Manual. Inserting and displaying images in MySQL using PHP | Thinking Out of Box. Well working with images is quite easy task in MySQL using php code. Some years back managing images in relational database is quite complex task as at those times relational databases are able to store only textual data so file path to the images are stored in database and images are stored and retrieved externally. Also special file functions are necessary for retrieving images this way and this approach is system dependent (because of path names used). Nowadays, almost all major DBMS support storing of images directly in database by storing images in the form of binary data. Here, I am explaining the method of storing and retrieving images in MySQL database using PHP code. Inserting images in mysql-: MySQL has a blob data type which can used to store binary data.
All these types differ only in their sizes. For my demonstration, lets us create a test table named test_image in MySQL having 3 columns show below-: PHP code to upload image and store in database-: file_constants.php Like this: Securimage PHP Captcha | Free Captcha Script. PHP File Upload. PHP setcookie() Function. POST & GET. Recall from the PHP Forms Lesson where we used an HTML form and sent it to a PHP web page for processing. In that lesson we opted to use the the post method for submitting, but we could have also chosen the get method. This lesson will review both transferring methods. In our PHP Forms Lesson we used the post method. This is what the pertinent line of HTML code looked like: HTML Code Excerpt: <form action="process.php" method="post"><select name="item"> ...
This HTML code specifies that the form data will be submitted to the "process.php" web page using the POST method. Now that you know about associative arrays, the PHP code from "process.php" should make a litte more sense. PHP Code Excerpt: $quantity = $_POST['quantity']; $item = $_POST['item']; The form names are used as the keys in the associative array, so be sure that you never have two input items in your HTML form that have the same name.
As we mentioned before, the alternative to the post method is get. "? The question mark "? "