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features.file-upload.common-pitfalls.html
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<HTML
><HEAD
><TITLE
>Common Pitfalls</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.57"><LINK
REL="HOME"
TITLE="PHP Manual"
HREF="manual.html"><LINK
REL="UP"
TITLE="Handling file uploads"
HREF="features.file-upload.html"><LINK
REL="PREVIOUS"
TITLE="Handling file uploads"
HREF="features.file-upload.html"><LINK
REL="NEXT"
TITLE="Uploading multiple files"
HREF="feature-fileupload.multiple.html"><META
NAME="HTTP_EQUIV"
CONTENT="text/html; charset=ISO-8859-1"></HEAD
><BODY
CLASS="sect1"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>PHP Manual</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="features.file-upload.html"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Chapter 19. Handling file uploads</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="feature-fileupload.multiple.html"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="sect1"
><H1
CLASS="sect1"
><A
NAME="features.file-upload.common-pitfalls"
>Common Pitfalls</A
></H1
><P
> The MAX_FILE_SIZE item cannot specify a file size greater than the file
size that has been set in the upload_max_filesize in the PHP 3.ini file
or the corresponding php3_upload_max_filesize Apache .conf directive.
The default is 2 Megabytes.
</P
><P
> Not validating which file you operate on may mean that users can access
sensitive information in other directories.
</P
><P
> Please note that the CERN httpd seems to strip off everything
starting at the first whitespace in the content-type mime header
it gets from the client. As long as this is the case, CERN httpd
will not support the file upload feature.
</P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="features.file-upload.html"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="manual.html"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="feature-fileupload.multiple.html"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Handling file uploads</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="features.file-upload.html"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Uploading multiple files</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>