  A generalized version of both rectangular metric spaces and rectangular
quasi-metric spaces is known as rectangular quasi b-metric spaces (RQB-MS). In
the current work, we define generalized $( \theta,\phi) $-contraction mappings
and study fixed point (FP) results for the maps introduced in the setting of
rectangular quasi b-metric spaces. Our results generalize many existing
results. We also provide examples in support of our main findings.
