regex to get first 4 characters

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
regex to get first 4 characters	0.87	0.5	5775	4	31
regex	0.67	0.2	1078	34	5
to	1.24	0.9	4080	43	2
get	0.78	1	261	15	3
first	1.06	0.1	3520	37	5
4	1.55	0.3	375	76	1
characters	1.52	0.1	222	39	10

Keyword	CPC	PCC	Volume	Score
regex to get first 4 characters	1.95	0.4	2618	38
regex extract first 4 characters	0.05	0.6	4021	67
regex first 5 characters	1.31	0.4	6427	98
regex first 3 characters	1.97	0.3	8901	25
regex get first character	1.61	0.9	9676	55
regex to get first character in string	0.38	0.1	9940	18
regex for 1 character	1.71	0.1	9954	93
regex start with character	0.09	0.4	7497	20
regex select first character	0.16	0.1	8933	33
regex last 4 characters	1.98	0.9	9947	95
regex for all characters and numbers	0.33	0.5	2974	71
regex for any number of characters	0.31	0.7	4938	69
regex for 6 characters	0.99	0.1	4029	92
regex first instance of character	0.5	0.8	2117	43
regex first character in line	0.97	1	430	82