Unusual behavior after modifying a php file
In WordPress, in header.php, I have placed just before
to display a menu of my own. Works great.
In this lemenu.php, after displaying my menu, I have placed:
to display another line of menu if we are on page 123, which is a special page for members. Works great!
BUT...
for testing purpose, and because I have to change the menu lemenumembres.php, I removed the if ( is_single('123')) php block and... the second menu still displays. I have checked the files (header.php, lemenu.php) thru the WP editor, thru FTP, even thru CPANEL file manager and the block is effectively removed. But the content of lemenumembres.php still displays.
I have even removed from header.php and the first menu stops displaying but... the second one still does.
I do not have a cache plugin, no cache is installed on server, I have emptied browser's cache many times ans I even tried with other browsers. Still the same.
Can someone tell me what I dont understand?