All settings correct for using Composer
Warning: is_dir(): open_basedir restriction in effect. File(/usr/share/httpd/.composer) is not within the allowed path(s): (/home/WwwBSD/preprods.fr/:/tmp/) in /home/WwwBSD/preprods.fr/web/apimab/composer-setup.php on line 533

Warning: is_dir(): open_basedir restriction in effect. File(/usr/share/httpd/.composer) is not within the allowed path(s): (/home/WwwBSD/preprods.fr/:/tmp/) in /home/WwwBSD/preprods.fr/web/apimab/composer-setup.php on line 723
Unable to create Composer home directory "/usr/share/httpd/.composer": mkdir(): open_basedir restriction in effect. File(/usr/share/httpd/.composer) is not within the allowed path(s): (/home/WwwBSD/preprods.fr/:/tmp/)