note 126149 added to reserved.variables.files

The attached "new FILES_flattened" class flattens the $_FILES array, for any combination of "single" files, multi-file arrays with given indices [i] or multi-file array with [] indices, even multi-level multi-file arrays [i][j]...[n]. An additional element "pos" in the flattened array will hold the "node path" for each file of a multi-file array, e.g. 'pos' => [ i, j ], so that it can be used for proper disposition of the file in database array, or for creating automated names that append each index level. Most importantly, the HTML input "name" property and all other information remains fully intact. HTML <form> snippet: <input type="hidden" name="MAX_FILE_SIZE" value="2500000" title="Permitted bytes per file." /> <input type="file" name="pictures[4]" accept="image/*"/> <input type="file" name="thumb" accept="image/*" /> <input type="file" name="pictures[]" accept="image/*" /> <input type="file" name="pictures[10][5]" accept="image/*" /> <input type="file" name="pictures[17]" accept="image/*" /> Result : A flat array, one element per <input> field, each will have this structure: ... 'pictures' => array (size=6) 'name' => 'ClientFilename.jpg' 'type' => 'image/jpeg' ( 'tmp_name' => '...\php8D2C.tmp' 'error' => 0 'size' => 1274994 'pos' => array (size=2) 0 => 10 1 => 5 ... with nothing more than a simple foreach: <?php foreach( new RecursiveIteratorIterator( new FILES_flattened ) as $key => $data ) { var_dump( $key, $data ); // Here's how to use the "pos" element, to generate an automated name // that incorporates the "node path", e.g. "picture[10][5]" echo $key.( empty( $data[ 'pos' ] ) ? '' : '['. implode( '][', $data[ 'pos' ] ) . ']' ); } ---- Server IP: 45.112.84.4 Probable Submitter: 45.112.85.242 (proxied: 206.128.157.247) ---- Manual Page -- https://php.net/manual/en/reserved.variables.files.php Edit -- https://main.php.net/note/edit/126149 Del: integrated -- https://main.php.net/note/delete/126149/integrated Del: useless -- https://main.php.net/note/delete/126149/useless Del: bad code -- https://main.php.net/note/delete/126149/bad+code Del: spam -- https://main.php.net/note/delete/126149/spam Del: non-english -- https://main.php.net/note/delete/126149/non-english Del: in docs -- https://main.php.net/note/delete/126149/in+docs Del: other reasons-- https://main.php.net/note/delete/126149 Reject -- https://main.php.net/note/reject/126149 Search -- https://main.php.net/manage/user-notes.php