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Zend

200-550 · Question #190

An HTML form contains this form element: <input type="file" name="myFile" /> When this form is submitted, the following PHP code gets executed: move_uploaded_file( $_FILES['myFile']['tmp_name']…

The correct answer is B. Sanitize the file name in $_FILES['myFile']['name'] because this value is not consistent among D. Sanitize the file name in $_FILES['myFile']['name'] because this value could be forged. See the full explanation below for the reasoning.

Question

An HTML form contains this form element:

<input type="file" name="myFile" /> When this form is submitted, the following PHP code gets executed:

move_uploaded_file( $_FILES['myFile']['tmp_name'], 'uploads/' . $_FILES['myFile']['name'] ); Which of the following actions must be taken before this code may go into production? (Choose 2)

Options

  • ACheck with is_uploaded_file() whether the uploaded file $_FILES['myFile']['tmp_name'] is valid
  • BSanitize the file name in $_FILES['myFile']['name'] because this value is not consistent among
  • CCheck the charset encoding of the HTTP request to see whether it matches the encoding of the
  • DSanitize the file name in $_FILES['myFile']['name'] because this value could be forged
  • EUse $HTTP_POST_FILES instead of $_FILES to maintain upwards compatibility

How the community answered

(42 responses)
  • A
    5% (2)
  • B
    76% (32)
  • C
    14% (6)
  • E
    5% (2)

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