如何比较数组中的文件扩展名并抛出错误？

Question

I've following array of file extensions titled $aSupportedImages:

Array
(
    [0] => jpeg
    [1] => jpg
    [2] => gif
    [3] => png
)

I've another array titled $values as follows :

Array
(
    [vshare] => Array
        (
            [course_error.png] => Array
                (
                    [0] => https://www.filepicker.io/api/file/Y0n99udSqS6ZJWYeYcUA
                )

            [before_login.png] => Array
                (
                    [0] => https://www.filepicker.io/api/file/19FWbHh1QNGCo2OINxI6
                )

            [Sample_1.docx] => Array
                (
                    [0] => https://www.filepicker.io/api/file/INjMeEhCSjpZSfZJmQUb
                )

        )

)

Now you can see that each key in an array [vshare] is a file name. I want to check the extension of each of such file with the extensions present in an array $aSupportedImages. If any of the files have different extension than those present in the array $aSupportedImage the loop should get break and it should return false.

In above case for third file it should return false. As .docx is not present in an array $aSupportedImages

How should I do this? Please help me.

Answer 1

This should break if there's a file with unsupported extension

foreach($values['vshare'] as $file)
{
    if(!in_array(pathinfo($file, PATHINFO_EXTENSION), $aSupportedImages))
        break;
}