These are my problems:
The value I selected from the two drop down list will change back to its default value when the browser implements the function onchange in the form.
I want to create a table and the data's should be the same with the the table I selected from the second drop down list.
This is my code
PHP
<?php
$connectDatabase = mysql_connect("localhost","root","") or die(mysql_error());
$tables = array();
if(isset($_POST['select_db']))
{ // if its submitted
$select_db = $_POST['select_db'];
$mysql_select_db = mysql_select_db($select_db,$connectDatabase);
$drop_table = mysql_query("DROP TABLE pdf_table",$connectDatabase);
$query = "SHOW TABLES FROM $select_db";
$mysql_query = mysql_query($query,$connectDatabase);
while($row =mysql_fetch_assoc($mysql_query))
{
$tables[] = $row['Tables_in_' . $select_db]; // use associative instead
}
}
if(isset($_POST['select_table']))
{
$select_table = $_POST['select_table'];
$db = mysql_select_db($select_db,$connectDatabase);
$query_select = "Create Table pdf_table AS ( SELECT * FROM $select_table)";
$select_query = mysql_query($query_select,$connectDatabase);
}
?>
HTML CODE
<form class="Search_Form" action="moduleindex.php" method="POST">
<select name="select_db" onchange="this.form.submit();">
<option disabled selected>Select Database</option>
<option>section_masterfile</option>
</select>
<select onchange="this.form.submit();" name="select_table">
<option disabled selected>Select Table</option>
<?php foreach($tables as $table): ?>
<option value="<?php echo $table; ?>"><?php echo $table; ?></option>
<?php endforeach; ?>
</select>
</form>
Add check in foreach loop while generating Options if some value posted and value is equal to loop value
<select onchange="this.form.submit();" name="select_table">
<option disabled selected>Select Table</option>
<?php foreach($tables as $table){?>
<?php
$selected ="";
if(isset($_POST['select_table']) && $_POST['select_table'] == $table){
$selected = 'selected="selected"';
} ?>
<option value="<?php echo $table; ?>" <?php echo $selected ;?> ><?php echo $table; ?></option>
<?php }?>
</select>