php error

[CODE]<form action=”sayi.php” method=”post”>

input a number between 1-99:

<input name=”number” type=”text” id=”sayi”>
<input name=”ok” type=”submit” value=”ok”>

</form>

<?php

$A = $_REQUEST[“number”];
$B = $_REQUEST[“number”];

echo (“number “);

if ($A<10) $B=$A;

else if ($A>=10 && $A<20) { $B=$A-10; echo(“ten “);}
else if ($A>=20 && $A<30) { $B=$A-20; echo(“twenty “);}
else if ($A>=30 && $A<40) { $B=$A-30; echo(“thirty “);}
else if ($A>=40 && $A<50) { $B=$A-40; echo(“fourty “);}
else if ($A>=50 && $A<60) { $B=$A-50; echo(“fifty “);}
else if ($A>=60 && $A<70) { $B=$A-60; echo(“sixty “);}
else if ($A>=70 && $A<80) { $B=$A-70; echo(“seventy “);}
else if ($A>=80 && $A<90) { $B=$A-80; echo(“eighty “);}
else if ($A>=90 && $A<100){ $B=$A-90; echo(“ninety “);}

if ($B==1) echo(“one”);

else if ($B==2) echo(“two”);
else if ($B==3) echo(“three”);
else if ($B==4) echo(“four”);
else if ($B==5) echo(“five”);
else if ($B==6) echo(“six”);
else if ($B==7) echo(“seven”);
else if ($B==8) echo(“eight”);
else if ($B==9) echo(“nine”);

if ($A >= 100 || $A <= 0 )
{
echo “only must be between 1-99!”;
}

?>
[/CODE]

When I have these codes run,I am getting these errors.

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