Output in PHP

The output of a PHP processor is (X)HTML code. There are multiple ways to output information onto the web document. One way is to use echo statement with or without parentheses as shown below:

echo(“Hello World”);

Second way is by using print statement with or without parentheses as shown below:

print(“This is PHP”);

The difference between echo and print are: echo doesn’t return anything while print returns 1. So print can be used in expressions. echo can accept multiple arguments while print accepts only one argument. Also echo is faster than print.

Third way is by using the printf function. The syntax of this function is given below:

printf(literal_string, param1, param2,….);

Below is an example which demonstrates echo, print and printf statements:

<?php
   $a = 10;
   $b = 20;
   $sum = $a + $b;
   echo("Sum of $a and $b is: $sum <br />");
   print("Sum of $a and $b is: $sum <br />");
   printf("Sum of %d and %d is: %d", $a, $b, $sum);
?>

Suryateja Pericherla

Suryateja Pericherla, at present is a Research Scholar (full-time Ph.D.) in the Dept. of Computer Science & Systems Engineering at Andhra University, Visakhapatnam. Previously worked as an Associate Professor in the Dept. of CSE at Vishnu Institute of Technology, India.

He has 11+ years of teaching experience and is an individual researcher whose research interests are Cloud Computing, Internet of Things, Computer Security, Network Security and Blockchain.

He is a member of professional societies like IEEE, ACM, CSI and ISCA. He published several research papers which are indexed by SCIE, WoS, Scopus, Springer and others.