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POPHP - get base64 img string decode and save as jpg (resulting empty image )
 

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  1. POPHP - get base64 img string decode and save as jpg (resulting empty image )
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    <p>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.</p> <p>But the result is an empty image.</p> <p>How can this be possible?</p> <p>php script:</p> <pre><code>$uploadedPhotos = array('photo_1','photo_2','photo_3','photo_4'); foreach ($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); } </code></pre> <p>For ajax it is ok because, echo $photoTemp returns the string.</p> <p>i tried <code>var_dump(@file_put_contents( $new_dir.$file.'.jpg',$photoTemp));</code> and it returns <code>bool(true)</code> since the image is saved but there is no content in the image :( empty image</p> <blockquote> <p>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 </p> </blockquote> <p>anyway this is the JS that takes photo as base64 and send that to php:</p> <pre><code>&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; </code></pre>
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    1. COBy 'empty image', do you mean the created file is 0 byte size ?
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    2. COPlease show where you are creating the data you upload.
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      1. USAnigel
 

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