php 解决公共function的问题
是用include那份php文件。然后通过某个类,在公共function外再包上一层,将function 定义成 static function。然后通过命名空间调用。
eg:
HtmlDomParser.php
<?php namespace simple_html_dom; include_once 'simple_html_dom.php'; class HtmlDomParser { /** * @return \simple_html_dom */ static public function file_get_html() {return call_user_func_array('simple_html_dom\file_get_html', func_get_args()); } /** * get html dom from string * @return \simple_html_dom */ static public function str_get_html() { return call_user_func_array('simple_html_dom\str_get_html', func_get_args()); } }
simple_html_dom.php
<?php namespace simple_html_dom; function file_get_html($url, $use_include_path = false, $context = null, $offset = -1, $maxLen = -1, $lowercase = true, $forceTagsClosed = true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN = true, $defaultBRText = DEFAULT_BR_TEXT, $defaultSpanText = DEFAULT_SPAN_TEXT) { // We DO force the tags to be terminated. $dom = new simple_html_dom(null, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText); // For sourceforge users: uncomment the next line and comment the retreive_url_contents line 2 lines down if it is not already done. $contents = file_get_contents($url, $use_include_path, $context, $offset); // Paperg - use our own mechanism for getting the contents as we want to control the timeout. //$contents = retrieve_url_contents($url); if (empty($contents) || strlen($contents) > MAX_FILE_SIZE) { return false; } // The second parameter can force the selectors to all be lowercase. $dom->load($contents, $lowercase, $stripRN); return $dom; } // get html dom from string function str_get_html($str, $lowercase = true, $forceTagsClosed = true, $target_charset = DEFAULT_TARGET_CHARSET, $stripRN = true, $defaultBRText = DEFAULT_BR_TEXT, $defaultSpanText = DEFAULT_SPAN_TEXT) { $dom = new simple_html_dom(null, $lowercase, $forceTagsClosed, $target_charset, $stripRN, $defaultBRText, $defaultSpanText); if (empty($str) || strlen($str) > MAX_FILE_SIZE) { $dom->clear(); return false; } $dom->load($str, $lowercase, $stripRN); return $dom; } // dump html dom tree function dump_html_tree($node, $show_attr = true, $deep = 0) { $node->dump($node); }