php arrayObj insensitive to undegined index -

how make arrayobj in insensitive undefined index, need use undefined index example in logging

$this->log['some']['other']['info']++ 

here try:

class arrayinsensitive extends \arrayobject{      var $data = array();      public function offsetget($name) {         if(!array_key_exists($name,$this->data)) $this->data[$name]=new arrayinsensitive();          return $this->data[$name];     }     public function offsetset($name, $value) {         $this->data[$name] = $value;     }     public function offsetexists($name) {         return (array_key_exists($name,$this->data));     }     public function offsetunset($name) {         unset($this->data[$name]);     }  } 

how ?

just force specific case whenever reference index value

class arrayinsensitive extends \arrayobject{      var $data = array();      public function offsetget($name) {         if(!array_key_exists(strtolower($name),$this->data)) $this->data[strtolower($name)]=new arrayinsensitive();          return $this->data[strtolower($name)];     }     public function offsetset($name, $value) {         $this->data[strtolower($name)] = $value;     }     public function offsetexists($name) {         return (array_key_exists(strtolower($name),$this->data));     }     public function offsetunset($name) {         unset($this->data[strtolower($name)]);     }  }