Regex in php preg_match function

Question

I have a regex pattern

<?php 
if(preg_match("/shop[0-9]/", '/shop43')){
    echo "YES";
}
else
{
    echo "NO";
}
 ?>

It is working, but when i write

if(preg_match("/shop[0-9]/", '/shop43d')){
    echo "YES";
}

it is working too.The problem is that i need to have ony digits after word "shop",for example shop1,shop2,...,shop123 What I need to change in my pattern?) I would be very thankful if somebody could give me a link with some examples of my problem in regex.Thank you :)

Engineer · Accepted Answer · 2012-07-25 11:52:39Z

2

Try this pattern instead:

/^\/shop[0-9]+$/

You can simply use \d instead of [0-9]:

/^\/shop\d+$/

Explanation:

As / used for indicating start/end of expression you have to escape it(to not indicate the end of the expression) -> \/.
^ anchor matches at the start of the string the regex pattern is applied to.
$ anchor matches at the end of the string the regex pattern is applied to.
+ repeats the previous item once or more.

_{See more info about reg-exps here.}

edited Jul 25, 2012 at 11:52

answered Jul 25, 2012 at 11:39

Engineer

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1 Comment

DonCallisto Over a year ago

+1, do exactly what you've done but you was faster than me :)

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