PHP `echo` 📢

PHP echo is a language construct, not a function. This means you don’t need to use parentheses with it, though if you want to use multiple parameters, parentheses are required.

Syntax of PHP echo:

void echo ( string $arg1 [, string $... ] )

The echo statement is used to print strings, multi-line strings, escape characters, variables, arrays, etc. Here are some important things you should know about it:

• echo is a statement, used to display output.
• You can use echo with or without parentheses: echo() and echo.
• echo does not return any value.
• You can pass multiple strings separated by a comma (,).
• echo is faster than the print statement. ⚡

PHP echo: Printing a String 📝

File: echo1.php

<?php  
echo "Hello by PHP echo";  
?>  

Output:

Hello by PHP echo

PHP echo: Printing a Multi-line String 📃

File: echo2.php

<?php  
echo "Hello by PHP echo  
this is multi line  
text printed by   
PHP echo statement  
";  
?>  

Output:

Hello by PHP echo this is multi line text printed by PHP echo statement

Notice how the newlines in the code are ignored by the echo statement, and the entire content is printed on a single line. 😅

PHP echo: Printing Escape Characters 🧳

File: echo3.php

<?php  
echo "Hello escape \"sequence\" characters";  
?>  

Output:

Hello escape "sequence" characters

The escape character \" allows you to print the double quotes " inside the string. 🎯

PHP echo: Printing Variable Values 🏷️

File: echo4.php

<?php  
$msg = "Hello JavaTpoint PHP";  
echo "Message is: $msg";    
?>  

Output:

Message is: Hello JavaTpoint PHP

This example demonstrates how echo prints the value of a variable. In this case, it outputs the content of the $msg variable. 🤖