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Asked: 2026-05-31T07:23:14+00:00

I want to implement a search in codeigniter using the search term in the

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I want to implement a search in codeigniter using the search term in the url string but am having trouble allowing disallowed uri characters (‘ is the main problem)

e.g. http://www.example.com/search/find/search_term/collector’s edition/category/stackoverflow

basically find ‘collector’s edition’ in category ‘stackoverflow’

This throws the URI exception error – even if I encode it with javascript codeigniter unencodes it. Obviously I don’t want to go and allow all characters.

I also want to be able to decode my data when it is returned so I can display the search term in the input box also.

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1 Answer

  1. Editorial Team

    Use a query string rather than fight against CI’s suggested allowed URI characters:

    example.com/search/?search_term=collector's+edition&category=stackoverflow

    Just make sure you have query strings ($_GET) enabled:

    $config['allow_get_array'] = TRUE; // This enables $_GET data

// The name of this item is misleading, it's not what you might think 
$config['enable_query_strings'] = FALSE; // <-- Ignore this, make sure it's FALSE

    And to grab the search term:

    $query = $this->input->get('search_term'); // No need to decode
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