Wamp Server For Php 5.3.8

Simple AJAX Commenting System Tutorialzine. This time, we are making a Simple AJAX Commenting System. Wamp Server For Php 5.3.8' title='Wamp Server For Php 5.3.8' />Voil, je suis sous mac OSX 10. Apache2. 0. 52 Unix PHP4. MYSQL 4. 0. 17. Tout allait bien sous phpmyadmin, puis jai suivi un conseil lcran qui me. It will feature a gravatar integration and demonstrate how to achieve effective communication between j. Query and PHPMy. SQL with the help of JSON. Note This tutorial is quite old and doesnt work in PHP7 and above. We are keeping it online only as a reference. Step 1 XHTMLFirst, lets take a look at the markup of the comments. This code is generated by PHP in the Comment class, which we are going to take a look at in a moment. A2. F2. Fdemo. tutorialzine. F2. 01. 02. F0. 62. Fsimple ajax commenting system2. Fimg2. Fdefaultavatar. Persons Namelt a lt div. Added at 0. 6 4. Jun 2. Jun 2. 01. 0lt div. Comment Bodylt p. The avatar div contains a hyperlink if the user entered a valid URL when submitting the comment and an avatar image, which is fetched from gravatar. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get. YDELz.png' alt='Wamp Server For Php 5.3.8' title='Wamp Server For Php 5.3.8' />We will return to this in the PHP step of the tut. Lastly we have the name and time divs, and the comment body. The other important element in the XHTML part is the comment form. It is sent via POST. All fields except for the URL field are required. Comment. Container. Add a Commentlt p. Comment. Form methodpost action. Your Namelt label. Your Emaillt label. Website not requiredlt label. Comment Bodylt label. Submit. lt div. The form is submitted via AJAX. The validation is performed entirely in the backend by submit. Query step of the tutorial. Every field has a corresponding label element, with an appropriate for attribute. Step 2 PHPPHP handles the communication with the My. SQL database and generates the markup of the comments. It is also on the receiving end of the AJAX requests and inserts the comment data to the comments table. You can see the code that prints the comments to the page below. Select all the comments and populate the comments array with objects. SELECT FROM comments ORDER BY id ASC. Commentrow. The My. SQL query selects all the entries from the database and fills the comments array with objects of the comment class, which you will see below. This array is outputted later in the execution of the script. Output the comments one by one. Each comment has a markup method, which generates valid HTML code ready to be printed to the page. You can see the definition of this method and the class below. The class takes a row from the database fetched with mysqlfetchassoc and stores it in the private variable data. It is available only to the methods of the class and cannot be accessed from outside. Part 1class Comment. The constructor. this data row. This method outputs the XHTML markup of the comment. Setting up an alias, so we dont have to write this data every time. If the person has entered a URL when adding a comment. Casas Muertas De Miguel Otero Silva Pdf. Converting the time to a UNIX timestamp. Needed for the default gravatar image. SERVERSERVERNAME. SERVERREQUESTURI. Added at. dateH i on d M Y,ddt. M Y,ddt. lt div. This script uses gravatar to present avatars in the comments. For those of you, who have not used gravatar, this is a really useful service, which lets you associate an avatar with your email address. The avatar image can easily be fetched by passing an md. This is exactly what we do on line 4. Notice line 3. 9 above it the script tries to figure out the URL at which it is located, and determines the exact address of the defaultavatar. This gif is passed to gravatar along the md. Part 2 public static function validate arr. Network Monitor Software there. This method is used to validate the data sent via AJAX. It return truefalse depending on whether the data is valid, and populates. Using the filterinput function introduced in PHP 5. INPUTPOST,email,FILTERVALIDATEEMAIL. Please enter a valid Email. INPUTPOST,url,FILTERVALIDATEURL. If the URL field was not populated with a valid URL. URL was entered at all. Using the filter with a custom callback function. INPUTPOST,body,FILTERCALLBACK. Comment validatetext. Please enter a comment body. INPUTPOST,name,FILTERCALLBACK. Comment validatetext. Please enter a name. If there are errors, copy the errors array to arr. If the data is valid, sanitize all the data and copy it to arr. Ensure that the email is in lower case for a correct gravatar hash. The validate method above also part of the class is defined as static. This means that it can be evoked directly like Comment validate, without the need of creating an object of the class. What this method does, is validate the input data which is submitted via AJAX. This method uses the new filter functions, which are available as of PHP 5. These allow us to easily validate and filter any input data that is passed to the script. For example filterinputINPUTPOST,url,FILTERVALIDATEURL means that we are checking whether POSTurl is a valid URL address. If it is, the function returns the value of the variable, otherwise it return false. This is really useful, as up until now, we had to use custom regular expressions to validate data and have series of if statements. Also, another advantage is that this data is fetched before any configuration specific transformations like magic quotes are applied. We also have the option of specifying a custom function which is going to apply some more advanced modifications of the data, as you can see from lines 3. Part 3 private static function validatetextstr. This method is used internally as a FILTERCALLBACK. Encode all html special characters lt, ,. Remove the new line characters that are left. Microsoft Visual Studio 2008 Enu Product Family Value. The last method is validatetext, which we are passing as a callback function in the two filterinput calls above. It encodes all special HTML characters, effectively blocking XSS attacks. It also replaces the newline characters with lt br line breaks. This array is going to be populated with either. Comment validatearr. Everything is OK, insert to database. INSERT INTO commentsname,url,email,body. VALUES. arrname. The data in arr is escaped for the mysql insert query. Comment new Commentarr. Outputting the markup of the just inserted comment. Comment markup. Outputting the error messages. AJAX request. It validates it and outputs a JSON object with either the XHTML markup of the successfully inserted comment, or a list of error messages. Query uses the status property to determine whether to display the error messages or add the comment markup to the page. You can see two example responses below. Successful response. Html Code Of The Comment Comes Here. The html property contains the code of the comment, similar to markup in step one. Failure response. Please enter a valid Email. Please enter a comment body. Please enter a name. On failure, j. Query loops through the errors object, and outputs the errors next to the fields that caused them. Step 3 CSSNow that we have all the markup properly generated and displayed on the page, we can move on to styling it. Part 1. comment. add. Comment. Container. Syling the comments and the comment form container. CSS3 rounded corners and drop shadows. The avatar is positioned absolutely. Centering it vertically. The. comment divs and the add. Comment. Container are styled at once because they share most of the styling. A number of CSS3 rules are applied, including rounded corners and a box shadow.