Some php Functions

realpath — Returns canonicalized absolute pathname __DIR__

echo realpath(__FILE__);

print(__FILE__);
echo '<br>';

echo'PATHINFO_DIRNAME: '. pathinfo(__FILE__, PATHINFO_DIRNAME); echo '<br>';
echo'PATHINFO_BASENAME: '. pathinfo(__FILE__, PATHINFO_BASENAME); echo '<br>';
echo'PATHINFO_EXTENSION: '. pathinfo(__FILE__, PATHINFO_EXTENSION); echo '<br>';

&nbsp;

Output:

/home/develop1/public_html/folder/example.php
PATHINFO_DIRNAME: /home/develop1/public_html/folder
PATHINFO_BASENAME: example.php
PATHINFO_EXTENSION: php