if block inside echo statement?

It is not possible to include an "if" block inside an "echo" statement in PHP. "echo" is a language construct used to output a string, whereas an "if" statement is used for control flow. If you want to output a string based on the outcome of an "if" statement, you would need to use the "echo" statement within the code block of the "if" statement.

For example:

<?php

// This is a variable that holds a value
$num = 10;

// This is the if statement
// It checks if the value of $num is greater than 5
// If the condition is true, the code inside the curly braces {} will be executed
if ($num > 5) {
  // This line will only be executed if the condition is true
  echo "The value of num is greater than 5";
}

?>