diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 1acf1271eaf..910720b56f2 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -220,10 +220,10 @@ function testSqlAndScriptInject($val, $type)
 /**
  * Return true if security check on parameters are OK, false otherwise.
  *
- * @param		string|array	$var		Variable name
- * @param		int				$type		1=GET, 0=POST, 2=PHP_SELF
- * @param		int				$stopcode	0=No stop code, 1=Stop code (default) if injection found
- * @return		boolean|null				True if there is no injection.
+ * @param		string|array<string,string>	$var		Variable name
+ * @param		int<0,2>		$type		1=GET, 0=POST, 2=PHP_SELF
+ * @param		int<0,1>		$stopcode	0=No stop code, 1=Stop code (default) if injection found
+ * @return		boolean						True if there is no injection.
  */
 function analyseVarsForSqlAndScriptsInjection(&$var, $type, $stopcode = 1)
 {
@@ -1599,8 +1599,8 @@ if (!function_exists("llxHeader")) {
 /**
  *  Show HTTP header. Called by top_htmlhead().
  *
- *  @param  string  $contenttype    Content type. For example, 'text/html'
- *  @param	int		$forcenocache	Force disabling of cache for the page
+ *  @param  string  	$contenttype    Content type. For example, 'text/html'
+ *  @param	int<0,1>	$forcenocache	Force disabling of cache for the page
  *  @return	void
  */
 function top_httphead($contenttype = 'text/html', $forcenocache = 0)
@@ -1730,15 +1730,15 @@ function top_httphead($contenttype = 'text/html', $forcenocache = 0)
  * Output html header of a page. It calls also top_httphead()
  * This code is also duplicated into security2.lib.php::dol_loginfunction
  *
- * @param 	string 	$head			 Optional head lines
- * @param 	string 	$title			 HTML title
- * @param 	int    	$disablejs		 Disable js output
- * @param 	int    	$disablehead	 Disable head output
- * @param 	array  	$arrayofjs		 Array of complementary js files
- * @param 	array  	$arrayofcss		 Array of complementary css files
- * @param 	int    	$disableforlogin Do not load heavy js and css for login pages
- * @param   int     $disablenofollow Disable nofollow tag for meta robots
- * @param   int     $disablenoindex  Disable noindex tag for meta robots
+ * @param 	string		$head			 Optional head lines
+ * @param 	string		$title			 HTML title
+ * @param 	int<0,1>   	$disablejs		 Disable js output
+ * @param 	int<0,1>   	$disablehead	 Disable head output
+ * @param 	string[]	$arrayofjs		 Array of complementary js files
+ * @param 	string[]	$arrayofcss		 Array of complementary css files
+ * @param 	int<0,1>	$disableforlogin Do not load heavy js and css for login pages
+ * @param   int<0,1>	$disablenofollow Disable nofollow tag for meta robots
+ * @param   int<0,1>	$disablenoindex  Disable noindex tag for meta robots
  * @return	void
  */
 function top_htmlhead($head, $title = '', $disablejs = 0, $disablehead = 0, $arrayofjs = array(), $arrayofcss = array(), $disableforlogin = 0, $disablenofollow = 0, $disablenoindex = 0)
@@ -2146,10 +2146,10 @@ function top_htmlhead($head, $title = '', $disablejs = 0, $disablehead = 0, $arr
  *  @param      string			$head    			Lines in the HEAD
  *  @param      string			$title   			Title of web page
  *  @param      string			$target  			Target to use in menu links (Example: '' or '_top')
- *	@param		int				$disablejs			Do not output links to js (Ex: qd fonction utilisee par sous formulaire Ajax)
- *	@param		int				$disablehead		Do not output head section
- *	@param		array			$arrayofjs			Array of js files to add in header
- *	@param		array			$arrayofcss			Array of css files to add in header
+ *	@param		int<0,1>		$disablejs			Do not output links to js (Ex: qd fonction utilisee par sous formulaire Ajax)
+ *	@param		int<0,1>		$disablehead		Do not output head section
+ *	@param		string[]		$arrayofjs			Array of js files to add in header
+ *	@param		string[]		$arrayofcss			Array of css files to add in header
  *  @param		string			$morequerystring	Query string to add to the link "print" to get same parameters (use only if autodetect fails)
  *  @param      string			$helppagename    	Name of wiki page for help ('' by default).
  * 				     		    		            Syntax is: For a wiki page: EN:EnglishPage|FR:FrenchPage|ES:SpanishPage|DE:GermanPage
@@ -2412,7 +2412,7 @@ function top_menu($head, $title = '', $target = '', $disablejs = 0, $disablehead
 /**
  * Build the tooltip on user login
  *
- * @param	int			$hideloginname		Hide login name. Show only the image.
+ * @param	int<0,1>	$hideloginname		Hide login name. Show only the image.
  * @param	string		$urllogout			URL for logout (Will use DOL_URL_ROOT.'/user/logout.php?token=...' if empty)
  * @return  string                  		HTML content
  */
@@ -3201,15 +3201,15 @@ function top_menu_search()
 /**
  *  Show left menu bar
  *
- *  @param  array	$menu_array_before 	       	Table of menu entries to show before entries of menu handler. This param is deprecated and must be provided to ''.
- *  @param  string	$helppagename    	       	Name of wiki page for help ('' by default).
- * 				     		                   	Syntax is: For a wiki page: EN:EnglishPage|FR:FrenchPage|ES:SpanishPage|DE:GermanPage
- * 									         	For other external page: http://server/url
- *  @param  string	$notused             		Deprecated. Used in past to add content into left menu. Hooks can be used now.
- *  @param  array	$menu_array_after           Table of menu entries to show after entries of menu handler
- *  @param  int		$leftmenuwithoutmainarea    Must be set to 1. 0 by default for backward compatibility with old modules.
- *  @param  string	$title                      Title of web page
- *  @param  int  	$acceptdelayedhtml          1 if caller request to have html delayed content not returned but saved into global $delayedhtmlcontent (so caller can show it at end of page to avoid flash FOUC effect)
+ *  @param  string		$menu_array_before 	       	Table of menu entries to show before entries of menu handler. This param is deprecated and must be provided to ''.
+ *  @param  string		$helppagename    	       	Name of wiki page for help ('' by default).
+ *                                                  Syntax is: For a wiki page: EN:EnglishPage|FR:FrenchPage|ES:SpanishPage|DE:GermanPage
+ *                                                  For other external page: http://server/url
+ *  @param  string		$notused             		Deprecated. Used in past to add content into left menu. Hooks can be used now.
+ *  @param  array		$menu_array_after           Table of menu entries to show after entries of menu handler
+ *  @param  int			$leftmenuwithoutmainarea    Must be set to 1. 0 by default for backward compatibility with old modules.
+ *  @param  string		$title                      Title of web page
+ *  @param  int<0,1>	$acceptdelayedhtml          1 if caller request to have html delayed content not returned but saved into global $delayedhtmlcontent (so caller can show it at end of page to avoid flash FOUC effect)
  *  @return	void
  */
 function left_menu($menu_array_before, $helppagename = '', $notused = '', $menu_array_after = array(), $leftmenuwithoutmainarea = 0, $title = '', $acceptdelayedhtml = 0)
@@ -3523,7 +3523,7 @@ function main_area($title = '')
  *
  *  @param	string		$helppagename		Page name ('EN:xxx,ES:eee,FR:fff,DE:ddd...' or 'http://localpage')
  *  @param  Translate	$langs				Language
- *  @return	array		Array of help urls
+ *  @return	array{helpbaseurl:string,helppage:string,mode:string}	Array of help urls
  */
 function getHelpParamFor($helppagename, $langs)
 {