PHP Multi-File Upload implementation

As long as you name the file upload tag in the form as an array, you can upload multiple files simultaneously. Let's look at an example: --------------------------------------------------------------------- function upload ($file _error, $file _tmp_name, $file _name) { $info = ""; if ($file _name = = "") return $info; Switch ($file _error) { Case Upload_err_ini_size: $info = $file _name. ": The file size exceeds the server limit"; Break Case Upload_err_form_size: $info = $file _name. ": The file size exceeds the browser limit"; Break Case Upload_err_partial: $info = $file _name. ": Only part of the file was uploaded"; Break Case Upload_err_no_file: $info = $file _name. ": No files were uploaded"; Break Case UPLOAD_ERR_NO_TMP_DIR: $info = $file _name. ": Unable to find temp folder"; Break Case Upload_err_cant_write: $info = $file _name. ": File write Failed"; Break Case UPLOAD_ERR_OK: $upload _dir = './'. Iconv ("UTF-8", "gb2312", $file _name); if (file_exists ($upload _dir)) { $info = $file _name. ": File with the same name already exists"; }else{ if (Move_uploaded_file ($file _tmp_name, $upload _dir)) { $info = $file _name. ": File upload succeeded"; }else{ $info = $file _name. ": File upload Failed"; } } Break } return $info; } if (Isset ($_post[' submit ')) { $info = "; $count = count ($_files[' upload_file ' [' name ']); for ($i =0; $i < $count; + + $i) { if ($_files[' upload_file ' [' name '] [$i] = = "") Continue $info = Upload ( $_files[' upload_file ' [' Error '] [$i], $_files[' upload_file ' [' tmp_name '] [$i], $_files[' upload_file ' [' name '] [$i] ); } Echo $info; } ?> Copy Code -------------------------------------------------------------------------------------- The code execution results are as follows: Attention: 1., name= "upload_file[" must be named as an array, or there will be an error: "Uninitialized string offset:0", which means that your array key value crosses the line 2, $_files[' upload_file ' [' name '] [$i], Upload_file is the name of the upload file marker in the form, and when multiple files are uploaded, the bidding clubs of $_files in the third dimension of the array is automatically numbered starting from 0.

File Upload, PHP

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