PHP Tutorial Part 5 : PHP - echo and print Statements

 PHP echo and print Statements

We frequently use the echo statement to display the output. There are two basic ways to get the output in PHP:

• echo
• print

echo and print are language constructs, and they never behave like a function. Therefore, there is no requirement for parentheses. However, both statements can be used with or without parentheses. We can use these statements to output variables or strings.

Difference between echo and print

echo

• echo is a statement, which is used to display the output.
• echo can be used with or without parentheses.
• echo does not return any value.
• We can pass multiple strings separated by comma (,) in echo.
• echo is faster than a print statement.

print

• the print is also a statement, used as an alternative to echo many times to display the output.
• print can be used with or without parentheses.
• print always returns an integer value, which is 1.
• Using print, we cannot pass multiple arguments.
• the print is slower than the echo statement.
• You can see the difference between echo and print statements with the help of the following programs.

For Example (Check multiple arguments)

You can pass multiple arguments separated by a comma (,) in echo. It will not generate any syntax error.

<?php  

     $fname = "Online";  

     $lname = "QuizStock";  

     echo "My name is: ".$fname,$lname;  

?>  

Output:

My name is: OnlineQuizStock

It will generate a syntax error because of multiple arguments in a print statement.

<?php  

     $fname = "Online";  

     $lname = "QuizStock";  

     print "My name is: ".$fname,$lname;  

?>  

Output:

Parse error: syntax error, unexpected ',' in D:\xampp\htdocs\p1\.php on line 6

For Example (Check Return Value)

echo statement does not return any value. It will generate an error if you try to display its return value.

<?php  

     $lang = "PHP";  

     $ret = echo $lang." is a web development language.";  

     echo "</br>";  

     echo "Value return by print statement: ".$ret;   

?>  

Output:

Parse error: syntax error, unexpected 'echo' (T_ECHO) in D:\xampp\htdoes\p1.php on line 4

As we already discussed that print returns a value, which is always 1.

<?php  

     $lang = "PHP";  

     $ret = print $lang." is a web development language.";  

     print "</br>";  

print "Value return by print statement: ".$ret;   

?>  

Output:

PHP is a web development language.

Value return by print statement: 1