Reputation: 1467

PHP's preg_match

I am trying to get ONLY the numbers between the two brackets ([ ]) out of the string.

Here is my code:

$str = "[#123456] Some text";
preg_match('/^[#(?P<number>\w+)]/', $string, $matches);

// Returns 123456
echo $matches['number'];

Anyone able to help me out with this?

EDIT: I cleared up my question. I need to get ONLY the numbers between the brackets. The responses so far will give me numbers in the whole string.

Upvotes: 1

Answers (4)

Reputation: 3763

If you need the numbers as well as the braces around them, you can use this regex:

preg_match('/\[#\d+\]/U', $str, $matches);
echo $matches[0];

Otherwise, use

preg_match('/\[#(\d+)\]/U', $str, $matches);
echo $matches[1];

Upvotes: 2

Reputation: 2256

This will return numbers only from within this context [#....]

$str = "[#123456] Some text";
preg_match('/\[#(\d+)\]/', $str, $matches);
var_dump($matches);
echo $matches[1]; // 123456

Upvotes: 0

Reputation: 5121

Or...(edited for code to be displayed as code)

$str = preg_replace('/[^0-9]/', '', $str);

Upvotes: 0

Reputation: 7040

Use this:

preg_match('/[0-9]*/', $string, $matches);
var_dump($matches);

For more info on regular expressions, click here

Upvotes: 0