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PHP - Base64-Bildstringdecodierung erhalten und als jpg speichern (resultierendes leeres Bild)

hallo, ich schicke eigentlich eine base64-Bildzeichenfolge durch Ajax an ein PHP-Skript, das nur die Zeichenfolge dekodiert und den Inhalt als JPG-Datei speichert.

Das Ergebnis ist jedoch ein leeres Bild.

Wie kann das möglich sein?

pHP-Skript:

$uploadedPhotos = array('photo_1','photo_2','photo_3','photo_4');
            foreach ($uploadedPhotos as $file) {
                if($this->input->post('photo_1')){
                     $photoTemp = base64_decode($this->input->post('photo_1'));


                    /*Set name of the photo for show in the form*/
                    $this->session->set_userdata('upload_'.$file,'ant');
                    /*set time of the upload*/
                    if(!$this->session->userdata('uploading_on_datetime')){
                     $this->session->set_userdata('uploading_on_datetime',time());
                    }
                     $datetime_upload = $this->session->userdata('uploading_on_datetime',true);
                    /*create temp dir with time and user id*/
                    $new_dir = 'temp/user_'.$this->session->userdata('user_id',true).'_on_'.$datetime_upload.'/';
                    @mkdir($new_dir);
                    /*move uploaded file with new name*/
                    @file_put_contents( $new_dir.$file.'.jpg',$photoTemp);


            }

Für Ajax ist dies in Ordnung, da echo $ photoTemp die Zeichenfolge zurückgibt.

ich habe var_dump(@file_put_contents( $new_dir.$file.'.jpg',$photoTemp)); ausprobiert und es wird bool(true) zurückgegeben, da das Bild gespeichert wird, das Bild jedoch keinen Inhalt enthält :( leeres Bild

für ein leeres Bild meine ich, dass die Datei erstellt und benannt wird und dieselbe Größe des Inhalts, den ich an PHP übergebe, aber wenn ich versuche, das Bild zu öffnen, __. Um eine Vorschau anzuzeigen, kann die Datei nicht geöffnet werden, da das Dateiformat beschädigt oder fehlerhaft ist 

jedenfalls ist dies die JS, die ein Foto als base64 erstellt und an php sendet:

<script type="text/javascript">

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 > 3145728 /*3MB*/){
        notify("<?php echo lang('each-photo-1MB'); ?>",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 < _min_width || img.height < _min_height ){
        notify("<?php echo lang('each-photo-1MB'); ?>",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('<img src="'+d+'"/>');
            }
         });


    });

}
}
</script>
13
bombastic

AFAIK, Sie müssen die Image-Funktion imagecreatefromstring, imagejpeg verwenden, um die Bilder zu erstellen.

$imageData = base64_decode($imageData);
$source = imagecreatefromstring($imageData);
$rotate = imagerotate($source, $angle, 0); // if want to rotate the image
$imageSave = imagejpeg($rotate,$imageName,100);
imagedestroy($source);

Hoffe das wird helfen.

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);

Folgend ist der PHP-Teil Ihres Programms. NOTE die Änderung mit Kommentar Change is here

    $uploadedPhotos = array('photo_1','photo_2','photo_3','photo_4');
     foreach ($uploadedPhotos as $file) {
      if($this->input->post($file)){                   
         $imageData = base64_decode($this->input->post($file)); // <-- **Change is here for variable name only**
         $photo = imagecreatefromstring($imageData); // <-- **Change is here**

        /* Set name of the photo for show in the form */
        $this->session->set_userdata('upload_'.$file,'ant');
        /*set time of the upload*/
        if(!$this->session->userdata('uploading_on_datetime')){
         $this->session->set_userdata('uploading_on_datetime',time());
        }
         $datetime_upload = $this->session->userdata('uploading_on_datetime',true);

        /* create temp dir with time and user id */
        $new_dir = 'temp/user_'.$this->session->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); // <-- **Change is here**

      }
    }
26
Yogesh
$data = 'data:image/png;base64,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';

$data = str_replace('data:image/png;base64,', '', $data);

$data = str_replace(' ', '+', $data);

$data = base64_decode($data);

$file = 'images/'.Rand() . '.png';

$success = file_put_contents($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);
9
naresh

Hier ist was für mich endlich funktioniert. Sie müssen den Code nach Ihren eigenen Bedürfnissen konvertieren, aber dies wird es tun.

$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!";
6

Bild decodieren und als PNG speichern

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 "<img src=$base64 />" ;


        ob_end_flush();
1
milind Morey

Eine kleine Vereinfachung am Beispiel von @naresh. Sollte sich mit Erlaubnisproblemen befassen und Klarstellung bieten.

$data = '<base64_encoded_string>';

$data = base64_decode($data);

$img = imagecreatefromstring($data);

header('Content-Type: image/png');

$file = '<path_to_home_or_user_directory>/decoded_images/test.png';

imagepng($img, $file);

imagedestroy($img);
0
Deci

Der Client muss base64 an den Server senden.

Und der oben beschriebene Antwort Code funktioniert einwandfrei:

$imageData = base64_decode($imageData);
$source = imagecreatefromstring($imageData);
$rotate = imagerotate($source, $angle, 0); // if want to rotate the image
$imageSave = imagejpeg($rotate,$imageName,100);
imagedestroy($source);

Vielen Dank

0
Dhiraj