Question

I have a query string stored in a variable and I need to strip out some stuff from it using preg_replace()

the parameters I want to strip out look like this:

&filtered_features[48][]=491

As there will be multiples of these parameters in the query string the 48 and the 491 can be any number so the regex needs to essentially match this:

'&filtered_features[' + Any number + '][]=' + Any number

Anyone know how I would do this?

Answer 1

$string = '&filtered_features[48][]=491';

$string = preg_replace('/\[\d+\]\[\]=\d+/', '[][]=', $string);

echo $string;

I assume you wanted to remove the numbers from the string. This will match a multi-variable query string as well since it just looks for [A_NUMBER][]=A_NUMBER and changes it to [][]=