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type.php

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<?php
function typeId($var){
  if($classType = get_class($var))return $classType;
  return gettype($var);
}
function ofType($var, $typeName){
  return (strtolower(typeId($var)) == strtolower($typeName));
}
function ofPolymorphicType($var, $className){
  if($classType = get_class($var)){
    if($className == $classType)return true;
    //{ get Parent Class's List of $var
    $parentClassList = array();
    $parentClassName = get_class($var);
    while($parentClassName = get_parent_class($parentClassName)){
      $parentClassList[] = strtolower($parentClassName);
    }
    //}
    return in_array(strtolower($className), $parentClassList);
  }else{
    return (strtolower(typeId($var)) == strtolower($className));
  }
}
?>

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