PHPÈ¡¶þ½øÖÆÎļþÍ·¿ìËÙÅжÏÎļþÀàÐÍ
<?php
$filename
=
"
D:
\\
296.mid
"
;
$file
=
fopen
(
$filename
,
"
rb
"
)
;
$bin
=
fread
(
$file
,
2
)
;
//Ö»¶Á2×Ö½Ú
fclose
(
$file
)
;
$strInfo
= @
unpack
(
"
c2chars
"
,
$bin
)
;
$typeCode
=
intval
(
$strInfo
[
'
chars1
'
]
.
$strInfo
[
'
chars2
'
])
;
$fileType
=
''
;
switch
(
$typeCode
)
{
case
7790
:
$fileType
=
'
exe
'
;
break
;
case
7784
:
$fileType
=
'
midi
'
;
break
;
case
8297
:
$fileType
=
'
rar
'
;
break
;
case
255216
:
$fileType
=
'
jpg
'
;
break
;
case
7173
:
$fileType
=
'
gif
'
;
break
;
case
6677
:
$fileType
=
'
bmp
'
;
break
;
case
13780
:
$fileType
=
'
png
'
;
break
;
default
:
echo
'
unknown
'
;
}
echo
'
this is a(an)
'
.
$fileType
.
'
file:
'
.
$typeCode
;
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