$txt_1 = ' $aaa = 2; $bbb = 3; $ccc = 4; echo $ddd = $aaa + $bbb + $ccc ; echo ""; echo $eee = $aaa.$bbb.$ccc ; '; eval($txt_1); echo " ddd : $ddd 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 ""; echo $eee = $txt_[aaa].$txt_[bbb].$txt_[ccc] ; '; eval($txt_1); echo " ddd : $ddd eee..