diff --git a/src/KBDocumentation.php b/src/KBDocumentation.php
index 958f1ad1..e955ab7b 100644
--- a/src/KBDocumentation.php
+++ b/src/KBDocumentation.php
@@ -60,7 +60,7 @@ public function getAnchor(): ?string
      * Used for json_encode function
      * This can seem useless, do not remove it.
      *
-     * @return array
+     * @return array<string,string>
      */
     public function jsonSerialize(): array
     {
diff --git a/src/KBEntry.php b/src/KBEntry.php
index 7ff7e9cd..e9ca610a 100644
--- a/src/KBEntry.php
+++ b/src/KBEntry.php
@@ -130,7 +130,7 @@ public function addDocumentation(string $url, ?string $anchor = null ): KBDocume
      * Used for json_encode function
      * This can seem useless, do not remove it.
      *
-     * @return array
+     * @return array<string,array<KBDocumentation>|bool|string>>
      */
     public function jsonSerialize(): array
     {
diff --git a/src/Search.php b/src/Search.php
index 12f8ded5..2deb4573 100644
--- a/src/Search.php
+++ b/src/Search.php
@@ -21,11 +21,17 @@ class Search
      */
     public static $loaded = false;
 
-    public const ANY        = -1;
-    public const MYSQL      = 1;
-    public const MARIADB    = 2;
-    public const DS         = DIRECTORY_SEPARATOR;
-    public static $DATA_DIR = __DIR__.self::DS."..".self::DS."dist".self::DS;
+    public const ANY     = -1;
+    public const MYSQL   = 1;
+    public const MARIADB = 2;
+    public const DS      = DIRECTORY_SEPARATOR;
+
+    /**
+     * The directory where the data is located
+     *
+     * @var string
+     */
+    public static $DATA_DIR = __DIR__ . self::DS . ".." . self::DS . "dist" . self::DS;
 
     /**
      * Load data from disk
@@ -127,7 +133,7 @@ public static function getVariableType(string $name): string
     /**
      * Return the list of static variables
      *
-     * @return array
+     * @return array<int,string>
      */
     public static function getStaticVariables(): array
     {
@@ -137,7 +143,7 @@ public static function getStaticVariables(): array
     /**
      * Return the list of dynamic variables
      *
-     * @return array
+     * @return array<int,string>
      */
     public static function getDynamicVariables(): array
     {
@@ -148,7 +154,7 @@ public static function getDynamicVariables(): array
      * Return the list of variables having dynamic = $dynamic
      *
      * @param bool $dynamic dynamic=true/dynamic=false
-     * @return array
+     * @return array<int,string>
      */
     public static function getVariablesWithDynamic(bool $dynamic): array
     {
diff --git a/src/SlimData.php b/src/SlimData.php
index 040530f9..07f8ba27 100644
--- a/src/SlimData.php
+++ b/src/SlimData.php
@@ -32,14 +32,14 @@ class SlimData extends stdClass implements JsonSerializable
     /**
      * Types of documentation
      *
-     * @var array<string, string|int>
+     * @var array<string,int>
      */
     private $types = array("MYSQL" => 1, "MARIADB" => 2);
 
     /**
      * Types of variables
      *
-     * @var array<string, string|int>
+     * @var array<string,int>
      */
     private $varTypes = array(
         "string" => 1,
@@ -56,9 +56,9 @@ class SlimData extends stdClass implements JsonSerializable
     /**
      * Create a slimData object
      *
-     * @param float|null                $version  The version
-     * @param array<string,string>|null $types    The types of documentations
-     * @param array<string,string>|null $varTypes The types of variables
+     * @param float|null             $version  The version
+     * @param array<string,int>|null $types    The types of documentations
+     * @param array<string,int>|null $varTypes The types of variables
      */
     public function __construct(
         ?float $version = null,
@@ -97,7 +97,7 @@ public function addVariable(string $name, ?string $type, ?bool $dynamic): KBEntr
      * Used for json_encode function
      * This can seem useless, do not remove it.
      *
-     * @return array
+     * @return array<string,array|float|stdClass>
      */
     public function jsonSerialize(): array
     {
@@ -113,7 +113,7 @@ public function jsonSerialize(): array
 
                 if ($var->getType() !== null) {
                     if (isset($this->varTypes[$var->getType()]) === false) {
-                        $this->varTypes[$var->getType()] = "".(count($this->varTypes) + 1);
+                        $this->varTypes[$var->getType()] = count($this->varTypes) + 1;
                     }
 
                     $variable->t = $this->varTypes[$var->getType()];