If you're writing a multiple values for an attribute with ldap_modify (), the function will attempt to write all entries in the value array even if those entries are blank. Setting blank entries to a blank array in the manner used for attribute deletion, ie:
$attributes[$attr_name][3] = array ();
results in the string "Array" being written to the directory for that value. The only way I was able to find to do what I wanted - only write the values for the attribute that were submitted on the form - was to check if each attribute had multiple values and unset () blank values, eg:
foreach ($attributes as $key => $cur_val) {
if ($cur_val== '') {
$attributes[$key] = array ();
}
if (is_array ($cur_val)) {
foreach ($cur_val as $mv_key => $mv_cur_val) {
if ($mv_cur_val == '') {
unset ($attributes[$key][$mv_key]);
}
else {
$attributes[$key][$mv_key] = $mv_cur_val;
}
}
}
}
