getting the line number of the current echo line, how?

[kaisellgren]

I would like to echo the line where the echo command is, how to do this?

<?php

echo line_number();

?>

Something like that, it should return now '3'.

[marek_mar]

Use the __LINE__ magic constant.

<?php
echo __LINE__;
?>

[kaisellgren]

Thank you marek, I remembered there is a command but needed someone to remind me :)