hello world in php

To print "Hello, World!" in PHP, you can use the echo or print statement. Here's how:

main.php
<?php
  echo "Hello, World!"; // Output: Hello, World!
  
  // or

  print "Hello, World!"; // Output: Hello, World!
?>
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Both echo and print statements are used to output data to the screen. However, echo is more commonly used because it's slightly faster and does not return a value, while print returns a value of 1 after it executes.