PHP Search Function to add to eephplib

search_string_allocator.php

<?php

function search_string_allocator($search_string, $safe_length = 3)
{
    $search_string = strtolower(trim($search_string));

    if (strlen($search_string) >= $safe_length)
    {
        $removals = array
        (
            '~', '~', '@', '#', '$', '%', '^', '&', '*', '(', ')', '-', '_', '+', '=',
            ',', '.', '?', '/', ':', ";", '"', '\'', '[', '{', ']', '}', '|', '\\'
        );

        $search_string   = str_replace($removals, ' ', $search_string);
        $search_keywords = explode(' ', $search_string);
        $keywords        = array_filter($search_keywords, function ($data) use ($safe_length)
        {
            if (strlen($data) >= $safe_length)
            {
                return $data;
            }
        });

        return (array) array_values($keywords);
    }
}

// ?q=this%20is%20my%20name.is%20cool%20-%20name-caller

/*
Array
(
    [0] => this
    [1] => name
    [2] => cool
    [3] => name
    [4] => caller
)
*/