<?php
/**
 * Squiz_Sniffs_PHP_ForbiddenFunctionsSniff.
 *
 * PHP version 5
 *
 * @category  PHP
 * @package   PHP_CodeSniffer
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @author    Marc McIntyre <mmcintyre@squiz.net>
 * @copyright 2006-2011 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
 * @link      http://pear.php.net/package/PHP_CodeSniffer
 */

if (class_exists('Generic_Sniffs_PHP_ForbiddenFunctionsSniff', true) === false) {
    throw new PHP_CodeSniffer_Exception('Class Generic_Sniffs_PHP_ForbiddenFunctionsSniff not found');
}

/**
 * Squiz_Sniffs_PHP_ForbiddenFunctionsSniff.
 *
 * Discourages the use of alias functions that are kept in PHP for compatibility
 * with older versions. Can be used to forbid the use of any function.
 *
 * @category  PHP
 * @package   PHP_CodeSniffer
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @author    Marc McIntyre <mmcintyre@squiz.net>
 * @copyright 2006-2011 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence
 * @version   Release: 1.3.3
 * @link      http://pear.php.net/package/PHP_CodeSniffer
 */
class Squiz_Sniffs_PHP_ForbiddenFunctionsSniff extends Generic_Sniffs_PHP_ForbiddenFunctionsSniff
{

    /**
     * A list of forbidden functions with their alternatives.
     *
     * The value is NULL if no alternative exists. IE, the
     * function should just not be used.
     *
     * @var array(string => string|null)
     */
    protected $forbiddenFunctions = array(
                                     'sizeof'          => 'count',
                                     'delete'          => 'unset',
                                     'print'           => 'echo',
                                     'is_null'         => null,
                                     'create_function' => null,
                                    );


    /**
     * Returns an array of tokens this test wants to listen for.
     *
     * @return array
     */
    public function register()
    {
        $tokens = parent::register();
        $tokens[] = T_PRINT;
        return $tokens;

    }//end register()


}//end class

?>
