Keyword Analysis & Research: php check string empty or null

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
php check string empty or null	1.93	0.9	418	9	30
php	0.29	0.6	9160	38	3
check	1.92	0.8	7747	80	5
string	1.21	0.2	6608	28	6
empty	1.79	0.5	8003	22	5
or	0.38	0.4	3146	80	2
null	1.88	1	9914	54	4

Keyword	CPC	PCC	Volume	Score
php check string empty or null	1.26	0.6	8140	33