<?php
class Ec_View_Helpers_Mbsubstr extends Zend_View_Helper_Abstract {
	public $view;
	public function setView(Zend_View_Interface $views) {
		$this->view = $views;
	}
	public function mbsubstr($str, $start = 0, $len = 36) {
		for($i = 0; $i < $len; $i ++) {
			$temp_str = substr ( $str, 0, 1 );
			if (ord ( $temp_str ) > 127) 			// 中文的第一个ascii码大于127
			{
				$i = $i + 2;
				if ($i < $len) {
					$new_str [] = substr ( $str, 0, 3 );
					$str = substr ( $str, 3 );
				}
			} else {
				$new_str [] = substr ( $str, 0, 1 );
				$str = substr ( $str, 1 );
			}
		}
		return join ( $new_str );
	}
}
?>