Validating user input in shell script Virtualseks
Even when replacements are not possible; uploading an .htaccess file could cause some problems, especially if it is sent after the nerd throws in a devious script to use htaccess to redirect to his upload. I have found it useful to re-order the multidimensional $_FILES array into a more intuitive format, as proposed by many other developers already.
Unfortunately, most of the proposed functions are not able to re-order the $_FILES array when it has more than 1 additional dimension.
Therefore, I would like to contribute the function below, which is capable of meeting the aforementioned requirement: Note that the MAX_FILE_SIZE hidden field is only used by the PHP script which receives the request, as an instruction to reject files larger than the given bound.
This field has no significance for the browser, it does not provide a client-side check of the file-size, and it has nothing to do with web standards or browser features.
Imagine if it replaced the upload post processor file itself.
Keep in mind: fooling this setting on the browser side is quite easy, so never rely on files with a greater size being blocked by this feature.PHP is capable of receiving file uploads from any RFC-1867 compliant browser.hidden field (measured in bytes) must precede the file input field, and its value is the maximum filesize accepted by PHP.Point your upload path to outside of public_html area or prevent direct browsing (using .htaccess restrictions). Think, if someone uploads malicious code, specially php codes, they will be executed on the server.3.