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again, PHP is a server-side script linguistic process. That means a PHP script is executed on the waiter, the output is built on the server, and the result is sent as HTML to the customer browser for rendering. It ‘s natural to mix PHP and HTML in a handwriting, but as a novice, it ’ second catchy to know how to combine the PHP code with the HTML code .
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Reading: How to Use PHP in HTML
PHP
PHP Fundamentals
Jeremy McPeak
today, we ’ re going to discuss a couple of unlike ways you could choose from when you want to use PHP in HTML. I assume that you have a working installation of PHP so that you can run the examples provided in this article .
Different Ways to Combine PHP and HTML
broadly speaking, when it comes to using PHP in HTML, there are two different approaches. The beginning is to embed the PHP code in your HTML file itself with the .html extension—this requires a especial consideration, which we ’ ll hash out in a here and now. The other option, the preferable room, is to combine PHP and HTML tags in .php files .
Since PHP is a server-side script language, the code is interpreted and run on the server side. For case, if you add the follow code in your index.html file, it won ’ metric ton run out of the box .
First of all, don ’ deoxythymidine monophosphate concern if you haven ’ thymine seen this kind of interracial PHP and HTML code earlier, as we ’ ll discus it in detail throughout this article. The above model outputs the following in your browser :
sol as you can see, by nonpayment, PHP tags in your .html text file are not detected, and they ‘re just considered knit text, outputting without parsing. That ‘s because the server is normally configured to run PHP alone for files with the .php extension .
If you want to run your HTML files as PHP, you can tell the waiter to run your .html files as PHP files, but it ‘s a much better estimate to put your blend PHP and HTML code into a file with the .php extension .
That ‘s what I ‘ll show you in this tutorial .
How to Add PHP Tags in Your HTML Page
When it comes to integrating PHP code with HTML content, you need to enclose the PHP code with the PHP startle rag and the PHP end tag ?>. The code wrapped between these two tags is considered to be PHP code, and thus it'll be executed on the server side before the requested file is sent to the client browser.
Let ’ s have a look at a very simple exercise, which displays a message using PHP code. Create the index.php file with the following contents under your document rout .
The important thing in the above example is that the PHP code is wrapped by the PHP tags .
The output of the above example looks like this :
And, if you look at the page source, it should look like this :
As you can see, the PHP code is parsed and executed on the server slope, and it ‘s merged with HTML before the foliate is sent to the node browser .
Let ’ s have a look at another example :
This will output signal the current date and time, so you can use PHP code between the HTML tags to produce dynamic output from the server. It ’ sulfur important to remember that whenever the page is executed on the server side, all the code between the and ?> tags will be interpreted as PHP, and the output will be embedded with the HTML tags.
In fact, there ’ s another room you could write the above example, as shown in the postdate snip .
In the above case, we ’ ve used the concatenation feature of speech of PHP, which allows you to join unlike strings into one drawstring. And ultimately, we ’ ve used the echo reconstruct to display the concatenate string .
The output is the same regardless of the method you use, as shown in the come screenshot .
And that brings us to another motion : which is the best way ? Should you use the concatenation feature of speech or insert separate PHP rag between the HTML tag ? I would say it actually depends—there ’ south no nonindulgent rule that forces you to use one of these methods. personally, I feel that the proxy method acting is more clear compared to the concatenation method .
The overall social organization of the PHP page combined with HTML and PHP code should look like this :
In the following part, we ’ ll see how you could use PHP loops with HTML .
How to Use PHP Loops in Your HTML Page
Iterating through the arrays to produce HTML content is one of the most coarse tasks you ‘ll encounter while writing PHP scripts. In this part, we ’ ll see how you could iterate through an align of items and generate end product .
In most cases, you ’ ll need to display array capacity which you ’ ve populated from the database or some other sources. In this example, for the sake of chasteness, we ’ ll initialize the array with unlike values at the begin of the script itself .
Go ahead and create a PHP file with the follow contents .
first, we ’ ve initialized the range at the begin of our script. next, we ’ ve used the foreach construct to iterate through the range values. And ultimately, we ’ ve used the echo concept to display the array element value .
And the output should look like this :
The like model with a while loop looks like this :
And the output signal will be the lapp. So that ’ s how you can use foreach and while loops to generate HTML content based on PHP arrays .
In the next section, we ’ ll see how you could use PHP short tag syntax .
How to Use PHP Short Tags
In the examples we ’ ve discussed then far, we ’ ve used the as a starting tag everywhere. In fact, PHP comes with a variation, , which you could use as a short-hand syntax when you want to display a string or value of the variable.
Let ’ s revise the exercise with the short-hand syntax which we discussed earlier .
As you can see, we can omit the echo or print construct while displaying a value by using the shorthand syntax. The shorthand syntax is brusque and clear when you want to display something with echo or print .
So these are different ways you can use to add PHP in HTML contented. As a novice, you can learn from trying different ways to do things, and it ‘s fun besides !
Including Code from Different Files
There are a lot of situations where you need to use the same code on multiple pages of a web site. One such case would be the header and footnote section of a web site. These sections normally contain the lapp HTML throughout the web site .
think of this like moving the common CSS rules of a web site into a stylesheet rather of placing them inside the style tags on individual pages .
There are four functions available in PHP to help you include other files within a PHP file. These are include(), include_once(), require(), and require_once() .
The include() officiate will include and evaluate the specified file and give you a warning if it can not find the file. The require() function does the lapp matter, but it gives you an error rather of a admonitory if the file can not be found .
When working on adult projects, you might unintentionally include the lapp file multiple times. This could cause problems like routine redefinition. One means to avoid these issues is to use the include_once() and require_once() functions in PHP .
Let ‘s function code from a former section to show you how to use these functions. I will be using include() in this case. Create a file called header.php and home the follow code inside it .
Create another file called date.php and place the follow code in it .
Create one more file called day.php and place the play along code in it .
Notice that we have included the path to header.php at the circus tent of both day.php and date.php. Make surely that the three files are in the same directory. Opening up date.php in the browser should now show you the following output .
Opening up day.php should show you the following end product .
As you can see, the code we put inside header.php was included in both our files. This makes network development much easier when you are working with a batch of files. just make the changes in one place, and they will be reflected everywhere.
Conclusion
today, we discussed how you can mix PHP and HTML to create dynamic HTML. We discussed unlike methods, with a handful of examples to see how things work .
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