The following PHP file upload script makes the filename server-friendly, checks for filesize limitations, makes the filename unique so it doesn’t overwrite existing files (while using a sane naming scheme rather than simply using random generation & hoping for the best, lol), and outputs the final filename\/location when finished.<\/p>\n
$file_i = 1; \/\/ Prep the number that'll be appended when there's an existing file <\/code><\/p>\n Hopefully somebody out there finds this useful. I provided more than what’s necessary for simply preventing uploads from being overwritten, but you can take the parts that you need and possibly take some stuff that you find useful.<\/p>\n","protected":false},"excerpt":{"rendered":" The following PHP file upload script makes the filename server-friendly, checks for filesize limitations, makes the filename unique so it doesn’t overwrite existing files (while using a sane naming scheme rather than simply using random generation & hoping for the best, lol), and outputs the final filename\/location when finished. $file = basename($_FILES[‘file’][‘name’]); \/\/ Get the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"episode_type":"","audio_file":"","podmotor_file_id":"","podmotor_episode_id":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-124","post","type-post","status-publish","format-standard","hentry","category-news"],"yoast_head":"\n $file = basename($_FILES['file']['name']); \/\/ Get the uploaded file's filename (input's name being set to \"file\")
\n$file = utf8_decode($file); \/\/ Convert to utf8
\n$file = strtr($file, utf8_decode(\"\\'\u00c0\u00c1\u00c2\u00c3\u00c4\u00c5\u00c7\u00c8\u00c9\u00ca\u00cb\u00cc\u00cd\u00ce\u00cf\u00d2\u00d3\u00d4\u00d5\u00d6\u00d9\u00da\u00db\u00dc\u00dd\u00d1\u00f1\u00e0\u00e1\u00e2\u00e3\u00e4\u00e5\u00e7\u00e8\u00e9\u00ea\u00eb\u00ec\u00ed\u00ee\u00ef\u00f0\u00f2\u00f3\u00f4\u00f5\u00f6\u00f9\u00fa\u00fb\u00fc\u00fd\u00ff\"), \"--AAAAAACEEEEIIIIOOOOOUUUUYNnaaaaaaceeeeiiiioooooouuuuyy\"); \/\/ Replace special characters
\n$file = preg_replace('\/( +)\/i', '_', $file); \/\/ Replace spaces
\n$file = strtolower($file); \/\/ Make lowercase
\n$original_file = $file; \/\/ Save this as a reference<\/code><\/p>\n$size = $_FILES['file']['size']; \/\/ Get filesize
\nif($size>52428800){ \/\/ Check if filesize is greater than a specified amount
\necho \"error file size > 50 MB\"; \/\/ Output error message
\nunlink($_FILES['file']['tmp_name']); \/\/ Clean up upload
\nexit; \/\/ Don't bother to run any more code
\n}<\/p>\n
\nfunction prevent_overwrite(){
\nglobal $file_i,$file,$original_file; \/\/ Pull in our external variables
\nif(file_exists($file)){ \/\/ Check for existing file
\n$parts = explode('.',$file); \/\/ Blow apart
\n$parts[0] = $parts[0].$file_i; \/\/ Add incremental number after filename
\n$file = $parts[0].'.'.$parts[1]; \/\/ Join filename & extension back together
\nif(file_exists($file)){ \/\/ If it still has an existing counterpart
\n$file_i++; \/\/ Increase the number
\n$file = $original_file; \/\/ Revert back to the filename w\/o the number (so they don't stack up so it ends up being \"filename6.jpg\" instead of \"filename123456.jpg\")
\nprevent_overwrite(); \/\/ Run it again
\n}
\n}
\n}
\nprevent_overwrite(); \/\/ Run this to prep to filename to account for the files already on the server<\/p>\nif(move_uploaded_file($_FILES['file']['tmp_name'], $file)){ \/\/ Try to upload the file
\necho $file; \/\/ If successful, output the file's final location & filename
\n}else{
\necho \"error \".$_FILES['file']['error'].\" --- \".$_FILES['file']['tmp_name'].\" %%% \".$file.\"($_FILES['file']['size'])\"; \/\/ Provide an error message
\n}
\n<\/code><\/p>\n