If statement

[NZ_Kiwis]

I have this code

$gameplayed = $_POST['game_played'];
$T1S = $_POST['T1Score'];
$T2S = $_POST['T2Score'];

echo "$gameplayed - $T1S - $T2S";

if ($T1S == '0' and $T2S == '0' and $gameplayed = ""){
echo "Yes";
}

And the echo does " - 0 - 0" yes to does not echo Yes. Why?

[NZ_Kiwis]

I've got this, still no luck

$gameplayed = $_POST['game_played'];
$T1S = $_POST['T1Score'];
$T2S = $_POST['T2Score'];

echo "$gameplayed - $T1S - $T2S";

if ($T1S == '0' && $T2S == '0' && $gameplayed = ""){
echo "Yes";
} 

[NogDog]

if ($T1S == '0' and $T2S == '0' and $gameplayed =[color=red]=[/color] ""){