Pulling binary data from LDAP server

[pauls]

I'm having trouble dealing with binary data pulled from an LDAP server. Maybe the PHP LDAP functions are not 8-bit clean? It seems so unlikely I suspect I am being stupid. If I extract an array of data from the LDAP server, one piece of which is a JPEG and the rest is ASCII text, I can easily print the ASCII stuff but not the JPEG.

Are there any special tricks for handling this type of data? I am currently using ldap_get_attributes() to fetch the data and then collapsing it into a unidimensional array by saving the first value in each attribute array.

If my JPEG is $foo["image"] in my unidimensional array of LDAP result data,
and I do something like this, it doesn't work:

<?
header("Content-Type: image/jpeg");
header("Content-Disposition: inline");
echo $foo["image"];
?>

I have also tried altering $foo["jpegphoto"] with stripslashes() and stripcslashes(). Unfortunately I don't know anything about how this data is stored on the LDAP server I'm talking to.

[pauls]

Yeah OK I think I am stupid and I need to use ldap_get_values_len() instead of ldap_get_attributes() which is apparently not able to handle binary data....

[vdweij]

You should use ldap_get_values_len to pull binary data from the server.
The result is an array containg all the values for the specified attribute.

$ds=@ldap_connect($LDAP_SERVER);

@ldap_bind($ds);

$sr=@ldap_read($ds, $dn, $filter)

$result = ldap_first_entry($ds, $sr);
$img = ldap_get_values_len($ds,$result,'jpegphoto');