PHP Syntax with examples
A PHP code only runs on a server. While running the PHP code on the server, it will return a plain HTML result on your web browser.
PHP Basic Syntax
<?php
//your code here;
?>
- PHP syntax starts with <?php and end with ?>
- All php codes are terminate with semicolon i.e, (;)
- The extension of PHP file is ".php"
- PHP files contains PHP scripts, plain text, HTML tags, CSS as well as JavaScript.
Example:
<!DOCTYPE html>
<html>
<body>
<h1>Hello BlogLearner</h1>
<?php
echo "Hello World!!!";
?>
</body>
</html>
Output:
Hello BlogLearner
Hello World!!!
Comments Syntax in PHP
There are three ways in which we can use comments in the PHP script. All three ways are explained in the following example.
The comment is the process through which the codes or plane texts are not read at the time of execution of the code.
<!DOCTYPE html>
<html>
<body>
<?php
// Double slash is used as a single-line comment in PHP
# Hash is also used as a single-line comment in PHP
/*
You can also use multi-line comment in PHP which starting with /* and ending with */
*/
// This is a comment
echo "Hello World!!!";
?>
</body>
</html>
Output:
Hello World!!!
PHP is a Case Sensitivity
Example:
<!DOCTYPE html>
<html>
<body>
<?php
$i=true;
if ($i) {
echo "BlogLearner<br>";
}
IF ($i) {
echo "BlogLearner<br>";
}
ECHO "BlogLearner<br>";
echo "BlogLearner<br>";
EcHo "BlogLearner<br>";
?>
</body>
</html>
Output:
BlogLearner
BlogLearner
BlogLearner
BlogLearner
BlogLearner
Screenshots:
Output:
***
What is PHP? || PHP Introduction || PHP Tutorial 1
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