PHP Syntax Basics
PHP is a popular server-side scripting language used for creating dynamic web pages and applications. Here is an overview of the basic syntax of PHP:
1. PHP code is embedded in HTML files using special tags. The opening tag is "<?php" and the closing tag is "?>". All PHP code is placed between these tags.
Example:
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<!DOCTYPE html>
<html>
<head>
<title>My PHP Page</title>
</head>
<body>
<?php
// PHP code goes here
?>
</body>
</html>
2. PHP statements are terminated with a semicolon (;) at the end.
Example:
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<?php
$name = "John";
$age = 25;
echo "My name is " . $name . " and I am " . $age . " years old.";
?>
3. Variables in PHP start with the dollar sign ($) followed by the variable name.
Example:
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<?php
$name = "John";
echo $name;
?>
4. Strings in PHP can be enclosed in single quotes (' ') or double quotes (" ").
Example:
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<?php
$name = "John";
echo 'My name is ' . $name;
?>
5. PHP supports several types of operators such as arithmetic, comparison, logical, and assignment operators.
Example:
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<?php
$num1 = 10;
$num2 = 5;
$sum = $num1 + $num2;
echo "The sum of " . $num1 . " and " . $num2 . " is " . $sum;
?>
6. PHP has built-in functions for performing common tasks such as manipulating strings, working with arrays, and performing mathematical operations.
Example:
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<?php
$name = "John Doe";
$length = strlen($name);
echo "The length of the name is " . $length;
?>
These are some of the basic syntax elements of PHP. As you become more familiar with the language, you can learn more advanced syntax for creating complex web applications.
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