file.3

使用PHP+MySQL编写的一个图片上传共享系统.

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''' $RCSfile$$Revision$$Date$
'''
''' $Log$
'''
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.ft CW
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'''
'''
'''     Set up \*(-- to give an unbreakable dash;
'''     string Tr holds user defined translation string.
'''     Bell System Logo is used as a dummy character.
'''
.tr \(*W-|\(bv\*(Tr
.ie n \{\
.ds -- \(*W-
.ds PI pi
.if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
.ds L" ""
.ds R" ""
'''   \*(M", \*(S", \*(N" and \*(T" are the equivalent of
'''   \*(L" and \*(R", except that they are used on ".xx" lines,
'''   such as .IP and .SH, which do another additional levels of
'''   double-quote interpretation
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.\"	If the F register is turned on, we'll generate
.\"	index entries out stderr for the following things:
.\"		TH	Title 
.\"		SH	Header
.\"		Sh	Subsection 
.\"		Ip	Item
.\"		X<>	Xref  (embedded
.\"	Of course, you have to process the output yourself
.\"	in some meaninful fashion.
.if \nF \{
.de IX
.tm Index:\\$1\t\\n%\t"\\$2"
..
.nr % 0
.rr F
.\}
.TH FILE 1 "PHP 3.0.6" "3/Apr/99" " Contributed PHP Docs "
.UC
.if n .hy 0
.if n .na
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.de CQ          \" put $1 in typewriter font
.ft CW
'if n "\c
'if t \\&\\$1\c
'if n \\&\\$1\c
'if n \&"
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.\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2
.	\" AM - accent mark definitions
.bd B 3
.	\" fudge factors for nroff and troff
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.if t \{\
.	ds #H ((1u-(\\\\n(.fu%2u))*.13m)
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.	ds #] \&
.\}
.	\" simple accents for nroff and troff
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.\}
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.	ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
.	ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
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.	\" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
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\{\
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.	ds 3 3
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.	ds Th \o'LP'
.	ds ae ae
.	ds Ae AE
.	ds oe oe
.	ds Oe OE
.\}
.rm #[ #] #H #V #F C
.SH "NAME"
File_1.0 \- A wrapper class to common PHP file operations
.SH "SYNOPSIS"
.PP
.Vb 3
\&    include("class.File.php3");
\&    $File = new File;
\&    $fakeUid = getmyuid();
.Ve
.Vb 4
\&    $RealUid = $File->get_real_uid();
\&    $RealGid = $File->get_real_gid();
\&    echo "Process claims to be UID [$fakeUid]<BR>\en";
\&    echo "Process is -really- [$RealUid / $RealGid] <BR>\en";
.Ve
.Vb 21
\&    $oldFile = '/path/to/old.html';
\&    $newFile = '/path/to/the/new.html';
\&    if(!$File->copy_file($oldFile,$newFile))
\&    {
\&        echo "$File->ERROR <BR>\en";
\&        exit;
\&    }
\&    $contents = $File->read_file($contents);
\&    echo "<PRE>$contents</PRE>\en";
\&    unlink($newFile);
\&    if(!$File->write_file($newFile,$contents))
\&    {
\&        echo "$File->ERROR <BR>\en";
\&        exit;
\&    }
\&    $plainText = $File->strip_read($newFile);
\&    echo "<PRE>$plainText</PRE>\en";
\&    if($File->is_owner($newFile))
\&    {
\&        echo "File UID and process UID match<BR>\en";
\&    } else { echo "File UID and process UID mismatch<BR>\en"; }
.Ve
.Vb 4
\&    if($File->is_inGroup($newFile))
\&    {
\&        echo "File GID and process GID match<BR>\en";
\&    } else { echo "File GID and process GID mismatch<BR>\en"; }
.Ve