PHP Echo() Function - W3Schools

Trang chủ » E Echo Php » PHP Echo() Function - W3Schools

Có thể bạn quan tâm

PHP echo() Function

❮ PHP String Reference

Example

Write some text to the output:

<?php echo "Hello world!"; ?> Try it Yourself »

Definition and Usage

The echo() function outputs one or more strings.

Note: The echo() function is not actually a function, so you are not required to use parentheses with it. However, if you want to pass more than one parameter to echo(), using parentheses will generate a parse error.

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

Tip: The echo() function also has a shortcut syntax. Prior to PHP 5.4.0, this syntax only works with the short_open_tag configuration setting enabled.

Syntax

echo(strings)

Parameter Values

Parameter Description
strings Required. One or more strings to be sent to the output

Technical Details

Return Value: No value is returned
PHP Version: 4+

More Examples

Example

Write the value of the string variable ($str) to the output:

<?php $str = "Hello world!"; echo $str; ?> Try it Yourself »

Example

Write the value of the string variable ($str) to the output, including HTML tags:

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

Example

Join two string variables together:

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

Example

Write the value of an array to the output:

<?php$age=array("Peter"=>"35");echo "Peter is " . $age['Peter'] . " years old.";?> Try it Yourself »

Example

Write some text to the output:

<?php echo "This text spans multiple lines."; ?> Try it Yourself »

Example

How to use multiple parameters:

<?php echo 'This ','string ','was ','made ','with multiple parameters.'; ?> Try it Yourself »

Example

Difference of single and double quotes. Single quotes will print the variable name, not the value:

<?php $color = "red"; echo "Roses are $color"; echo "<br>"; echo 'Roses are $color'; ?> Try it Yourself »

Example

Shortcut syntax (will only work with the short_open_tag configuration setting enabled):

<?php $color = "red"; ?> <p>Roses are <?=$color?></p> Try it Yourself » ❮ PHP String Reference ★ +1 Track your progress - it's free! Log in Sign Up

Từ khóa » E Echo Php