PHP基于文件头的文件类型验证类函数

<?php
/**
*检证文件类型类
*
*@authorSilver
*/
classFileTypeValidation
{
//文件类型，不同的头信息
privatestatic$_fileFormats=Array(
"jp2"=>"0000000C6A502020",<br/>"3gp"=>"0000002066747970",
"3gp5"=>"0000001866747970",
"m4a"=>"00000020667479704D3441",
"ico"=>"00000100",
"spl"=>"00000100",
"vob"=>"000001BA",
"cur"=>"00000200",
"wb2"=>"00000200",
"wk1"=>"0000020006040600",
"wk3"=>"00001A0000100400",
"wk4"=>"00001A0002100400",
"wk5"=>"00001A0002100400",
"123"=>"00001A00051004",
"qxd"=>"00004D4D585052",
"mdf"=>"010F0000",
"tr1"=>"0110",
"rgb"=>"01DA01010003",
"drw"=>"07",
"dss"=>"02647373",
"dat"=>"A90D000000000000",
"db3"=>"03",
"qph"=>"03000000",
"adx"=>"80000020031204",
"db4"=>"04",
"n"=>"FFFE0000",
"a"=>"FFFE0000",
"skf"=>"07534B46",
"dtd"=>"0764743264647464",
"db"=>"D0CF11E0A1B11AE1",
"pcx"=>"0A050101",
"mp"=>"0CED",
"doc"=>"D0CF11E0A1B11AE1",
"nri"=>"0E4E65726F49534F",
"wks"=>"FF00020004040554",
"pf"=>"1100000053434341",
"ntf"=>"4E49544630",
"nsf"=>"4E45534D1A01",
"arc"=>"41724301",
"pak"=>"5041434B",
"eth"=>"1A350100",
"mkv"=>"1A45DFA393428288",
"ws"=>"1D7D",
"gz"=>"1F8B08",
"tar.z"=>"1FA0",
"ain"=>"2112",
"lib"=>"213C617263683E0A",
"msi"=>"D0CF11E0A1B11AE1",
"vmdk"=>"4B444D",
"dsp"=>"23204D6963726F73",
"amr"=>"2321414D52",
"hdr"=>"49536328",
"sav"=>"24464C3240282329",
"eps"=>"C5D0D3C6",
"pdf"=>"25504446",
"fdf"=>"25504446",
"hqx"=>"2854686973206669",
"log"=>"2A2A2A2020496E73",
"ivr"=>"2E524543",
"rm"=>"2E524D46",
"rmvb"=>"2E524D46",
"ra"=>"2E7261FD00",
"au"=>"646E732E",
"cat"=>"30",
"evt"=>"300000004C664C65",
"asf"=>"3026B2758E66CF11",
"wma"=>"3026B2758E66CF11",
"wmv"=>"3026B2758E66CF11",
"wri"=>"BE000000AB",
"7z"=>"377ABCAF271C",
"psd"=>"38425053",
"sle"=>"414376",
"asx"=>"3C",
"xdr"=>"3C",
"dci"=>"3C21646F63747970",
"manifest"=>"3C3F786D6C2076657273696F6E3D",
"xml"=>"3C3F786D6C2076657273696F6E3D22312E30223F3E",
"msc"=>"D0CF11E0A1B11AE1",
"fm"=>"3C4D616B65724669",
"mif"=>"56657273696F6E20",
"gid"=>"4C4E0200",
"hlp"=>"4C4E0200",
"dwg"=>"41433130",
"syw"=>"414D594F",
"abi"=>"414F4C494E444558",
"aby"=>"414F4C4442",
"bag"=>"414F4C2046656564",
"idx"=>"5000000020000000",
"ind"=>"414F4C494458",
"pfc"=>"414F4C564D313030",
"org"=>"414F4C564D313030",
"vcf"=>"424547494E3A5643",
"bin"=>"424C4932323351",
"bmp"=>"424D",
"dib"=>"424D",
"prc"=>"424F4F4B4D4F4249",
"bz2"=>"425A68",
"tar.bz2"=>"425A68",
"tbz2"=>"425A68",
"tb2"=>"425A68",
"rtd"=>"43232B44A4434DA5",
"cbd"=>"434246494C45",
"iso"=>"4344303031",
"clb"=>"434F4D2B",
"cpt"=>"43505446494C45",
"cru"=>"43525553482076",
"swf"=>"465753",
"ctf"=>"436174616C6F6720",
"dms"=>"444D5321",
"adf"=>"5245564E554D3A2C",
"dvr"=>"445644",
"ifo"=>"445644",
"cdr"=>"52494646",
"vcd"=>"454E545259564344",
"mdi"=>"4550",
"e01"=>"4C5646090D0AFF00",
"evtx"=>"456C6646696C6500",
"qbb"=>"458600000600",
"cpe"=>"464158434F564552",
"flv"=>"464C56",
"aiff"=>"464F524D00",
"eml"=>"582D",
"gif"=>"47494638",
"pat"=>"47504154",
"gx2"=>"475832",
"sh3"=>"4848474231",
"tif"=>"4D4D002B",
"tiff"=>"4D4D002B",
"mp3"=>"494433",
"koz"=>"49443303000000",
"crw"=>"49491A0000004845",
"cab"=>"4D534346",
"lit"=>"49544F4C49544C53",
"chi"=>"49545346",
"chm"=>"49545346",
"jar"=>"5F27A889",
"jg"=>"4A47040E000000",
"kgb"=>"4B47425F61726368",
"shd"=>"68490000",
"lnk"=>"4C00000001140200",
"obj"=>"80",
"pdb"=>"ACED000573720012",
"mar"=>"4D41723000",
"dmp"=>"504147454455",
"hdmp"=>"4D444D5093A7",
"mls"=>"4D563243",
"mmf"=>"4D4D4D440000",
"nvram"=>"4D52564E",
"ppz"=>"4D534346",
"snp"=>"4D534346",
"tlb"=>"4D53465402000100",
"dvf"=>"4D535F564F494345",
"msv"=>"4D535F564F494345",
"mid"=>"4D546864",
"midi"=>"4D546864",
"dsn"=>"4D56",
"com"=>"EB",
"dll"=>"4D5A",
"drv"=>"4D5A",
"exe"=>"4D5A",
"pif"=>"4D5A",
"qts"=>"4D5A",
"qtx"=>"4D5A",
"sys"=>"FFFFFFFF",
"acm"=>"4D5A",
"ax"=>"4D5A900003000000",
"cpl"=>"DCDC",
"fon"=>"4D5A",
"ocx"=>"4D5A",
"olb"=>"4D5A",
"scr"=>"4D5A",
"vbx"=>"4D5A",
"vxd"=>"4D5A",
"386"=>"4D5A",
"api"=>"4D5A900003000000",
"flt"=>"76323030332E3130",
"zap"=>"4D5A90000300000004000000FFFF",
"sln"=>"4D6963726F736F66742056697375616C",
"jnt"=>"4E422A00",
"jtp"=>"4E422A00",
"cod"=>"4E616D653A20",
"dbf"=>"4F504C4461746162",
"oga"=>"4F67675300020000",
"ogg"=>"4F67675300020000",
"ogv"=>"4F67675300020000",
"ogx"=>"4F67675300020000",
"dw4"=>"4F7B",
"pgm"=>"50350A",
"pax"=>"504158",
"pgd"=>"504750644D41494E",
"img"=>"EB3C902A",
"zip"=>"504B0304140000",
"docx"=>"504B030414000600",
"pptx"=>"504B030414000600",
"xlsx"=>"504B030414000600",
"kwd"=>"504B0304",
"odt"=>"504B0304",
"odp"=>"504B0304",
"ott"=>"504B0304",
"sxc"=>"504B0304",
"sxd"=>"504B0304",
"sxi"=>"504B0304",
"sxw"=>"504B0304",
"wmz"=>"504B0304",
"xpi"=>"504B0304",
"xps"=>"504B0304",
"xpt"=>"5850434F4D0A5479",
"grp"=>"504D4343",
"qemu"=>"514649",
"abd"=>"5157205665722E20",
"qsd"=>"5157205665722E20",
"reg"=>"FFFE",
"sud"=>"52454745444954",
"ani"=>"52494646",
"cmx"=>"52494646",
"ds4"=>"52494646",
"4xm"=>"52494646",
"avi"=>"52494646",
"cda"=>"52494646",
"qcp"=>"52494646",
"rmi"=>"52494646",
"wav"=>"52494646",
"cap"=>"58435000",
"rar"=>"526172211A0700",
"ast"=>"5343486C",
"shw"=>"53484F57",
"cpi"=>"FF464F4E54",
"sit"=>"5374756666497420",
"sdr"=>"534D415254445257",
"cnv"=>"53514C4F434F4E56",
"cal"=>"B5A2B0B3B3B0A5B5",
"info"=>"E310000100000000",
"uce"=>"55434558",
"ufa"=>"554641C6D2C1",
"pch"=>"564350434830",
"ctl"=>"56455253494F4E20",
"ws2"=>"575332303030",
"lwp"=>"576F726450726F",
"bdr"=>"5854",
"zoo"=>"5A4F4F20",
"ecf"=>"5B47656E6572616C",
"vcw"=>"5B4D535643",
"dun"=>"5B50686F6E655D",
"sam"=>"5B7665725D",
"cpx"=>"5B57696E646F7773",
"cfg"=>"5B666C7473696D2E",
"cas"=>"5F434153455F",
"cbk"=>"5F434153455F",
"arj"=>"60EA",
"vhd"=>"636F6E6563746978",
"csh"=>"6375736800000002",
"p10"=>"64000000",
"dex"=>"6465780A30303900",
"dsw"=>"64737766696C65",
"flac"=>"664C614300000022",
"dbb"=>"6C33336C",
"acd"=>"72696666",
"ram"=>"727473703A2F2F",
"dmg"=>"78",
"lgc"=>"7B0D0A6F20",
"lgd"=>"7B0D0A6F20",
"pwi"=>"7B5C707769",
"rtf"=>"7B5C72746631",
"psp"=>"7E424B00",
"wab"=>"9CCBCB8D1375D211",
"wpf"=>"81CDAB",
"png"=>"89504E470D0A1A0A",
"aw"=>"8A0109000000E108",
"hap"=>"91334846",
"skr"=>"9501",
"gpg"=>"99",
"pkr"=>"9901",
"qdf"=>"AC9EBD8F0000",
"pwl"=>"E3828596",
"dcx"=>"B168DE3A",
"tib"=>"B46E6844",
"acs"=>"C3ABCDAB",
"lbk"=>"C8007900",
"class"=>"CAFEBABE",
"dbx"=>"CFAD12FE",
"dot"=>"D0CF11E0A1B11AE1",
"pps"=>"D0CF11E0A1B11AE1",
"ppt"=>"D0CF11E0A1B11AE1",
"xla"=>"D0CF11E0A1B11AE1",
"xls"=>"D0CF11E0A1B11AE1",
"wiz"=>"D0CF11E0A1B11AE1",
"ac_"=>"D0CF11E0A1B11AE1",
"adp"=>"D0CF11E0A1B11AE1",
"apr"=>"D0CF11E0A1B11AE1",
"mtw"=>"D0CF11E0A1B11AE1",
"opt"=>"D0CF11E0A1B11AE1",
"pub"=>"D0CF11E0A1B11AE1",
"rvt"=>"D0CF11E0A1B11AE1",
"sou"=>"D0CF11E0A1B11AE1",
"spo"=>"D0CF11E0A1B11AE1",
"vsd"=>"D0CF11E0A1B11AE1",
"wps"=>"D0CF11E0A1B11AE1",
"ftr"=>"D20A0000",
"arl"=>"D42A",
"aut"=>"D42A",
"wmf"=>"D7CDC69A",
"efx"=>"DCFE",
"one"=>"E4525C7B8CD8A74D",
"rpm"=>"EDABEEDB",
"gho"=>"FEEF",
"ghs"=>"FEEF",
"wp"=>"FF575043",
"wpd"=>"FF575043",
"wpg"=>"FF575043",
"wpp"=>"FF575043",
"wp5"=>"FF575043",
"wp6"=>"FF575043",
"jfif"=>"FFD8FF",
"jpe"=>"FFD8FF",
"jpeg"=>"FFD8FF",
"jpg"=>"FFD8FF",
"mof"=>"FFFE23006C006900",
"ipa"=>"504B03040A",
);
/**
*检查文件类型
*
*@paramstring$filePath文件路径
*@paramstring$fileExt文件扩展名
*
*@returnboolean
*/
publicstaticfunctionvalidation($filePath,$fileExt)
{
//文件格式未知
if(!isset(self::$_fileFormats[$fileExt]))
{
returnfalse;
}
$length=strlen(self::$_fileFormats[$fileExt]);
$bin=self::_readFile($filePath,$length);
$fileHead=@unpack("H{$length}",$bin);
//判断文件头
if(strtolower(self::$_fileFormats[$fileExt])==$fileHead[1])
{
returntrue;
}
returnfalse;
}
/**
*读取文件内容
*
*@paramstring$filePath文件路径
*@paraminteger$size
*
*@returnstring
*/
privatefunction_readFile($filePath,$size)
{
$file=fopen($filePath,"rb");
$bin=fread($file,$size);
fclose($file);
return$bin;
}
}
?>