How to upload image to database in php? - php

Question

here i am trying to upload image to directory and add the path in database.
here i am first adding some product details and trying to upload the image to uploads directory and add the uploaded image path in database.
here is what i have done:
<?php
/* Attempt MySQL server connection. Assuming you are running MySQL
server with default setting (user 'root' with no password) */
$link = mysqli_connect("localhost", "root", "", "wan_products_box");
// Check connection
if($link === false){
die("ERROR: Could not connect. " . mysqli_connect_error());
}
// Escape user inputs for security
$product_name = mysqli_real_escape_string($link, $_POST['product_name']);
$product_category = mysqli_real_escape_string($link, $_POST['product_category']);
$product_price = mysqli_real_escape_string($link, $_POST['product_price']);
$pro_url = mysqli_real_escape_string($link, $_POST['pro_url']);
$co_owners = mysqli_real_escape_string($link, $_POST['co_owners']);
// attempt insert query execution
$sql = "INSERT INTO product_list (product_name, product_category, product_price,product_referrence_URL,product_co_owners) VALUES ('$product_name', '$product_category', '$product_price', '$pro_url', '$co_owners')";
if(mysqli_query($link, $sql)){
echo "New product created.";
} else{
echo "ERROR: Could not able to execute $sql. " . mysqli_error($link);
}
//image upload code
if($_POST)
{
if($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
}
else
{
if(file_exists("uploaded_images/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
if(move_uploaded_file($_FILES["file"]["tmp_name"],"uploaded_images/" . $_FILES["file"]["name"]))
{
$query_image = "INSERT INTO product_list (product_image_url) values ('".$_FILES['file']['name']."')";
if(mysql_query($query_image))
{
echo "Stored in: " . "uploaded_images/" . $_FILES["file"]["name"];
}
else
{
echo 'Unable to store';
}
}
}
}
}
mysqli_close($link);
?>
this is my html form:
<div id="menu2" class="tab-pane fade">
<h4>Add new product</h4>
<div class="col-xs-12 col-sm-12 col-md-12 col-lg-12">
<div class="panel panel-default">
<div class="panel-body">
<form class="form-horizontal" method="post" action="files/insert.php" role="form">
<div class="form-group">
<label class="control-label col-sm-2" for="product_name">Product Name</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="product_name" id="product_name" placeholder="Iphone 5c" required>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="pwd">Product Category</label>
<div class="col-sm-10">
<select class="btn-btn-primary form-control" name="product_category">
<option>Mobile</option>
<option>Television</option>
<option>Printer</option>
<option>Watch</option>
<option>Monitor</option>
</select>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="product-pic">Upload your profile picture</label>
<div class="col-sm-10">
<input type="file" class="form-control" name="file" id="file" />
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="product_price">Product Price</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="product_price" id="product_price" placeholder="Rs.36,000" required>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="pro_url">Reference URL</label>
<div class="col-sm-10">
<input type="URL" class="form-control" name="pro_url" id="pro_url" placeholder="http://www.amazon.com" required>
</div>
</div>
<div class="form-group">
<label class="control-label col-sm-2" for="co_owners">Co-owners</label>
<div class="col-sm-10">
<select class="btn-btn-primary form-control" name="co_owners">
<option>Select no. owners</option>
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
<option>5</option>
<option>6</option>
<option>7</option>
<option>8</option>
<option>9</option>
<option>10</option>
<option>11</option>
<option>12</option>
<option>13</option>
<option>14</option>
<option>15</option>
</select>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button type="submit" class="btn btn-success">Add product</button>
</div>
</div>
</form>
</div>
</div>
</div>
</div>
the data is inserted to database but the image upload part is not happening...
how can i do this? how can i modify the code to upload the image to database and add path to database?
when i run this the output i get is
New product created.
Notice: Undefined index: file in D:\xampp\htdocs\wan\files\insert.php on line 31
Notice: Undefined index: file in D:\xampp\htdocs\wan\files\insert.php on line 37
Notice: Undefined index: file in D:\xampp\htdocs\wan\files\insert.php on line 43
Notice: Undefined index: file in D:\xampp\htdocs\wan\files\insert.php on line

Answer 1

There are a few things wrong in your code.
Firstly, your form is missing a valid enctype enctype="multipart/form-data" it is required when dealing with files.
http://php.net/manual/en/features.file-upload.post-method.php
You're also mixing MySQL APIs in your second query.
$query_image = "INSERT INTO product_list (product_image_url) values ('".$_FILES['file']['name']."')";
if(mysql_query($query_image))
So it will fail.
Use the same method you used in your first query.
Those different APIs do not intermix.
So change that to if(mysqli_query($link, $query_image))
Also add or die(mysqli_error($link)) to mysqli_query() to check for errors.
Also make sure the folder has proper permissions to be written to.
Another thing, your <select>'s options have no values
<option>Select no. owners</option>
<option>1</option>
...
You need to add those
<option value="empty_value">Select no. owners</option>
<option value="1">1</option>
...
and do the same for the others.
Same thing for <option>Mobile</option>. There should be values for those too.
<option value="mobile">Mobile</option>
...
You will not get anything entered in your database for those.

Answer 2

Apart from the problems in HTML part like the lack of enctype="multipart/form-data". There is a problem in your second Query and this is the cause of these errors:
$query_image = "INSERT INTO product_list (product_image_url) values ('".$_FILES['file']['name']."')";
You need to change this to an UPDATE query and update the already created row in database.
Also it is a better approach to use the row's index number for the image name.