

I have an array and I want to generate a message out of them. If I use join(', ', $response), I get file1.jpg, file2.jpg, file3.jpg. Is it possible to replace the last comma so the message would be file1.jpg, file2.jpg AND file3.jpg?

Answer 1

This should work;

<?php 

$response=['file1.jpg','file2.jpg','file3.jpg'];

$response=array_reverse($response);

$arr=$response[1].' AND ' .$response[0];
for ($i=2; $i < count($response); $i++) { 
    $new[]=$response[$i];
}
array_push($new, $arr);

echo join(", ",$new);