<h3>crosses function</h3>
Returns 1 if the supplied geometries have some, but not all, interior points in common.

<h4>Syntax</h4>
<pre>crosses( $geometry , $geometry)</pre>

<h4>Arguments</h4>
geometry &rarr; geometry
geometry &rarr; geometry

<h4>Example</h4>
<pre> crosses( geomFromWKT( 'LINESTRING(3 5 , 4 4 , 5 3)' ) , geomFromWKT( 'LINESTRING(3 3 , 4 4 , 5 5)' ))    &rarr; returns 1</pre>
<pre> crosses( geomFromWKT( 'POINT(4 5)' ) , geomFromWKT( 'LINESTRING(3 3 , 4 4 , 5 5)' ))             &rarr; returns 0</pre>
