How to use php echo function

php The echo function is used to output one or more strings. Its syntax is echo(strings). The parameter strings is required and refers to one or more strings to be sent to the output.

#How to use the php echo function?

Definition and usage

echo() function outputs one or more strings.

Note: The echo() function is not actually a function, so you don't have to use parentheses with it. However, if you want to pass more than one argument to echo(), using parentheses will generate a parsing error.

Tip: The echo() function is slightly faster than print().

Tip: The echo() function also has simplified syntax. Prior to PHP 5.4.0, this syntax only worked if the short_open_tag configuration setting was enabled.

Syntax

echo(strings)

Parameters

strings Required. One or more strings to send to the output.

Return value: No return value.

PHP version: 4

Instance 1

Output the value of the string variable ($str):

<?php
$str = "Hello world!";
echo $str;
?>

Example 2

Output the value of the string variable ($str), including HTML tags:

<?php
$str = "Hello world!";
echo $str;
echo "<br>What a nice day!";
?>

Example 3

Connect two string variables:

<?php
$str1="Hello world!";
$str2="What a nice day!";
echo $str1 . " " . $str2;
?>

Example 4

Output the value of the array:

<?php
$age=array("Peter"=>"35");
echo "Peter is " . $age[&#39;Peter&#39;] . " years old.";
?>

Example 5

Output some text:

<?php
echo "This text
spans multiple
lines.";
?>

Example 6

##How to use multiple parameters:

<?php
echo &#39;This &#39;,&#39;string &#39;,&#39;was &#39;,&#39;made &#39;,&#39;with multiple parameters.&#39;;
?>

Example 7

The difference between single quotes and double quotes. Single quotes will output the variable name, not the value:

<?php
$color = "red";
echo "Roses are $color";
echo "<br>";
echo &#39;Roses are $color&#39;;
?>

Example 8
##Simplified syntax (only applies if the short_open_tag configuration setting is enabled):

<?php
$color = "red";
?>
<p>Roses are <?=$color?></p>

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