使用PHP在我的个人云上删除图像

Question

I'm working at a personal cloud where my gf can store her photos because her iCloud is full.

Basically, this is what is making everything works:

<?php
$dirname = "uploads/";
$images = glob($dirname."*.{jpg,,jpeg,png,gif,JPG,JPEG,PNG,GIF}", GLOB_BRACE);

usort($images, create_function('$b,$a', 'return filemtime($a) - filemtime($b);'));
foreach($images as $image) {

echo '
 <a href="'.$image.'">
 <img class="img-grid" src="'.$image.'" />
 </a>';
}

?>

And it looks like this.

It's working perfectly but she needs a tool for deleting already uploaded images. Assuming she is only using this site at her smartphone, i've planned 3 ways of doing this although I dont know how to do it.

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1st: A "X" at every image for deleting

PROS: Easy for her // CONS: Touchscreen miss click

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2nd: A table with all images retrieved from dir and 'delete' button

PROS: Probably the easiest for programming? // CONS: Ugly

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3rd: An "image preview" with delete button when clicking

PROS: Beauty and useful // CONS: Probably weird for mobile

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So, which one of the 3 can be a good solution for her and how to do it?

Thanks in advance!

Edit2: inserting "how to do it" Edit3: sorry bad english, 'm from BR land

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