4 calls to drupal_is_cli()

drupal_page_is_cacheable in includes/bootstrap.inc
Determines the cacheability of the current page.
drupal_session_start in includes/session.inc
Starts a session forcefully, preserving already set session data.
_drupal_bootstrap_page_header in includes/bootstrap.inc
Invokes hook_boot(), initializes locking system, and sends HTTP headers.
_drupal_log_error in includes/errors.inc
Logs a PHP error or exception and displays an error page in fatal cases.

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