isset vs empty php

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
isset vs empty php	0.67	0.3	4020	27	18
isset	1.28	0.9	8192	66	5
vs	0.46	0.8	3243	8	2
empty	0.98	0.7	8515	33	5
php	0.42	0.2	4488	76	3

Keyword	CPC	PCC	Volume	Score
isset vs empty php	0.49	0.7	4891	90
isset y empty php	1.64	0.9	7652	40
php isset empty is_null	1.63	0.4	1778	2
not isset in php	0.26	1	8084	81
isset in php means	0.12	1	2527	16
isset and unset in php	1.54	0.8	1363	92
php $isset	0.89	1	5450	32
php isset and not empty	0.13	0.8	2012	67
isset vs empty in php	0.73	0.6	5619	94
difference between isset and empty php	0.97	0.3	880	15
php empty isset is_null	0.32	0.7	2920	73
isset va empty trong php	1.46	1	4152	52