[PHP] PHPのオブジェクトを配列に変換する関数

obj2arr.php

<?php
function obj2arr($obj){
	$arr=array();
	if(is_object($obj)){
		$obj=get_object_vars($obj);
	}else{
		$obj=$obj;
	}

	foreach($obj as $key=>$val){
		if(is_object($obj[$key])){
			$arr[$key]=obj2arr($val);
		}else if(is_array($val)){
			foreach($val as $k=>$v){
				if(is_object($v) || is_array($v)){
					$arr[$key][$k]=obj2arr($v);
				}else{
					$arr[$key][$k]=$v;
				}
			}
		}else{
			$arr[$key]=$val;
		}

	}
	return $arr;
}


//こっちのほうが軽そうかな？
// http://www.php.net/manual/de/language.types.array.php#94241

function object_to_array($mixed){
	if(is_object($mixed)){
		$mixed=(array)$mixed;
	}
	
	if(is_array($mixed)){
		$new=array();
		foreach($mixed as $key=>$val){
			$key=preg_replace("/^\\0(.*)\\0/","",$key);
			$new[$key]=object_to_array($val);
		}
	}else{
		$new=$mixed;
	}
	
    return $new;        
}
?>