如何在用户上传非.csv文件时添加错误消息
我有一个PHP上传.csv文件的代码。 它工作正常。 我想要的是，如果用户上传文档或图像types，显示警告或错误消息。 这是我的代码：
<?php include_once 'db.php'; if(isset($_POST['submit'])){ if($_FILES['csv_data']['name']){ $arrFileName = explode('.',$_FILES['csv_data']['name']); if($arrFileName[1] == 'csv'){ $handle = fopen($_FILES['csv_data']['tmp_name'], "r"); while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) { $item1 = mysqli_real_escape_string($dbConnection,$data[0]); $item2 = mysqli_real_escape_string($dbConnection,$data[1]); $import="INSERT into tbl_csv values('','$item1','$item2')"; mysqli_query($dbConnection,$import); } fclose($handle); print "Import done"; } }else{ echo "only Excel"; } } ?> <html> <head> <title>Upload CSV and Insert into Database Using PHP</title> <head> <body> <form method='POST' enctype='multipart/form-data'> Upload CSV: <input type='file' name='csv_data' /> <input type='submit' name='submit' value='import' /> </form> </body> </html> 怎么做？
您可以使用
if(pathinfo( $_FILES['csv_data']['name'],PATHINFO_EXTENSION) =='csv')
要么
if ($_FILES['csv_data']['type'] == 'text/csv')
这是你的php代码
if (isset($_POST['submit'])) { if (!empty($_FILES['csv_data']['name'])) { if(pathinfo( $_FILES['csv_data']['name'],PATHINFO_EXTENSION) =='csv') { $handle = fopen($_FILES['csv_data']['tmp_name'], "r"); while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) { $item1 = mysqli_real_escape_string($dbConnection, $data[0]); $item2 = mysqli_real_escape_string($dbConnection, $data[1]); $import = "INSERT into tbl_csv values('','$item1','$item2')"; mysqli_query($dbConnection, $import); } fclose($handle); print "Import done"; } else{ echo "only csv file allowed"; } } else { echo "Please select file"; } }
更新：
csv_file_upload.php：
<?php if(isset($_POST['submit'])){ if(isset($_FILES['csv_data']['tmp_name'])){ $file_ext = end( (explode('.',$_FILES['csv_data']['name']) )); if($file_ext == 'csv' || $file_ext == 'CSV'){ echo 'CSV file uploaded!'; } else { echo 'ERROR: No CSV file uploaded!'; } } } ?> <html> <head> <title>Upload CSV and Insert into Database Using PHP</title> <head> <body> <form method='POST' action="csv_file_upload.php" enctype='multipart/form-data'> Upload CSV: <input type='file' name='csv_data' /> <input type='submit' name='submit' value='import' /> </form> </body> </html>