PHP - get base64 img string decode and save as jpg resulting empty image

Question

hi i m actually sending a base64 image string trough ajax to a php script which just decodes string and save content as  jpg file   But the result is an empty image   How can this be possible   php script    uploadedPhotos   array  photo 1   photo 2   photo 3   photo 4                foreach   uploadedPhotos as  file                    if  this- gt input- gt post  photo 1                           photoTemp   base64 decode  this- gt input- gt post  photo 1                             Set name of the photo for show in the form                        this- gt session- gt set userdata  upload    file  ant                          set time of the upload                       if   this- gt session- gt userdata  uploading on datetime                           this- gt session- gt set userdata  uploading on datetime  time                                                 datetime upload    this- gt session- gt userdata  uploading on datetime  true                         create temp dir with time and user id                        new dir    temp user    this- gt session- gt userdata  user id  true    on    datetime upload                           mkdir  new dir                         move uploaded file with new name                        file put contents   new dir  file   jpg   photoTemp                     For ajax it is ok because  echo  photoTemp returns the string   i tried var dump  file put contents   new dir  file   jpg   photoTemp    and it returns bool true  since the image is saved but there is no content in the image    empty image     for empty image i mean   file is created and named  and it has the same   size of the content i pass to php  but when i try to open that image   to preview it says  file can t be opened because corrupted or bad file type format    anyway this is the JS that takes photo as base64 and send that to php    lt script type  text javascript  gt   var  min width   470  var  min height   330  var  which  var  fyle type  var  io  var allowed types   new Array  image png   image jpg   image jpeg    if  typeof FileReader       function       input type  file     on  change   function e        var  file name     this  val               which   holder   text  file name       var file   e target files 0        if   in array file type allowed types     file length     0           notify  You must select a valid image file   false false            return             if file size  gt  3145728   3MB             notify   lt  php echo lang  each-photo-1MB      gt   false false            return            notify destroy         var reader   new FileReader        reader onload   fileOnload    reader readAsDataURL file          function fileOnload e        var img   document createElement  img        img src   e target result       img addEventListener  load   function             if img width  lt   min width    img height  lt   min height            notify   lt  php echo lang  each-photo-1MB      gt   false false            return                        ajax               type  post               dataType  script               data  photo 1 e target result               url  config base url   upload upload photos               progress function e                   console log e                              success function d                      body   append   lt img src    d     gt                                                lt  script gt

User · Answer

Decode and save image as PNG  header  content-type  image png                ob start              ret   fopen  fullurl   r   true   context            contents   stream get contents  ret            base64    data image PNG base64     base64 encode  contents           echo   lt img src  base64   gt               ob end flush

User · Answer

Client need to send base64 to server   And above answer described code is work perfectly    imageData   base64 decode  imageData    source   imagecreatefromstring  imageData    rotate   imagerotate  source   angle  0      if want to rotate the image  imageSave   imagejpeg  rotate  imageName 100   imagedestroy  source     Thanks

User · Answer

A minor simplification on the example by  naresh  Should deal with permission issues and offer some clarification    data     lt base64 encoded string gt      data   base64 decode  data     img   imagecreatefromstring  data    header  Content-Type  image png      file     lt path to home or user directory gt  decoded images test png    imagepng  img   file    imagedestroy  img

User · Answer

data    data image png base64 iVBORw0KGgoAAAANSUhEUgAAAyAAAADICAYAAAAQj4UaAAAcNUlEQVR4nO3dwW4cR37H8d8jzBsMXyACX4Aw7yawPBhIsDqs3kAEcolPGuQinbI6BMneLCRZ57AwJARLW8hhRcU8xA6QoaVsHGC9kVZrIVl7LYkJVootyf8cukcckjNV1T3VU1Xd3w wBwSSmq4ecrrr3 WvKgkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgKhsLNkHdYxTtwYAAABAb9mWZC8lszq JQkBAAAA0AHblOz5XPIxi9upWwYAAACgV wdyV4tSD6sTkpGqVsIAAAAoBfsnSWJx3xcS91KAAAAAMWzTcleByQgr5gLAgAAAGAFtiXZ wUkH7M4TN1iAAAAAEWycb3CVWjyMYvt1C0HAAAAUBz7tEXyYZJNU7ccAAAAQFFsu2XyMYt3U58BAAAAgGLY0YoJyGsmpAMAAAAIYO86EotfSvZ9YBJyM WZAAAAAMiajT1L7l70JCjz8cWa2z6S7HIdbIoIAAAA5M9uhq1wFVqitbZ2j6rJ7 MT4UlCAAAAgMzZbU9SsVH 3HbgKMjumtq9t DYe s5NgAAAICW7DB8RCNomd7rHbd3VnZ1jwQEAAAAKI4dOJKJZ2d disgAelwT5BzZVdnY7O7YwMAAACIwJ45OvQHC34 pAyro7kYC8uuZnHczTEBAAAARORMJA4X PxBQAKy3VFbbzmOeb bYwIAAACIxDY8icStBf9nEpCATDpq77HjmLe7OSYAAACASLwrWy3YWDBoNayDDtrqm3 yE  YAAAAACKyi55O YUl 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success   file put contents  file   data     data   base64 decode  data      source img   imagecreatefromstring  data     rotated img   imagerotate  source img  90  0      file    images    rand      png     imageSave   imagejpeg  rotated img   file  10    imagedestroy  source img

User · Answer

Here s what finally worked for me   You ll have to convert the code to suit your own needs  but this will do it    fname   filter input INPUT POST   name     img   filter input INPUT POST   image     img   str replace  data image png base64         img    img   str replace            img    img   base64 decode  img    file put contents  fname   img    print  Image has been saved

User · Answer

AFAIK  You have to use image function imagecreatefromstring  imagejpeg to create the images    imageData   base64 decode  imageData    source   imagecreatefromstring  imageData    rotate   imagerotate  source   angle  0      if want to rotate the image  imageSave   imagejpeg  rotate  imageName 100   imagedestroy  source     Hope this will help   PHP CODE WITH IMAGE DATA   imageDataEncoded   base64 encode file get contents  sample png      imageData   base64 decode  imageDataEncoded    source   imagecreatefromstring  imageData    angle   90   rotate   imagerotate  source   angle  0      if want to rotate the image  imageName    hello1 png    imageSave   imagejpeg  rotate  imageName 100   imagedestroy  source     So Following is the php part of your program    NOTE the change with comment Change is here       uploadedPhotos   array  photo 1   photo 2   photo 3   photo 4         foreach   uploadedPhotos as  file          if  this- gt input- gt post  file                                 imageData   base64 decode  this- gt input- gt post  file        lt --   Change is here for variable name only             photo   imagecreatefromstring  imageData       lt --   Change is here               Set name of the photo for show in the form             this- gt session- gt set userdata  upload    file  ant              set time of the upload           if   this- gt session- gt userdata  uploading on datetime               this- gt session- gt set userdata  uploading on datetime  time                         datetime upload    this- gt session- gt userdata  uploading on datetime  true               create temp dir with time and user id             new dir    temp user    this- gt session- gt userdata  user id  true    on    datetime upload              if  is dir  new dir             mkdir  new dir                        move uploaded file with new name                file put contents   new dir  file   jpg  imagejpeg  photo            imagejpeg  photo  new dir  file   jpg  100       lt --   Change is here

[php] PHP - get base64 img string decode and save as jpg (resulting empty image )

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