pg_query_params不允许带引号的占位符

Question

I'm working on a postgreSQL query that is searching for a column that is contained in a geometry and it works perfectly if run it through pgAdmin but I cannot make it works with pg_query_params through PHP

this is the working query

select a.full_address from streets a, gisgeometry b where b."Name" ILIKE ANY ('{%Barnet%}') AND ST_CONTAINS(b.sp_geometry,a.wkb_geometry) and a.full_address ilike '%high street%' group by a.full_address ORDER BY a.full_address LIMIT 100;

if asked through PHP i can make it work with pg_query

$result = pg_query($connect,'select a.full_address from streets a, gisgeometry b where b."Name" ILIKE ANY ('.$bbox.') AND ST_CONTAINS(b.sp_geometry,a.wkb_geometry) and a.full_address ilike '.$pattern.' group by a.full_address ORDER BY a.full_address LIMIT 100;');

not with pg_query_params

$result = pg_query_params($connect,'select a.full_address from streets a, gisgeometry b where b."Name" ILIKE ANY ($1) AND ST_CONTAINS(b.sp_geometry,a.wkb_geometry) and a.full_address ilike $2 group by a.full_address ORDER BY a.full_address  LIMIT 100;', array($bbox, $pattern));

I do of course sanitation and everything in PHP and with pg_query I can make it works in this way (I mean add the single quotes around the variables)

  $pattern = fixtags($_POST['findthis']);
  $pattern = str_replace(" ", "%", $pattern);
  ## add single quotes and % around the pattern
  $pattern = "'%".$pattern."%'";

  $bbox = fixtags($_POST['ext']);
  $bbox = explode(",", $bbox);

  foreach ($bbox as &$value) {
    $value = "%$value%";
  }

  $bbox = implode(",", $bbox);
  ## add single quotes and {} around the pattern
  $bbox = "'{". $bbox ."}'";

with $pattern = "%".$pattern."%"; and $bbox = "{". $bbox ."}"; without single quotes or with quotes as above the error is:

Got error 'PHP message: PHP Warning:  pg_query_params(): Query failed: ERROR:  array value must start with "{" or dimension information in ...php on line 367
PHP message: ..