How to Use echo in PHP: Simple Syntax and Examples

In PHP, use the echo statement to output text or variables directly to the browser. It is simple to use by writing echo followed by the text or variable you want to display, ending with a semicolon.

Syntax

The basic syntax of echo is simple. You write echo followed by the text or variable you want to show. You can use quotes for strings and separate multiple items with commas.

• echo: The command to output content.
• Text or variables: What you want to display.
• Semicolon (;): Ends the statement.

php

echo "Hello, world!";
echo $name;
echo "Hello", " ", "world!";

Example

This example shows how to use echo to print a simple message and a variable's value.

php

<?php
$name = "Alice";
echo "Hello, world!"; // prints Hello, world!
echo "\n"; // new line for clarity
echo "Hello, ", $name, "!"; // prints Hello, Alice!
?>

Output

Hello, world!
Hello, Alice!

Common Pitfalls

Some common mistakes when using echo include forgetting the semicolon, mixing quotes incorrectly, or trying to use parentheses like a function.

Remember, echo is a language construct, not a function, so parentheses are optional but can cause confusion.

php

<?php
// Wrong: missing semicolon
// echo "Hello world"

// Wrong: mixing quotes
// echo 'Hello" world';

// Right: correct quotes and semicolon
echo "Hello world";

// Right: parentheses optional
echo("Hello again");

Quick Reference

Usage	Description	Example
Output string	Prints text to the screen	echo "Hello!";
Output variable	Prints variable value	echo $name;
Multiple items	Prints several items separated by commas	echo "Hi", " ", $name;
With parentheses	Optional parentheses around items	echo("Hello");

Key Takeaways

Use echo to output text or variables in PHP.

Always end echo statements with a semicolon.

You can output multiple items separated by commas without concatenation.

echo is a language construct, so parentheses are optional.

Be careful with quotes and syntax to avoid errors.