Question about form in PHP and MySQL


I am new to PHP and MySQL. I was writing a script to pull data from
SQL server and display the data. There’s a “submit” button. When the
user clicks “submit”, the form calls itself and I “expect” the submit
value is set. However, I find the $submit is never set. Is there
something wrong with my script?


$display = mysql_query(“SELECT * FROM $table ORDER BY id”,$db);

if (!$submit) {
echo “<form method=post action=$PHP_SELF >”;

// code to display questions

echo “<input type=’submit’ value=’SUBMIT’ name=’submit’ >”;
echo “</form >”;

if ($submit) {
// calculate scores
? >

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