Codeigniter multi-file upload example. This article describes how to use codeigniter to upload multiple files. For more information, see the following code :? Phpif (! Defined (BASEPATH) {exit (Nodirectscriptaccessallowed);} This article describes how to use codeigniter to upload multiple files. For more information, see
The code is as follows: 0, "max_width" => 0, "max_height" => 0, "max_filename" => 0, "allowed_types" => "", "file_temp" => "", "file_name" => "", "orig_name" => "", "file_type" => "", "file_size" => "", "file_ext" => "", "upload_path" => "", "overwrite" => FALSE, "encrypt_name" => FALSE, "is_image" => FALSE, "image_width" => "", "image_height" => "", "image_type" => "", "image_size_str" => "", "error_msg" => array (), "mim Es "=> array ()," remove_spaces "=> TRUE," xss_clean "=> FALSE," temp_prefix "=>" temp_file _", "client_name" => ""); // Set each configuration. foreach ($ defaults as $ key => $ val) {if (isset ($ config [$ key]) {$ method = "set _ {$ key }"; if (method_exists ($ this, $ method) {$ this-> $ method ($ config [$ key]);} else {$ this-> $ key = $ config [$ key] ;}} else {$ this-> $ key = $ val ;}// Check if file_name was provide D. if (! Empty ($ this-> file_name) {// Multiple file upload. if (is_array ($ this-> file_name) {// Clear file name override. $ this-> _ file_name_override = ""; // Set multiple file name override. $ this-> _ multi_file_name_override = $ this-> file_name; // Single file upload .} else {// Set file name override. $ this-> _ file_name_override = $ this-> file_name; // Clear multiple file name override. $ this-> _ multi_file_name_overr Ide = "" ;}}/ *** File MIME Type ** Detects the (actual) MIME type of the uploaded file, if possible. * The input array is expected to be $ _ FILES [$ field]. ** In the case of multiple uploads, a optional second argument may be * passed specifying which array element of the $ _ FILES [$ field] array * elements shocould be referenced (name, type, tmp_name, etc ). ** @ access protected * @ param $ file ar Ray * @ param $ count int * @ return void */protected function _ file_mime_type ($ file, $ count = 0) {// Mutliple file? If (is_array ($ file ["name"]) {$ tmp_name = $ file ["tmp_name"] [$ count]; $ type = $ file ["type"] [$ count]; // Single file .} else {$ tmp_name = $ file ["tmp_name"]; $ type = $ file ["type"];} // We'll need this to validate the MIME info string (e.g. text/plain; charset = us-ascii ). $ regexp = "/^ ([a-z \-] + \/[a-z0-9 \-\. \ +] +) (; \ s. + )? $/";/* Fileinfo Extension-most reliable method. ** Unfortunately, prior to PHP 5.3-it's only available as a PECL extension and the * more convenient FILEINFO_MIME_TYPE flag doesn't exist. */if (function_exists ("finfo_file") {$ finfo = finfo_open (FILEINFO_MIME); if (is_resource ($ finfo) {$ mime = @ finfo_file ($ finfo, $ tmp_name); finfo_close ($ finfo);/* According to the comments section of the PHP manual page, * it is possible that this function returns an empty string * for some files (e.g. if they don't exist in the magic MIME database ). */if (is_string ($ mime) & preg_match ($ regexp, $ mime, $ matches) {$ this-> file_type = $ matches [1]; return ;}}/* This is an Uugly hack, but UNIX-type systems provide a "native" way to detect the file type, * which is still more secure than depending on the value of $ _ FILES [$ field] ['type'], and as it * was reported in issue #750 ( https://github.com/EllisLab/CodeIgniter/issues/750 )-It's better * than mime_content_type () as well, hence the attempts to try calling the command line with * three different functions. ** Notes: *-the DIRECTORY_SEPARATOR comparison ensures that we're not on a Windows system *-using system admins wocould disable the exec (), shell_exec (), popen () and similar functions * due to security concerns, hence the function_exists () checks */if (DIRECTORY _ SEPARATOR! = "\") {$ Cmd = "file -- brief -- mime ". escapeshellarg ($ tmp_name ). "2> & 1"; if (function_exists ("exec") {/* This might look confusing, as $ mime is being populated with all of the output when set in the second parameter. * However, we only neeed the last line, which is the actual return value of exec (), and as such-it overwrites * anything that cocould already be set for $ mime previusly. this effect Ively makes the second parameter a dummy * value, which is only put to allow us to get the return status code. */$ mime = @ exec ($ cmd, $ mime, $ return_status); if ($ return_status = 0 & is_string ($ mime) & preg_match ($ regexp, $ mime, $ matches) {$ this-> file_type = $ matches [1]; return ;}} if (bool) @ ini_get ("safe_mode ") === FALSE & function_exists ("shell_exec") {$ mime = @ shell_exec ($ cmd); if (strl En ($ mime)> 0) {$ mime = explode ("\ n", trim ($ mime); if (preg_match ($ regexp, $ mime [(count ($ mime)-1)], $ matches) {$ this-> file_type = $ matches [1]; return ;}}} if (function_exists ("popen") {$ proc = @ popen ($ cmd, "r"); if (is_resource ($ proc )) {$ mime = @ fread ($ proc, 512); @ pclose ($ proc); if ($ mime! = FALSE) {$ mime = explode ("\ n", trim ($ mime); if (preg_match ($ regexp, $ mime [(count ($ mime) -1)], $ matches) {$ this-> file_type = $ matches [1]; return ;}}// Fall back to the deprecated mime_content_type (), if available (still better than $ _ FILES [$ field] ["type"]) if (function_exists ("mime_content_type ")) {$ this-> file_type = @ mime_content_type ($ tmp_name); // It's possible that mime_content_type () ret Urns FALSE or an empty string. if (strlen ($ this-> file_type)> 0) {return ;}// If all else fails, use $ _ FILES default mime type. $ this-> file_type = $ type;}/*** Set Multiple Upload Data ** @ access protected * @ return void */protected function set_multi_upload_data () {$ this-> _ multi_upload_data [] = array ("file_name" => $ this-> file_name, "file_type" => $ this-> file_type, "file_path" => $ this-> upl Oad_path, "full_path" => $ this-> upload_path. $ this-> file_name, "raw_name" => str_replace ($ this-> file_ext, "", $ this-> file_name), "orig_name" => $ this-> orig_name, "client_name" => $ this-> client_name, "file_ext" => $ this-> file_ext, "file_size" => $ this-> file_size, "is_image" => $ this-> is_image (), "image_width" => $ this-> image_width, "image_height" => $ this-> image_height, "image_type" => $ this-> image _ Type, "image_size_str" => $ this-> image_size_str);}/*** Get Multiple Upload Data ** @ access public * @ return array */public function get_multi_upload_data () {return $ this-> _ multi_upload_data;}/*** Multile File Upload ** @ access public * @ param string * @ return mixed */public function do_multi_upload ($ field) {// Is $ _ FILES [$ field] set? If not, no reason to continue. if (! Isset ($ _ FILES [$ field]) {return false;} // Is this really a multi upload? If (! Is_array ($ _ FILES [$ field] ["name"]) {// Fallback to do_upload method. return $ this-> do_upload ($ field);} // Is the upload path valid? If (! $ This-> validate_upload_path () {// Errors will already be set by validate_upload_path () so just return FALSE ;} // Every file will have a separate entry in each of the $ _ FILES associative array elements (name, type, etc ). // Loop through $ _ FILES [$ field] ["name"] as representative of total number of files. use count as key in // corresponding elements of the $ _ FILES [$ field] elements. for ($ I = 0; $ I Set_error ("upload_file_exceeds_limit"); break; // UPLOAD_ERR_FORM_SIZE case 2: $ this-> set_error ("failed"); break; // UPLOAD_ERR_PARTIAL case 3: $ this-> set_error ("upload_file_partial"); break; // UPLOAD_ERR_NO_FILE case 4: $ this-> set_error ("upload_no_file_selected"); break; // Upload case 6: $ this-> set_error ("upload_no_temp_directory"); break; // UPLOAD_ERR_CANT_WRI TE case 7: $ this-> set_error ("upload_unable_to_write_file"); break; // UPLOAD_ERR_EXTENSION case 8: $ this-> set_error ("upload_stopped_by_extension"); break; default: $ this-> set_error ("upload_no_file_selected"); break;} // Return failed upload. return FALSE;} // Set current file data as class variables. $ this-> file_temp = $ _ FILES [$ field] ["tmp_name"] [$ I]; $ this-> file_size = $ _ FILES [$ field] ["size"] [$ I]; $ This-> _ file_mime_type ($ _ FILES [$ field], $ I); $ this-> file_type = preg_replace ("/^ (. + ?);. * $/"," \ 1 ", $ this-> file_type); $ this-> file_type = strtolower (trim (stripslashes ($ this-> file_type ), '"'); $ this-> file_name = $ this-> _ prep_filename ($ _ FILES [$ field] [" name "] [$ I]); $ this-> file_ext = $ this-> get_extension ($ this-> file_name); $ this-> client_name = $ this-> file_name; // Is the file type allowed to be uploaded? If (! $ This-> is_allowed_filetype () {$ this-> set_error ("upload_invalid_filetype"); return FALSE;} // If we're re overriding, let's now make sure the new name and type is allowed. // Check if a filename was supplied for the current file. otherwise, use it's given name. if (! Empty ($ this-> _ multi_file_name_override [$ I]) {$ this-> file_name = $ this-> _ prep_filename ($ this-> _ multi_file_name_override [$ I]); // If no extension was provided in the file_name config item, use the uploaded one. if (strpos ($ this-> _ multi_file_name_override [$ I], ". ") === FALSE) {$ this-> file_name. = $ this-> file_ext; // An extension was provided, lets have it!} Else {$ this-> file_ext = $ this-> get_extension ($ this-> _ multi_file_name_override [$ I]);} if (! $ This-> is_allowed_filetype (TRUE) {$ this-> set_error ("upload_invalid_filetype"); return FALSE ;}// Convert the file size to kilobytes. if ($ this-> file_size> 0) {$ this-> file_size = round ($ this-> file_size/1024, 2 );} // Is the file size within the allowed maximum? If (! $ This-> is_allowed_filesize () {$ this-> set_error ("upload_invalid_filesize"); return FALSE;} // Are the image dimensions within the allowed size? // Note: This can fail if the server has an open_basdir restriction. if (! $ This-> is_allowed_dimensions () {$ this-> set_error ("upload_invalid_dimensions"); return FALSE;} // Sanitize the file name for security. $ this-> file_name = $ this-> clean_file_name ($ this-> file_name ); // Truncate the file name if it's too long if ($ this-> max_filename> 0) {$ this-> file_name = $ this-> limit_filename_length ($ this-> file_name, $ this-> max_filename );} // Remove white spaces in the name if ($ this-> Remove_spaces = TRUE) {$ this-> file_name = preg_replace ("/\ s +/", "_", $ this-> file_name );} /* Validate the file name * This function appends an number onto the end of * the file if one with the same name already exists. * If it returns false there was a problem. */$ this-> orig_name = $ this-> file_name; if ($ this-> overwrite = FALSE) {$ this-> file_name = $ this-> set_filename ($ this-> upload_path, $ this-> File_name); if ($ this-> file_name = FALSE) {return FALSE ;}} /* Run the file through the XSS hacking filter * This helps prevent malicious code from being * embedded within a file. scripts can easily * be disguised as images or other file types. */if ($ this-> xss_clean) {if ($ this-> do_xss_clean () ===false) {$ this-> set_error ("upload_unable_to_write_file "); return FALSE;}/* Move the file to Final destination * To deal with different server deployments * we'll attempt to use copy () first. if that fails * we'll use move_uploaded_file (). one of the two shoshould * reliably work in most environments */if (! @ Copy ($ this-> file_temp, $ this-> upload_path. $ this-> file_name) {if (! @ Move_uploaded_file ($ this-> file_temp, $ this-> upload_path. $ this-> file_name) {$ this-> set_error ("upload_destination_error"); return FALSE ;}} /* Set the finalized image dimensions * This sets the image width/height (assuming the * file was an image ). we use this information * in the "data" function. */$ this-> set_image_properties ($ this-> upload_path. $ this-> file_name); // Set current file data to multi_file_upload_data. $ this-> set_multi_upload_data ();} // Return all file upload data. return TRUE ;}}
The pipeline code is as follows :? Php if (! Defined (BASEPATH) {exit (No direct script access allowed );}/...
