How to get a substring between two strings in PHP?

Answer 1

function getInnerSubstring($string,$delim){
    // "foo a foo" becomes: array(""," a ","")
    $string = explode($delim, $string, 3); // also, we only need 2 items at most
    // we check whether the 2nd is set and return it, otherwise we return an empty string
    return isset($string[1]) ? $string[1] : '';
}

Example of use:

var_dump(getInnerSubstring('foo Hello world foo','foo'));
// prints: string(13) " Hello world "

If you want to remove surrounding whitespace, use trim. Example:

var_dump(trim(getInnerSubstring('foo Hello world foo','foo')));
// prints: string(11) "Hello world"