[英]File type PHP validation
What I am doing wrong with the code , it always shows 'File types .doc,.docx,.odt and max file size 2mb supported 'even if the file type is .doc format and size is 0kb. 我在代码中做的错误,即使文件类型为.doc格式且大小为0kb,它也始终显示“文件类型.doc,.docx,.odt和支持的最大文件大小为2mb”。
if(($_FILES["file"]["type"] != 'application/octet-stream') ||
($_FILES["file"]["type"] != 'application/vnd.oasis.opendocument.text')||
($_FILES["file"]["type"] != 'application/msword')||
($_FILES["file"]["size"] > 200000))
{
//echo $_FILES["file"]["size"];
//echo $_FILES["file"]["type"];
$this->assign_values('msg',"File types .doc,.docx,.odt and max file size 2mb supported");
//echo "Error: " . $_FILES["file"]["error"] . "<br />";
}
You need to change the ||
您需要更改
||
to &&
between the file types. 到
&&
在文件类型之间。 Or even better check the type against a list of allowed types: 甚至更好地根据允许的类型列表检查类型:
$allowedTypes = array('application/octet-stream', 'application/vnd.oasis.opendocument.text', 'application/msword');
if(!in_array($_FILES["file"]["type"], $allowedTypes) || $_FILES["file"]["size"] > 200000)
{
//echo $_FILES["file"]["size"];
//echo $_FILES["file"]["type"];
$this->assign_values('msg',"File types .doc,.docx,.odt and max file size 2mb supported");
//echo "Error: " . $_FILES["file"]["error"] . "<br />";
}
You are using OR, which means 1 of the parameters you gave has to be true. 您正在使用OR,这意味着您输入的参数之一必须为true。
Since you are checking the type 3 times on different values, it is bound to always return true and thus trigger the if. 由于您要在不同的值上检查类型3次,因此它一定总是返回true,从而触发if。
您正在使用OR(||),如果一个语句中的任何一个为true,则代码将执行
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