[SOLVED] Just a little bit of string manipulation

optimaximal · February 10, 2007

Hi all,

Can anyone give me a little nudge in the right direction about how I can take a string and replace all but the first 2 characters with asterisks?

Im sure I should be using the strreplace function, as well as possibly left or something, but I'm having a brain fart.

All help appreciated.

GingerRobot · February 10, 2007

If you definately want to show the number of characters in the string, rather than just having a fixed number of asterisks, then i think you'll need two functions, and do it something like:

<?php
$str = 'mystring';
$first_letters  = substr($str, 0, 2);
echo str_pad($first_letters, strlen($str), "*");
?>

If you were to go with just a fixed number of asterisks, you could use substr_replace on its own.

optimaximal · February 12, 2007

Thanks for the help.

Can someone debug this? Im sure it's pretty clear what i'm trying too do, although i'm getting the dreaded PHP white-screen-of-nothingness. I'm sure it's my syntax, but hey, any ideas welcome.

Let me know if i've integrated the code right.

<?php
// Add what we need.
require('connection.php');
include('header.php');

?>
</style></head>

<body>
<?php
if (isset ($_POST['submit'])) 
{

if ($_POST['audit_passsecure'] == '1')
{
	$str = '{$_POST['audit_passpassword']}';
	$first_letters  = substr($str, 0, 2);
	$encrypt = str_pad($first_letters, strlen($str), "*");
}					

// Define the query.
$query = "INSERT INTO audit_passwords
(audit_passlocation,audit_passname,audit_passusername,audit_passpassword,audit_passdescr,audit_passsecure)
VALUES
('{$_POST['audit_passlocation']}','{$_POST['audit_passname']}','{$_POST['audit_passusername']}',
'$encrypt','{$_POST['audit_passdescr']}','{$_POST['audit_passsecure']}');
";

// Execute the query.
if (@mysql_query ($query)) 
{
	?>
	<p>
	Password Added to Database<br />
	Click <a href="password_add.php">here</a> to add another.<br />
	Click <a href="index.php">here</a> to return home.
	</p>
	<?php
} 
else 
{
	print "<p>Could not add the entry because: <b>" . mysql_error() . "</b>. The query was $query.</p>";
}

mysql_close();

}
else
{
?>
<form action="password_add.php" method="post">
<table width="100%"  border="0">
  <tr>
    <td width="200" valign="top">What is the Password For:</td>
    <td><input type="text" name="audit_passname" size="25" maxsize="6" /></td>
  </tr>
  <tr>
    <td width="200" valign="top">Password Location (i.e. Web Address)</td>
    <td><input type="text" name="audit_passlocation" size="25" maxsize="6" /></td>
  </tr>
    <tr>
    <td width="200" valign="top">Attached Username:</td>
    <td><input type="text" name="audit_passusername" size="25" maxsize="40" /></td>
  </tr>
  </tr>
    <tr>
    <td width="200" valign="top">Attached Password:</td>
    <td><input type="password" name="audit_passpassword" size="25" maxsize="40" /></td>
  </tr>
  <tr>
    <td width="200" valign="top">Additional Notes:</td>
    <td><textarea name="audit_passdescr" cols="40" rows="5" wrap="physical"></textarea></td>
  </tr>
  <tr>
    <td width="200" valign="top">Secure Password</td>
    <td><select name="audit_ltype">
<option value="0" selected>No</option>
<option value="1">Yes</option>
</select></td>
  </tr>
</table>
<br>
<input type="submit" name="submit" value="Submit" /><input name="Reset" type="reset" value="Reset" />
</form>
<?php
}
?>
</body>
</html>

ToonMariner · February 12, 2007

change

$str = '{$_POST['audit_passpassword']}';

to

$str = $_POST['audit_passpassword'];

JJohnsenDK · February 12, 2007

Try this. I removed all the {} also from your mysql_query.

<?php
if (isset ($_POST['submit'])) 
{

if ($_POST['audit_passsecure'] == '1')
{
	$str = '$_POST['audit_passpassword']';
	$first_letters  = substr($str, 0, 2);
	$encrypt = str_pad($first_letters, strlen($str), "*");
}					

// Define the query.
$query = "INSERT INTO audit_passwords
(audit_passlocation,audit_passname,audit_passusername,audit_passpassword,audit_passdescr,audit_passsecure)
VALUES
('$_POST['audit_passlocation']','$_POST['audit_passname']','$_POST['audit_passusername']',
'$encrypt','$_POST['audit_passdescr']','$_POST['audit_passsecure']');
";

// Execute the query.
if (@mysql_query ($query)) 
{
	?>
	<p>
	Password Added to Database<br />
	Click <a href="password_add.php">here</a> to add another.<br />
	Click <a href="index.php">here</a> to return home.
	</p>
	<?php
} 
else 
{
	print "<p>Could not add the entry because: <b>" . mysql_error() . "</b>. The query was $query.</p>";
}

mysql_close();

}
else
{
?>

ToonMariner · February 12, 2007

You may have to concat the $_POST vars in the query string - don't know why but I often get errors if I don't.

optimaximal · February 12, 2007

ZING! ToonMariner, your solution worked.

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[SOLVED] Just a little bit of string manipulation

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