php - Handling files for multiple users at once (logistic prob) -

php - Handling files for multiple users at once (logistic prob) -

hey app creates files on server shown users right away in html element called iframe. far have been storing files same folder, overwriting old ones each time user requested new one. problem if more 1 user tried generate file @ once, 1 of them might not right file, or no file @ all. guess should create random temp folder each generation of files. work, server might filled in 100 generations of files. need delete random temp folder 1 time user done loading file in iframe, how phone call php function on load? other alternative method/idea, help me alot. how others handle such problems?

i create 1 single temp folder, , generate random file names (md5, guid, don't matter). same script generate file on folder visualization, before generation itself, should check files on folder, excluding files generated >= 1 day ago. check filemtime function , this question if have doubts how file creation/modification date.

php html pdf iframe user