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POchange sqldatabase php script
 

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  1. POchange sqldatabase php script
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    <p>i have this problem for 3 days already :( i created a 3 databases via phpmyadmin and i already put those 3 database into a dropdown list what i wanted is, when ever i click submit, the default database changes dependin on the value of the dropdown list</p> <p>this is the code i came up to</p> <pre><code>&lt;table width="300" border="0" align="center" cellpadding="0" cellspacing="1"&gt; &lt;tr&gt; &lt;td&gt;&lt;form name="form2" method="post" &gt; &lt;table width="100%" border="0" cellspacing="1" cellpadding="3"&gt; &lt;tr&gt; &lt;td colspan="3"&gt;&lt;center&gt;&lt;strong&gt;Select Default Database&lt;/strong&gt;&lt;/center&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&lt;center&gt;&lt;select name="db_used"&gt; &lt;?php $host="localhost"; $username="root"; $password=""; $link = mysql_connect("$host", "$username", "$password")or die("cannot connect"); $result = mysql_list_dbs( $link ); while( $row = mysql_fetch_object( $result ) ){ echo "&lt;option&gt;$row-&gt;Database&lt;/option&gt;"; } ?&gt; &lt;/select&gt;&lt;/center&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td colspan="3" align="center"&gt;&lt;input type="submit" name="Submit" value="Submit"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/form&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;?php $host="localhost"; $username="root"; $password=""; $db_name = "#this depends on the value of the dropdown list"; mysql_connect("$host", "$username", "$password")or die("cannot connect"); mysql_select_db("$db_name")or die("cannot select DB"); ?&gt; </code></pre> <p>any help is greatly appreciated~~</p>
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    1. USVikas Umrao
    1. USso bbqpork
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      1. VTUpMod
    1. COWhat happens? Any error messages?
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      1. USZnarkus
    2. COUse extreme caution here. The databases listed will be _everything_ the connected user (root!!) has access to, including `mysql, information_schema`. Create a user which has access _only_ to the necessary databases.
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      1. USMichael Berkowski
    3. COYour value from the `<select>` is in `$_POST['db_used']` It is _very highly recommended_ to create a whitelist of possible databases to connect to, rather than allow connecting to _any_ available database (which will include `information_schema, test`, others)
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      1. USMichael Berkowski
 

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