PHP文件上载确定错误或未选择文件
在PHP中,如何区分用户未选择文件和发生上载错误之间的区别PHP文件上载确定错误或未选择文件,php,upload,Php,Upload,在PHP中,如何区分用户未选择文件和发生上载错误之间的区别 谢谢如果上传时出错,将出现文件名。如果没有文件名或$\u文件数组,则用户没有选择文件。如果我没有弄错,我相信您指的是此文件 $upload_errors = array( UPLOAD_ERR_OK =>"No errors.", UPLOAD_ERR_INI_SIZE => "Larger than upload_max_filesize.", UPLOAD_ERR_FORM_SIZE => "Larger than
谢谢如果上传时出错,将出现文件名。如果没有文件名或
$\u文件
数组,则用户没有选择文件。如果我没有弄错,我相信您指的是此文件
$upload_errors = array(
UPLOAD_ERR_OK =>"No errors.",
UPLOAD_ERR_INI_SIZE => "Larger than upload_max_filesize.",
UPLOAD_ERR_FORM_SIZE => "Larger than form MAX_FILE_SIZE.",
UPLOAD_ERR_PARTIAL => "Partial upload.",
UPLOAD_ERR_NO_FILE => "No file.",
UPLOAD_ERR_NO_TMP_DIR => "No temporary directory.",
UPLOAD_ERR_CANT_WRITE => "Can't write to disk.",
UPLOAD_ERR_EXTENSION => "File upload stopped by extension."
);
$tmp_name = $_FILES['file_upload']['tmp_name'];
$target_file = basename($_FILES['file_upload']['name']);
$upload_dir = "uploads";
if(move_uploaded_file($tmp_name, $upload_dir."/".$target_file)){
$message = "File uploaded successfully.";
}else{
$error = $_FILES['file_upload']['error'];
$message = $upload_errors[$error];
}
如果用户未选择文件,则该字段将为空,您应该能够进行错误检查
if($_FILES["file"]["name"] != "") { THERE IS A FILE HERE } ELSE { ERROR USER DID NOT SELECT FILE }
您可以查看
$\u文件['file1']['error']
。更多详情: