... be used together to design some basic tools that are quite new to Internet applications but have been accessible to desktop applications for ages The ability to make a call to the server without ... simply by querying the community 25 6676CH03.qxd 26 9 /27 /06 2: 49 PM Page 26 CHAPTER ■ PHP AND AJAX To summarize why PHP and Ajax work so well together, it comes down to mere functionality PHP is ... is passed to the function Figure 2- 2 An Ajax-based application in full effect Note the address bar, which shows whether you have refreshed the page as you navigate 23 6676CH 02. qxd 24 9 /27 /06 11:51...
... Consider the following code to insert eight random words into your block table: INSERT INSERT INSERT INSERT INSERT INSERT INSERT INSERT INTO INTO INTO INTO INTO INTO INTO INTO block block block block ... to get along with your applications 6676CH03.qxd 9 /27 /06 2: 49 PM Page 41 CHAPTER ■ PHP AND AJAX Figure 3 -2 Auto-complete makes data entry seamless and effective Form Validation I won’t get too ... have a valid table set up and information stored within that table, it is time to work with Ajax and PHP to perform a query to the database dynamically and without any page refreshing Ajax functionality...
... actual tasks to the database 65 6676CH04.qxd 9 /27 /06 11:53 AM Page 66 6676CH05.qxd 9 /27 /06 12: 12 PM CHAPTER Page 67 Forms I n the last chapter, you learned how to retrieve data from a MySQL database ... allows you to check a box to make a selection hidden This element allows you to pass along information to the form without showing the value to the user image This element performs similarly to a submit ... and then passed to said script with little to no interaction necessary on the part of the developer Submitting a form via Ajax and then passing the values to a selected script is a touch more complicated,...
... developers and hobbyists alike The problem with something like a photo gallery is that it has all been done before Therefore, when envisioning what I wanted towith a photo gallery, I brainstormed ... the next one Therefore, I turned to JavaScript and Ajax to provide the required functionality 101 6676CH07.qxd 1 02 9 /27 /06 11:56 AM Page 1 02 CHAPTER ■ A REAL-WORLD AJAX APPLICATION The Code Let’s ... xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState == && xmlhttp.status == 20 0) { 103 6676CH07.qxd 104 9 /27 /06 11:56 AM Page 104 CHAPTER ■ A REAL-WORLD AJAX APPLICATION obj.innerHTML = xmlhttp.responseText;...
... can use to make the job easier 123 6676CH08.qxd 124 9 /27 /06 11:57 AM Page 124 CHAPTER ■ ERGONOMIC DISPLAY When to Use Ajax Ajax is not the most efficient or effective technique to use with all ... Figure 8 -2 depicts the site with the top navigation and side navigation being Ajax-enabled (which works well in this case due to the way the site is laid out), 125 6676CH08.qxd 126 9 /27 /06 11:57 ... (in_array($pic, $imgarr)) { $path = $GLOBALS['imagesfolder'] '/' $pic; 121 6676CH07.qxd 122 9 /27 /06 11:56 AM Page 122 CHAPTER ■ A REAL-WORLD AJAX APPLICATION $succ = unlink($path); } ?>
... locname="Marlborough Mall" address=" 124 0 - 3800 Memorial Dr NE" city="Calgary" province="Alberta" postal="T2A 2K2" /> 161 6676CH10.qxd 1 62 9 /27 /06 11:59 AM Page 1 62 CHAPTER 10 ■ SPATIALLY ENABLED WEB APPLICATIONS ... (www.chicagocrime.org) As you can see in Figure 10- 2, Google’s satellite photography covers the whole world, allowing you to zoom right in to see street level, or zoom out to see the bigger picture You can ... postal="T2Z 4J2" /> When the sample10_1.php file is loaded into your web browser, you will see something very similar to what is shown in Figure 10- 4 Here you can see the Google Map, with...
... entered is not valid'); return false; } 20 1 6676CH 12. qxd 20 2 9 /27 /06 12: 00 PM Page 20 2 CHAPTER 12 ■ SECURITY return true; } Let’s say you wanted to protect the logic behind the isValidEmail() ... replaces each tag with a safe HTML tag (which will never have dangerous attributes in it, as the tags will be hardcoded to be clean) 191 6676CH 12. qxd 1 92 9 /27 /06 12: 00 PM Page 1 92 CHAPTER 12 ■ SECURITY ... server side when it is submitted 20 3 6676CH 12. qxd 20 4 9 /27 /06 12: 00 PM Page 20 4 CHAPTER 12 ■ SECURITY Summary As just shown, there are several security issues to consider when implementing your...
... be used together to design some basic tools that are quite new to Internet applications but have been accessible to desktop applications for ages The ability to make a call to the server without ... simply by querying the community 25 6676CH03.qxd 26 9 /27 /06 2: 49 PM Page 26 CHAPTER ■ PHP AND AJAX To summarize why PHP and Ajax work so well together, it comes down to mere functionality PHP is ... is passed to the function Figure 2- 2 An Ajax-based application in full effect Note the address bar, which shows whether you have refreshed the page as you navigate 23 6676CH 02. qxd 24 9 /27 /06 11:51...