Php check string for correct format

Question

Looking for some help on how to validate a string in PHP.

My string contains:

4 NUMBER
1 LETTER
5 NUMBER

all in one entry, so like 1234A12345.

I need to make sure/validate this before inserting in the DB.

Can one of the wizard help me out there?

Madara's Ghost · Accepted Answer · 2012-10-01 17:43:12Z

3

This is a pretty simple regex:

/^\d{4}[a-zA-Z]\d{5}$/

And in case you haven't used regex in PHP before.

edited Oct 1, 2012 at 17:43

Madara's Ghost

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answered Oct 1, 2012 at 16:31

Jordan Kaye

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2 Comments

Salo Cine Over a year ago

code $regex = '/\d{4}[a-zA-Z]\d{5}/'; if (!preg_match($regex, $myref)) { die('Please ensure the reference you enter is in the correct format.'); } code

Mike Sherrill 'Cat Recall' Over a year ago

@SaloCine: You can indicate code inline by surrounding it with backticks (`), like this (actual text looks like `like this`).

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