Regular Expression of javascript matching license plate number

Regular Expression of javascript matching license plate number

Matching characters include:

Jing Z 12345-jing Z12345

ZF 12345-ZF12345

Temporary 12345 temporary 12345

Rules:

First Digit: Chinese character or second digit: letter or Chinese character. Third digit can be a space.

Followed by 5-7 letters or numbers

Final result:

$ Str = "Beijing time 12345 ";

$ Rg = "/^ [\ x {4e00}-\ x {9fa5} | a-zA-Z] {1} [\ x {4e00}-\ x {9fa5} | a-zA-Z] {1} [\ s] {0, 1} [0-9a-zA-Z] {5, 7} $/u ";

$ Match = preg_match ($ rg, $ str );

Print_r ($ match );

The output result is 1.

Optimized

$ Rg = "/^ [\ x {4e00}-\ x {9fa5} | a-zA-Z] {1} [\ s] {0, 1} [0-9a-zA-Z] {5, 7} $/u ";

Where

\ X {4e00}-\ x {9fa5} is hexadecimal matching Chinese

A-zA-Z matches uppercase and lowercase letters

[\ S] {0, 1} indicates that the space is 1

[0-9a-zA-Z] {5, 7} indicates that 5-7 digits are numbers or letters.

Php Regular Expression Extension

1. extract a number from a string

$ Strs = "option-model-1 wide-swatch ModelCode-8228646 selected hover ";

$ Patterns = "/ModelCode-(\ d +)/I ";

Preg_match_all ($ patterns, $ strs, $ arr );

Print_r ($ arr );