Using echo with PHP CLI?

Question

The following script is executed in the PHP CLI:

<?php echo 'hello world!'; ?> 

I can not see anything. How to enable output?

Answer 1

Run it in the terminal:

 php -r 'echo "Hello World!\n";' 

Answer 2

Looks like you forgot the shebang line. Yours may vary depending on your setup, but you need to point to php somehow.

  #!/usr/bin/env php <?php echo 'hello world!'; ?> 

Answer 3

Verify that the user has permission to run the file.