Delete Slack files older than 30 days that are not pinned. Rewrite of https://gist.github.com/jackcarter/d86808449f0d95060a40 . get your slack token here: https://api.slack.com/web

slack_delete.php

<?php

$token = '<YOUR TOKEN GOES HERE>';

#Delete files older than this:
$ts_to = time()-(30*24*3600);
function list_files($token, $ts_to){
	$params	 = [
		'token'	 => $token,
		'ts_to'	 => $ts_to,
		'count'	 => 1000,
	];
	$uri	 = 'https://slack.com/api/files.list';
	$uri .= '?'.http_build_query($params);
	$tmp	 = file_get_contents($uri);
	return json_decode($tmp, true)['files'];
}
function delete_files($token, $files){
	$count		 = 0;
	$num_files	 = count($files);
	foreach($files as $file){
		$file_id	 = $file['id'];
		$pinned_to	 = isset($file['pinned_to'])?$file['pinned_to']:[];
		if(count($pinned_to)>0){
			echo $count.' of '.$num_files." - ".$file_id." not deleted: pinned\n";
		}else{
			$count ++;
			$params	 = [
				'token'	 => $token,
				'file'	 => $file_id
			];
			$uri	 = 'https://slack.com/api/files.delete';
			$uri .= '?'.http_build_query($params);
			$tmp	 = file_get_contents($uri);
			echo $count.' of '.$num_files." - ".$file_id.' '.json_decode($tmp, true)['ok']."\n";
		}
	}
}
$files = list_files($token, $ts_to);
delete_files($token, $files);