PHP may not be perfect, but it should be considered as an option for your next web application. Installing PHP on your development PC allows you to safely create and test websites and applications without affecting the data or systems on your live server. These packages are easy to use, but they may not exactly match your live server.
Installing Apache and PHP manually will help you learn more about the system and configuration options. Microsoft Hyper-V provided in Windows 10 Professional and VirtualBox are free hypervisors which emulate a PC so you can install another operating system. Containers look like full Linux Virtual Machines but are considerably more lightweight. Docker is currently considered the best option for setting up a PHP development environment.
Read our complete guide to setting up a PHP development environment with Docker. PHP provides a built-in web server which can be launched by navigating to a folder and running the PHP executable with an -S parameter to set the localhost port.
This may be adequate for quick tests, but your live server will use Apache or similar web server software. Now try to test your input with a wrong username and password. It should return the desired prompt. After testing, try inputting the correct values. It should lead you to home. Now that were authenticated, let now create our home page home.
Now that we have our home, let's try creating our logout. What we would do is that if the user is logged-out, the user shouldn't access home. So here's the simple syntax to logout. The syntax is simple. Now try refreshing home. Now try clicking on the back button of your browser and see what happens:. As you can see, it doesn't direct you to home. The same case should also happen. Since were logged-out, even a manual input of the address doesn't access an authorized page.
What we have done is a simple security mechanism wherein we redirect back unauthorized users into a public page. In our next step, let's create the adding of items to the list. Take note that this ain't our official add. Now go back to your home. As you can see, we have our current time, date, and your input. Here's the explanation to the code:.
Now let's modify our add. Click here for the complete add. Now try entering some data and click " Add to list ". In my case, I'll just use finish again. Let's go to our phpmyadmin and let's see if the data has been added. Here's the result of my case:. Now that we have seen that the data has been successfully added, let's now display the data in our home page.
Let's modify our home. The explanation to the added code is quite simple. It just basically displays the data coming from the while loop. It has been explained earlier in our tutorial so I believe that by this point, you should have understood the process of getting the data in the query.
Going back to the browser, try refreshing your home. It should now display that data. Next is to update edit and delete information. If you will notice we have edit and delete links displayed on the column. I'll add another data to the list named " tuna " to have another example and this time, it's privacy to no :.
Let's now try editing our data and to do that we will use a new functionality called " GET ". To start of, let's modify our home. If you have noticed, we only added URL parameter for the edit and delete links namely id. We will be using this later to handle thee data. The reason why we use id is because it's a unique identifier. It is possible for the person to have enter the same data so it's not recommended to use the details as a mean for manipulation later on. Try putting your cursor into the edit link and you will see the value of the id on the lower left:.
Now that we have that, let's try creating our edit. Let's try modifying the URL parameter by removing? Now try putting a value that is greater than the id number, in our case, let's try 5 and it should result like this:. Now that we secured our URL parameters, let's now place the edit syntax.
Let's go back to edit. Click here for the complete edit. Now try refreshing and go back to the edit page. Let's try a different data.
In my case, I'll be using " Salmon " and change it to non- public :. Go ahead and click Update list and you should be redirected to home. Now, we have a time and date of edit displayed on the Edit Time column. Our privacy has been set now to non-public and the value has changed into Salmon. Looking back to the CRUD, we have now done creating adding , reading displaying , and updating editing records. Now for the last part, deleting records.
For this part, it's just relatively the same as what we have done on edit but what differs is just the SQL statement. In deleting records, we have to prompt people making sure that they'd really want to delete the record so we will be adding a little JavaScript in home. To do that, let's modify our code and add some in home. I've tried to use Eclipse on Linux but was not able to get it to work after about 4 hours of trying and regressed to just inserting echo comments everywhere like I had been doing.
I'm back on Windows so I need a Window Solution that is hopeufully simple, I'm not lazy - just pressed for time. It would be cool if once javascript passed control to PHP, the debugger just kept stepping into the PHP, but does this even exist?
Those are Firefox and Chrome extensions which allow you to display anything that your PHP script output during runtime in either Firebug needs to be installed in Firefox or native Chrome Developer Tools doesn't require any extension in Chrome. Keep in mind though that they are merely capable of displaying messages from your script and don't offer options such as watches, breakpoints etc. Netbeans for php, Chrome netbeans extension and configure Netbeans to use internal php web server. It runs out of the box.
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