public static function registerAutoload()
    {
        $autoload = array('HTMLPurifier_Bootstrap', 'autoload');
        if (($funcs = spl_autoload_functions()) === false) {
            spl_autoload_register($autoload);
        } elseif (function_exists('spl_autoload_unregister')) {
            if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
                // prepend flag exists, no need for shenanigans
                spl_autoload_register($autoload, true, true);
            } else {
                $buggy  = version_compare(PHP_VERSION, '5.2.11', '<');
                $compat = version_compare(PHP_VERSION, '5.1.2', '<=') &&
                          version_compare(PHP_VERSION, '5.1.0', '>=');
                foreach ($funcs as $func) {
                    if ($buggy && is_array($func)) {
                        // :TRICKY: There are some compatibility issues and some
                        // places where we need to error out
                        $reflector = new ReflectionMethod($func[0], $func[1]);
                        if (!$reflector->isStatic()) {
                            throw new Exception(
                                'HTML Purifier autoloader registrar is not compatible
                                with non-static object methods due to PHP Bug #44144;
                                Please do not use HTMLPurifier.autoload.php (or any
                                file that includes this file); instead, place the code:
                                spl_autoload_register(array(\'HTMLPurifier_Bootstrap\', \'autoload\'))
                                after your own autoloaders.'
                            );
                        }
                        // Suprisingly, spl_autoload_register supports the
                        // Class::staticMethod callback format, although call_user_func doesn't
                        if ($compat) {
                            $func = implode('::', $func);
                        }
                    }
                    spl_autoload_unregister($func);
                }
                spl_autoload_register($autoload);
                foreach ($funcs as $func) {
                    spl_autoload_register($func);
                }
            }
        }
    }
public static function registerAutoload()
    {
        $autoload = array('HTMLPurifier_Bootstrap', 'autoload');
        if (($funcs = spl_autoload_functions()) === false) {
            spl_autoload_register($autoload);
        } elseif (function_exists('spl_autoload_unregister')) {
            if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
                // prepend flag exists, no need for shenanigans
                spl_autoload_register($autoload, true, true);
            } else {
                $buggy  = version_compare(PHP_VERSION, '5.2.11', '<');
                $compat = version_compare(PHP_VERSION, '5.1.2', '<=') &&
                          version_compare(PHP_VERSION, '5.1.0', '>=');
                foreach ($funcs as $func) {
                    if ($buggy && is_array($func)) {
                        // :TRICKY: There are some compatibility issues and some
                        // places where we need to error out
                        $reflector = new ReflectionMethod($func[0], $func[1]);
                        if (!$reflector->isStatic()) {
                            throw new Exception(
                                'HTML Purifier autoloader registrar is not compatible
                                with non-static object methods due to PHP Bug #44144;
                                Please do not use HTMLPurifier.autoload.php (or any
                                file that includes this file); instead, place the code:
                                spl_autoload_register(array(\'HTMLPurifier_Bootstrap\', \'autoload\'))
                                after your own autoloaders.'
                            );
                        }
                        // Suprisingly, spl_autoload_register supports the
                        // Class::staticMethod callback format, although call_user_func doesn't
                        if ($compat) {
                            $func = implode('::', $func);
                        }
                    }
                    spl_autoload_unregister($func);
                }
                spl_autoload_register($autoload);
                foreach ($funcs as $func) {
                    spl_autoload_register($func);
                }
            }
        }
    }
public static function registerAutoload ( ) { $ autoload = array ( 'HTMLPurifier_Bootstrap' , 'autoload' ) ; if ( ( $ funcs = spl_autoload_functions ( ) ) === false ) { spl_autoload_register ( $ autoload ) ; } elseif ( function_exists ( 'spl_autoload_unregister' ) ) { if ( version_compare ( PHP_VERSION , '5.3.0' , '>=' ) ) { // prepend flag exists, no need for shenanigans
 spl_autoload_register ( $ autoload , true , true ) ; } else { $ buggy = version_compare ( PHP_VERSION , '5.2.11' , '<' ) ; $ compat = version_compare ( PHP_VERSION , '5.1.2' , '<=' ) && version_compare ( PHP_VERSION , '5.1.0' , '>=' ) ; foreach ( $ funcs as $ func ) { if ( $ buggy && is_array ( $ func ) ) { // :TRICKY: There are some compatibility issues and some
 // places where we need to error out
 $ reflector = new ReflectionMethod ( $ func [ 0 ] , $ func [ 1 ] ) ; if ( ! $ reflector -> isStatic ( ) ) { throw new Exception ( 'HTML Purifier autoloader registrar is not compatible
                                with non-static object methods due to PHP Bug #44144;
                                Please do not use HTMLPurifier.autoload.php (or any
                                file that includes this file); instead, place the code:
                                spl_autoload_register(array(\'HTMLPurifier_Bootstrap\', \'autoload\'))
                                after your own autoloaders.' ) ; } // Suprisingly, spl_autoload_register supports the
 // Class::staticMethod callback format, although call_user_func doesn't
 if ( $ compat ) { $ func = implode ( '::' , $ func ) ; } } spl_autoload_unregister ( $ func ) ; } spl_autoload_register ( $ autoload ) ; foreach ( $ funcs as $ func ) { spl_autoload_register ( $ func ) ; } } } }
"Pre-registers" our autoloader on the SPL stack.
Pre - registers our autoloader on the SPL stack .