php array_walk function calling multiple functions randomly in a loop - php

Question

I am using array_walk in a script where I can call one specific function; now, I would like to call a function randomly from a pool of similar functions and manipulate the array values. It could be a loop construct. To be more specific, they are all image functions, generating images dynamically. Another requirement is that I need to save images in a particular order in a folder such as 001.jpg, 002.jpg, 003.jpg and so on. Currently, I am saving images using the code imagejpeg($im, "savedimages/" . time() . "-" . rand() . ".jpg", 90); As I call a function randomly, is it possible to maintain a similar order in saving images. I need an idea how to do that.
$fontFace = 'AmsiPro-Ultra.ttf';
$sentences = preg_split('/(?<=[.?!])\s+(?=[a-z])/i', $html);
array_walk($sentences, 'dynamicImage', $fontFace);
function dynamicImage($sentence, $key, $fontFace)
{
$img = 'green.jpg';
$client = new Client;
$image = $client->loadJpeg($img);
$palette = $image->extract();
imagickResize($img);
// create a transparent base image that we will merge the square image into.
$img = new Img();
$img->create(640, 720, true);
// first image; merge with base.
$img2 = new Img('small_square_img.jpg');
$img->merge($img2);
$img->save();
$color = 'D2F57D';
pngcolorizealpha('second_img.png', $color);
stringFunction($sentence, $palette[0], $fontFace);
$im = mergeImages(array(
'first.image.jpg',
'second.image.jpg'
));
# header('Content-type: image/jpg');
imagejpeg($im, "savedimages/" . time() . "-" . rand() . ".jpg", 90);
}

Answer 1

something like this
$func_1 = function(){
echo '1';
};
$func_2 = function(){
echo '2';
};
$functions = array(
$func_1,
$func_2,
..
);
array_shuffle( $functions );
$functions[1]( );
or
foreach( $functions as $index => $function ){
$function();
}
On the last one array_shuffle, if I remember right will reset the keys, if not you can do array_values($functions ) to reset them. Also note I've not tested this, but essentially that should work.