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Security Helper

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The Security Helper file contains security related functions.

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Loading this Helper

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This helper is loaded using the following code:

-$this->load->helper('security'); - -

The following functions are available:

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Provides Cross Site Script Hack filtering. This function is an alias to the one in the -Input class. More info can be found there.

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Provides protection against directory traversal. This function is an alias to the one in the -Security class. More info can be found there.

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Permits you to create SHA1 or MD5 one way hashes suitable for encrypting passwords. Will create SHA1 by default. Examples:

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-$str = do_hash($str); // SHA1

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-$str = do_hash($str, 'md5'); // MD5
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Note: This function was formerly named dohash(), which has been deprecated in favour of do_hash().

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This is a security function that will strip image tags from a string. It leaves the image URL as plain text.

- -$string = strip_image_tags($string); - - -

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This is a security function that converts PHP tags to entities. Note: If you use the XSS filtering function it does this automatically.

- -$string = encode_php_tags($string); - - - - - - - -