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POReading blob data using PHP and JavaScript
 

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  1. POReading blob data using PHP and JavaScript
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    <p>I have an application where a user is allowed to save some text data into a MYSQL database through a web interface. In addition, they can also attach a file to this text and I save this into a blob field. The file types that get attached are simple .txt files.</p> <p>I am able to save this data into the database but I am having trouble retrieving it. This is what I am doing to retrieve it right now:</p> <pre><code>//Events that take place when trying to retreive an attached file function getFile(rowid){ //Make an AJAX Request to fetch the file $.ajax({ type: 'get', url: 'point-of-contact.php', data: 'page=attachment&amp;row='+rowid, dataType: 'text', success: function(data) { console.log (data); } }); } </code></pre> <p>The AJAX request above leads to the following PHP code:</p> <pre><code>$attachments = $poc -&gt; getPOC($_GET['row']); header('Content-type: text/plain'); echo $attachments; </code></pre> <p>The problem I face is that when I console log the data received from the AJAX request I get this:</p> <p><img src="https://i.stack.imgur.com/AEr8H.png" alt="enter image description here"></p> <p>How do I go about getting the data in simple text format?</p> <p>Could it be that the way I am uploading the file to the database is incorrect? This is how the file is uploaded to the DB:</p> <pre><code> //File upload code var fileInput = document.getElementById('upload'); var file = fileInput.files[0]; //Hide the save button $("#save-button-1").hide(); //Make the AJAX request $.ajax({ type: 'post', url: 'point-of-contact.php?page=add', data: 'point_of_contact=' + $("#textarea1").val() + '&amp;point_of_contact_attachment=' + file, success: function(data) { $('#done-1').show(); setTimeout(function() { $('#done-1').fadeOut(); }, 2500); $('.loader').fadeOut(); } }); </code></pre>
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    1. USkarancan
    1. USkarancan
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    1. COWhy not save the attachment in that big database of files (*your filesystem*) and store in MySQL the path at which it can be found? You know, right tool for the right job etc.
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      1. USeggyal
    2. COalso, you should sanetize `$_GET['row']`, so you don't end up getting a SQL injection.
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      1. USdevsnd
    3. CO@twall It is sanitized in my model.
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      1. USkarancan
 

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