CODEWITHSUNDEEP
phpregex
khmer2040
khmer2040

Reputation: 157

PHP Reg Ex how to preg_match exactly 2 or 3 digits in a street address

I am trying to figure out the reg ex to match a street address. The format of the street address must be 2 or 3 digit number followed by a text string of the street name then ending with "Street" or "Road".

So a valid address can be:

Invalid address would be:


preg_match("/^[0-9]{2,3} *[a-zA-Z] *(Street|Road)$/", $_POST['street'])

I've tried multiple ways to approach this and can't get the digits in to work correctly. If I try /^[0-9]{2,3}$/ it works by itself but when I add in the string expressions, it messes it up. Also using that formula without ^ or $, it'll validate any amount of digits beyond 3 digits long. So 1234, 12345, etc will work.

Upvotes: 3

Views: 4845

Answers (1)

anubhava
anubhava

Reputation: 785108

You don't have correct regex to match street name that comes after first digits since [a-zA-Z] will match single alphabet only

Use this regex:

preg_match("/^[0-9]{2,3} +[a-zA-Z]+ +(Street|Road)$/", $_POST['street']);

Difference is [a-zA-Z]+ instead of [a-zA-Z]

PS: Also changes to + instead of * since at least 1 space is needed between these components.

Upvotes: 1

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