Add new function MD_STD_IN::sanitize_float

MD_STD_IN.php

@@ -176,4 +176,21 @@ final class MD_STD_IN {
 
     }
 
+    /**
+     * Sanitizes a string to a float.
+     *
+     * @param string $input Input string.
+     *
+     * @return float
+     */
+    final public static function sanitize_float(string $input):float {
+
+        $output = \str_replace(",", ".", $input);
+        if (($output = \filter_var($output, FILTER_VALIDATE_FLOAT)) === false) {
+            throw new MDgenericInvalidInputsException("Input is readable as a floating point value");
+        }
+        return $output;
+
+    }
+
 }