Dateien nach dem Download löschen

[SmartDen]

Ha All!

Ich hätte da mal eine Frage. Ich generiere mit PHP eine Datei und biete sie zum Herunterladen, indem ich ein Javascriptgesteuertes Button anzeige. Nach dem Downloaden sollte die Datei nicht mehr vorhanden sein. Wie mach ich das?

[tkortkamp]

Mit dem Befehl unlink()

c ya,
Tobias

[Gaert]

@Thortkamp: Ich denke, da hast du was falsch verstanden!

@SmartDen:
Ich denke es ist das beste, wenn du die Dateien gar nicht erst Physisch generierst, also auf dem Server als Datei speicherst, sondern dem PHP Skript das du generierst, den entsprechenden Header verpasst, was den Browser dann dazu bringt, die Seite nicht anzuzeigen, sondern downzuloaden.
Um header zu manipulieren benutzt du (sinngemäß) den Befehl header() !

[SmartDen]

Danke für den Tipp, Gaert, aber header() funkt bei mir nicht. Es kann natürlich an dem Srver liegen. Oder gibts da noch was, was ich wissen sollte?

[sepp2k]

Der Befehl header muss ausgeführt werden bevor etwas ausgegeben wird.

<?php
echo "lala";
header ("irgendwas");
?>
geht nicht

lalala
lulu
<?php
header("...");
?>
geht auch nicht

<?php
header("...");
?>
geht ebenfalls nicht (man beachte das Leerzeichen vor <?php)

<?php
header("...");
?>
geht

[mehlvogel]

Das man natürlich nur gültige Header schicken sollte, für nen Zipfile download so:



header( "Content-length: " . filesize ($filename) );
header( "Content-type: application/zip" );
header( "Content-disposition: infile; filename=\"".$filename."\"" );
header("Cache-Control: private");


Und dann ein herzliches



print($filecontent);


anschließt.

[Gaert]

Da gibts nicht mehr viel dazu zu sagen...

Hier noch ne "kleine" liste von den default mime types vom Apache:



# This is the default mime.types file from the Apache web server distribution

# This file controls what Internet media types are sent to the client for
# given file extension(s). Sending the correct media type to the client
# is important so they know how to handle the content of the file.
# Extra types can either be added here or by using an AddType directive
# in your config files. For more information about Internet media types,
# please read RFC 2045, 2046, 2047, 2048, and 2077. The Internet media type
# registry is at <ftp://ftp.iana.org/in-notes/iana/assignments/media-types/>.

# MIME type Extension
application/EDI-Consent
application/EDI-X12
application/EDIFACT
application/activemessage
application/andrew-inset ez
application/applefile
application/atomicmail
application/cals-1840
application/commonground
application/cybercash
application/dca-rft
application/dec-dx
application/eshop
application/hyperstudio
application/iges
application/mac-binhex40 hqx
application/mac-compactpro cpt
application/macwriteii
application/marc
application/mathematica
application/msword doc
application/news-message-id
application/news-transmission
application/octet-stream bin dms lha lzh exe class
application/oda oda
application/pdf pdf
application/pgp-encrypted
application/pgp-keys
application/pgp-signature
application/pkcs10
application/pkcs7-mime
application/pkcs7-signature
application/postscript ai eps ps
application/prs.alvestrand.titrax-sheet
application/prs.cww
application/prs.nprend
application/remote-printing
application/riscos
application/rtf rtf
application/set-payment
application/set-payment-initiation
application/set-registration
application/set-registration-initiation
application/sgml
application/sgml-open-catalog
application/slate
application/smil smi smil
application/vemmi
application/vnd.3M.Post-it-Notes
application/vnd.FloGraphIt
application/vnd.acucobol
application/vnd.anser-web-certificate-issue-initiation
application/vnd.anser-web-funds-transfer-initiation
application/vnd.audiograph
application/vnd.businessobjects
application/vnd.claymore
application/vnd.comsocaller
application/vnd.dna
application/vnd.dxr
application/vnd.ecdis-update
application/vnd.ecowin.chart
application/vnd.ecowin.filerequest
application/vnd.ecowin.fileupdate
application/vnd.ecowin.series
application/vnd.ecowin.seriesrequest
application/vnd.ecowin.seriesupdate
application/vnd.enliven
application/vnd.epson.salt
application/vnd.fdf
application/vnd.ffsns
application/vnd.framemaker
application/vnd.fujitsu.oasys
application/vnd.fujitsu.oasys2
application/vnd.fujitsu.oasys3
application/vnd.fujitsu.oasysgp
application/vnd.fujitsu.oasysprs
application/vnd.fujixerox.docuworks
application/vnd.hp-HPGL
application/vnd.hp-PCL
application/vnd.hp-PCLXL
application/vnd.hp-hps
application/vnd.ibm.MiniPay
application/vnd.ibm.modcap
application/vnd.intercon.formnet
application/vnd.intertrust.digibox
application/vnd.intertrust.nncp
application/vnd.is-xpr
application/vnd.japannet-directory-service
application/vnd.japannet-jpnstore-wakeup
application/vnd.japannet-payment-wakeup
application/vnd.japannet-registration
application/vnd.japannet-registration-wakeup
application/vnd.japannet-setstore-wakeup
application/vnd.japannet-verification
application/vnd.japannet-verification-wakeup
application/vnd.koan
application/vnd.lotus-1-2-3
application/vnd.lotus-approach
application/vnd.lotus-freelance
application/vnd.lotus-organizer
application/vnd.lotus-screencam
application/vnd.lotus-wordpro
application/vnd.meridian-slingshot
application/vnd.mif mif
application/vnd.minisoft-hp3000-save
application/vnd.mitsubishi.misty-guard.trustweb
application/vnd.ms-artgalry
application/vnd.ms-asf
application/vnd.ms-excel
application/vnd.ms-powerpoint ppt
application/vnd.ms-project
application/vnd.ms-tnef
application/vnd.ms-works
application/vnd.music-niff
application/vnd.musician
application/vnd.netfpx
application/vnd.noblenet-directory
application/vnd.noblenet-sealer
application/vnd.noblenet-web
application/vnd.novadigm.EDM
application/vnd.novadigm.EDX
application/vnd.novadigm.EXT
application/vnd.osa.netdeploy
application/vnd.powerbuilder6
application/vnd.powerbuilder6-s
application/vnd.rapid
application/vnd.seemail
application/vnd.shana.informed.formtemplate
application/vnd.shana.informed.interchange
application/vnd.shana.informed.package
application/vnd.street-stream
application/vnd.svd
application/vnd.swiftview-ics
application/vnd.truedoc
application/vnd.visio
application/vnd.webturbo
application/vnd.wrq-hp3000-labelled
application/vnd.wt.stf
application/vnd.xara
application/vnd.yellowriver-custom-menu
application/wita
application/wordperfect5.1
application/x-bcpio bcpio
application/x-cdlink vcd
application/x-chess-pgn pgn
application/x-compress
application/x-cpio cpio
application/x-csh csh
application/x-director dcr dir dxr
application/x-dvi dvi
application/x-futuresplash spl
application/x-gtar gtar
application/x-gzip
application/x-hdf hdf
application/x-javascript js
application/x-kword kwd kwt
application/x-kspread ksp
application/x-kpresenter kpr kpt
application/x-kchart chrt
application/x-killustrator kil
application/x-koan skp skd skt skm
application/x-latex latex
application/x-netcdf nc cdf
application/x-sh sh
application/x-shar shar
application/x-shockwave-flash swf
application/x-stuffit sit
application/x-sv4cpio sv4cpio
application/x-sv4crc sv4crc
application/x-tar tar
application/x-tcl tcl
application/x-tex tex
application/x-texinfo texinfo texi
application/x-troff t tr roff
application/x-troff-man man
application/x-troff-me me
application/x-troff-ms ms
application/x-ustar ustar
application/x-wais-source src
application/x400-bp
application/xml
application/zip zip
audio/32kadpcm
audio/basic au snd
audio/midi mid midi kar
audio/mpeg mpga mp2 mp3
audio/vnd.qcelp
audio/x-aiff aif aiff aifc
audio/x-pn-realaudio ram rm
audio/x-pn-realaudio-plugin rpm
audio/x-realaudio ra
audio/x-wav wav
chemical/x-pdb pdb xyz
image/cgm
image/g3fax
image/gif gif
image/ief ief
image/jpeg jpeg jpg jpe
image/naplps
image/png png
image/prs.btif
image/tiff tiff tif
image/vnd.dwg
image/vnd.dxf
image/vnd.fpx
image/vnd.net-fpx
image/vnd.svf
image/vnd.xiff
image/x-cmu-raster ras
image/x-portable-anymap pnm
image/x-portable-bitmap pbm
image/x-portable-graymap pgm
image/x-portable-pixmap ppm
image/x-rgb rgb
image/x-xbitmap xbm
image/x-xpixmap xpm
image/x-xwindowdump xwd

message/delivery-status
message/disposition-notification
message/external-body
message/http
message/news
message/partial
message/rfc822
model/iges igs iges
model/mesh msh mesh silo
model/vnd.dwf
model/vrml wrl vrml
multipart/alternative
multipart/appledouble
multipart/byteranges
multipart/digest
multipart/encrypted
multipart/form-data
multipart/header-set
multipart/mixed
multipart/parallel
multipart/related
multipart/report
multipart/signed
multipart/voice-message
text/css css
text/directory
text/enriched
text/plain asc txt
text/prs.lines.tag
text/rfc822-headers
text/richtext rtx
text/rtf rtf
text/sgml sgml sgm
text/tab-separated-values tsv
text/uri-list
text/vnd.abc
text/vnd.flatland.3dml
text/vnd.fmi.flexstor
text/vnd.in3d.3dml
text/vnd.in3d.spot
text/vnd.latex-z
text/x-setext etx
text/xml xml
video/mpeg mpeg mpg mpe
video/quicktime qt mov
video/vnd.motorola.video
video/vnd.motorola.videop
video/vnd.vivo
video/x-msvideo avi
video/x-sgi-movie movie
x-conference/x-cooltalk ice
text/html html htm