Allocates resources to hold descriptor or LOB locator.
An Oracle connection identifier, returned by oci_connect or oci_pconnect.
Valid values for type are: OCI_DTYPE_FILE, OCI_DTYPE_LOB and OCI_DTYPE_ROWID.
Returns a new LOB or FILE descriptor on success, or null on failure.
In PHP versions before 5.0.0 you must use ocinewdescriptor instead. This name still can be used, it was left as alias of oci_new_descriptor for downwards compatability. This, however, is deprecated and not recommended.