Outputting information to the php console?

Question

PHP

Can I somehow output information to the console while the script is running?

I always thought that the output to the console goes like this:
console_log('[+] Все данные получены.');

Answer 1

<?php
echo("Output to console\n");
file_put_contents(" php://stderr ", "Output to STDERR\n");
error_log("Output to HTTP server error.log file");
?>