php : eval 텍스트를 변수로 실행

 <?

$txt_1 = '

$aaa = 2;

$bbb = 3;

$ccc = 4;

echo $ddd = $aaa + $bbb + $ccc ;

echo "<br>";

echo $eee = $aaa.$bbb.$ccc ;

';

eval($txt_1);

echo "<br><br>

ddd : $ddd<br>

eee : $eee

";

/*

9

234

ddd : 9

eee : 234

*/

?>

<?

$txt_1 = '

$txt_[aaa] = 5;

$txt_[bbb] = 6;

$txt_[ccc] = 7;

echo $ddd = $txt_[aaa] + $txt_[bbb] + $txt_[ccc] ;

echo "<br>";

echo $eee = $txt_[aaa].$txt_[bbb].$txt_[ccc] ;

';

eval($txt_1);

echo "<br><br>

ddd : $ddd<br>

eee : $eee

";

/*

18

567

ddd : 18

eee : 567

*/

?>