使用Smarty模板2.x注入变量报错

/* replace special blocks by "{php}" */
$source_content = preg_replace($search.'e', "'"
. $this->_quote_replace($this->left_delimiter) . 'php'
. "' . str_repeat(\"\n\", substr_count('\\0', \"\n\")) .'"
. $this->_quote_replace($this->right_delimiter)
. "'"
, $source_content);

// 解决：preg_replace(): The /e modifier is deprecated, use preg_replace_callback ins
$source_content = preg_replace_callback($search, create_function ('$matches', "return '"
. $this->_quote_replace($this->left_delimiter) . 'php'
. "' . str_repeat(\"\n\", substr_count('\$matches[1]', \"\n\")) .'"
. $this->_quote_replace($this->right_delimiter)
. "';")
, $source_content);