台灣數位學習數位教學平台 RSS feed provider zh-tw http://lms.xms.com.tw/board.php?courseID=100&f=doclist&folderID= http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8678 基礎子選擇器 >p > a  // <p> 下的「直接」子元素 a屬性選擇器 []a[href^='http://']  // href 開頭為 http:// 的 a a[href$='.pdf']     // 結尾為 .pdfa[href*='jquery']   // 有出現 jqueryinput[type='text']  // type 是 text 的 inputdiv[title]          // 有 title 屬性者div[title^='my']    // title 開頭為 my 的 div位置選擇 : (pseudo-class, filter)a:firsta:oddli:last-child:not() Tue, 19 Jun 2012 21:48:58 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8667 在 form 中設定 readonly 並變顏色，測試範例 [form.setReadOnly.html、chapter7.setReadOnly.rar](function($) {    $.fn.setReadOnly = function(readonly) {        return this.filter('input:text')            .attr('readOnly', readonly)            .css('opacity', readonly ? 0.5 : 1.0)            .end();    };})(jQuery); Sat, 16 Jun 2012 09:17:19 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8666 jQuery 習慣用 $ 來使用，但 $ 卻可能被其他定義所覆蓋，例如共用 prototype.js 時解法: 將 jQeury 用 $ 封裝到立即函數中(function($) {  $.say = function(msg) {     ...  }})(jQuery);$.fn 擴充 jQuery wrapper(function($) {  $.fn.makeItBlue = function() {    return this.css('color': 'blue');  // jQuery chain  }})(jQuery);$.fn 中的 each() 的技巧(function($) {  $.fn.makeItBlue = function() {    return this.each(  // jQuery chain      function() {        $(this).css('color': 'blue');      }    );    或是直接用函數的方法進行迭代    return this.css('color':      function() {        return $(this).css('color': 'blue');      }    );  }})(jQuery); Sat, 16 Jun 2012 08:52:56 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8665 傳遞多個參數時，最好使用 json 的方式 (options hash)，尤其是可省略的參數例如:var options = {  opt1: value1,  opt2: value2,  ...}並使用 $.extend() 合併參數與預設值function foo(options) {  var settings = $.extend({    opt1: null,  // 列出所有的選項，對程式可讀性是非常有益且明智的    opt2: default2,    ...    opt9: default9  }, options || {};  // function definition ..} Sat, 16 Jun 2012 08:44:38 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8655 在 data collection 中，提供簡單的方法依序 (通常是 next)  取得元素var dataSet = (function() {  var index = 0,      data = [1, 2, 3, 4],      len = data.length;  return {    next: function() {      var el;      if (!this.hasNext()) return null;      return data[index++];    },    hasNext: function() {    },    rewind: funciton() {    },    curr: function() {    }  }})(); Sat, 09 Jun 2012 19:54:52 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8647 利用以下特性，建立模組的範例 (p100 @ JavaScript Pattern)1. 命名空間 namespace2. 立即函式3. private (closure)4. 宣告相依性if (typeof FS.lib.array === 'undefined') {// 一般 lib 開發會很嚴謹，尤其是同一家公司，應該不會不小心被覆蓋，所以可以省略檢查FS.namespace('FS.lib.array');FS.lib.array = (function() {      // 宣告相依性  var uobj = FS.lib.object,      ulang = FS.lib.lang,      // private 屬性      _str = "...";  // init    // public API  return {    inArray: function() { ... },    isArray: funciton() { ... }}());}將 private 變成 public，物件完成後，決定開放那些 APIFS.lib.array = (function() {      // 宣告相依性  var uobj = FS.lib.object,      ulang = FS.lib.lang,      // private 屬性      _str = "...";  // init    // private method  inArray = function() { ... }  isArray = fucction() { ... }  // set public API  return {    inArray: inArray,    isArray: isArray}()); Wed, 06 Jun 2012 21:39:57 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8645 var obj = {    value: 1,    inc: function() {        this.value ++;        return this;    },    add: function(v) {        this.value += v;        return this;    },    out: function() {        alert(this.value);    }};obj.inc().add(3).out(); Wed, 06 Jun 2012 17:06:10 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8643 全大寫 var MYAPP = {};建立前先檢查if (typeof MYAPP === 'undefined' {  var MYAPP = {};}orvar MYAPP = MYAPP || {};建立前檢查，利用 namespace() 的輔助 (p92 @ JavaScript Pattern)MYAPP.namespace = function(ns) {  var parts = ns.split('.'),      parent = MYAPP,      i;  if (parts[0] === "MYAPP") {    parts = parts.slice(1);  }  for (i=0; i<parts.length; i++) {    if (typeof parent[parts[i]] === 'undefined') {      parent[parts[i]] = {};    }    parent = parent[parts[i]];  }  return parent;}var mod2 = MYAPP.namespace('MYAPP.modules.mod2'); Wed, 06 Jun 2012 16:34:33 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8642 每次執行都檢查var utils = {  addListener: function(el, type, fn) {    if (typeof window.addEventListener == 'function') {      el.addEventListerner(...);    }    else { ... }  },  removeListener: function() ...}依照檢查結果定義不同的函式，避免每次都檢查var utils = {  addListener: null,  removeListener: null}if (typeof window.addEventListener == 'function') {  utils.addListener = function ...} Wed, 06 Jun 2012 16:13:25 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8641 1. 將運算包裝起來，減少全域變數var o = {  msg: (function(){    var who = "me",        what = "call";    return what + " " + who;  }()),  getMsg: function() {    return this.msg;  }}2. 沒有名字的需求，例如只執行一次的函式 init()(function() {  var days = [ ... ],  // 如果直接 var 就會產生 global 變數      today = new Date(),      msg = ...;  alert(msg);}() );3. 儲存 private 資料 Wed, 06 Jun 2012 16:05:35 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8640 第一次沒有正式定義，之後就只做更少的事情 (lazy function definition)var func = function() {  alert("init ...");  func = function() {    alert("real body ...");  }}func();  // init ...func();  // real body ... Wed, 06 Jun 2012 15:53:48 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8638 var setup = function() {  var count = 0;  // closure, provide private used internal only    return function() {      return count ++;    }}var next = setup();next();  // 1next();  // 2 Wed, 06 Jun 2012 15:42:37 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8637 // just find nodesvar findNodes = function() {  var nodes=[], found;  while (true) {    ...    nodes.push(found);  }  return nodes;}// hide nodesvar hide = function(nodes) {  var i=0, max=nodes.length;  for ( ; i<max; i++) {    nodes[i].style.display = "none";  }}使用 callbackfindNodes 的同時做 hide 來增加效率，而且保持 findNodes 的泛用性 (less coupling)var findNodes = function(callback) {  var nodes=[], found;  if (typeof callback !== "function") {    callback = false;  }  while (true) {    ...    if (callback) {      callback(found);    }    nodes.push(found);  }  return nodes;}var hide = function(node) {  node.style.display = "none";};findNodes(hide);  // findNodes(function(node) { node.style.display = "none"; });物件 method 的作用域 Callback & Scope如果 callback 是物件的方法，需要做調整 (p.67 @ JavaScript Patterns)var app = {  color: "green",  paint: function(node) { node.style.color = this.color; }}findNodes(app.paint);  // error，因為 this 會指向全域變數，因為 findNodes 是 globalfindNodes(app.paint, app);var findNodes = function(callback, obj) {  if (typeof callback === 'string') {  // findNodes('paint', app); 少打一個 app (app.paint)    callback = obj[callback];  }  if (typeof callback === 'function') {    callback.call(obj, found);  }}; Wed, 06 Jun 2012 15:28:40 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8636 this 一般會指向 global，因此如果是物件，要特別小心要用 newfunction obj() {  this.value = "v";}var o = obj();      // 錯誤，this 指向 global, browser 中通常是 windowvar o = new obj();  // this 指向物件解決方法 ~ 自我呼叫的建構式function obj() {  if (!(this instanceof obj)) {    return new obj();  }  this.value = "v";} Wed, 06 Jun 2012 12:15:12 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8629 從書上看來的，心有戚戚焉1. 可讀性2. 一致姓3. 可預料的 (簡單邏輯)4. 看起來要像是同一個人寫的5. 文件化因為，程式在許多情況下需要重新查看、修改和調整1. 有 bug 被發現2. 新增功能3. 在新環境中執行 (新的瀏覽器)4. 程式用途改變5. 移植程式碼 ...如果程式碼缺乏上述的特點，將從撰寫時的 man-hours 演變成 man-weeks .... Mon, 04 Jun 2012 22:06:35 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8561 Tue, 22 May 2012 23:10:30 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8540 減少全域變數一律使用 var未宣告就使用的變數, exfunction foo() {  var a = b = 0;  // b 未宣告，所以是global}變數宣告時同時初始化1. 在函數一開始就宣告   - 被定義的變數只須尋找單一地方   - 避免困擾，任何地方宣告都等同於一開始就宣告的特性 (hoisting)2. 初始化，提升可讀性   var a = 1,      // a 是一個數字       b = "str"; // b 是一個字串縮排4 個空白大括號永遠都加，即使只有一行的敘述 (換行)if (true) {  ...}這可以避免行尾自動加 ; 號的問題，例如function func() {   return   // return undefined, 並且以下不會執行!   {       name: "tcsu"   }}PS: 同一行則不用加，例如 if (error) return false;空格為了閱讀上更清晰的目的，每個 , 號後面要留白for (var i=0; i<max; i++) { ... }命名建構式微首字母大寫， var a = new Person(); 看名稱就可以區隔函數變數: lastIndex (camel case，第二個詞以後的第一個字母大寫)全域變數: gMax (g 開頭，容易被識別出來，盡量不使用全域變數)常數: PI = 3.14 (全大寫)private: _name (底線開頭，警告開發者不要直接使用) Sun, 20 May 2012 23:21:12 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8538 迴圈 for，判斷式要先計算取得常數尤其在一些 HTML Collectionfor (var i=0; i<document.images.length; i++) { ... } // 速度很慢，每次都會重新檢查網頁for (var i=0, max=document.images.length; i<max; i++) { ... } Sun, 20 May 2012 09:42:21 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8536 避免隱含的型別轉換，用 === 取代 ==false == 0 (true)false === 0 (false)使用 parseInt() 要加 base，可以改用 Number()尤其在 form 中的日期 (0 開頭會解釋為 8 進位)，例如var m = '09';m = parseInt(09);  // m = 0, 因為 09 不是 8 進位m = Number(m);  // 速度更快避免使用 eval()不安全，尤其 ajax 的 json如果一定要，用 JSON.parse 或 Json.org 提供的 libsetTimeout() 比較好的寫法因為字串會被視為程式碼去解析setTimeout("func()", 1000);     >> setTimeout(func, 1000);setTimeout("func(1, 2)", 1000); >> setTimeout(function() {func(1, 2);}, 1000); Sun, 20 May 2012 09:23:08 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=8518 online js + jqueryhttp://jsfiddle.net/cUSVj/ online json parserhttp://json.parser.online.fr/ Fri, 18 May 2012 10:28:11 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5791 http://drupal.org/node/206759   if ($op == 'view') {    $block['subject'] = 'OnThisDate Subject';      $block['content'] = 'Onthisdate content';    return $block;} Mon, 09 May 2011 15:06:38 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5790 http://drupal.org/node/206758   function onthisdate_block($op = 'list', $delta = 0, $edit = array()) {    if ($op == "list") {    // Generate listing of blocks from this module, for the admin/block page    $block = array();    $block[0]["info"] = t('On This Date');    return $block;  } } Mon, 09 May 2011 15:01:10 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5789 http://drupal.org/node/206757   function onthisdate_perm() {  return array('access onthisdate content');} Mon, 09 May 2011 14:55:27 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5788 http://drupal.org/node/206756   function onthisdate_help($path, $arg) {  $output = '';  //declare your output variable  switch ($path) {    case "admin/help#onthisdate":      $output = '<p>'.  t("Displays links to nodes created on this date") .'</p>';      break;  }  return $output;} Mon, 09 May 2011 14:54:42 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5787 http://drupal.org/node/206756   name = Module namedescription = A description of what your module does.core = 6.x Mon, 09 May 2011 14:43:07 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5786 1. name:   onthisdate 2. folder: sites/all/modules/onthisdate 3. file:   onthisdate.module Mon, 09 May 2011 14:41:13 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5781 http://drupal.org/node/206761    1. Create the configuration function   function onthisdate_admin() {  $form = array();  $form['onthisdate_maxdisp'] = array(    '#type' => 'textfield',    '#title' => t('Maximum number of links'),    '#default_value' => variable_get('onthisdate_maxdisp', 3),    '#size' => 2,    '#maxlength' => 2,    '#description' => t("The maximum number of links to display in the block."),    '#required' => TRUE,  );  return system_settings_form($form);}     2. define a URL by hook_menu   function onthisdate_menu() {  $items = array();  $items['admin/settings/onthisdate'] = array(    'title' => t('On this date module settings'),    'description' => t('Description of your On this date settings page'),    'page callback' => 'drupal_get_form',    'page arguments' => array('onthisdate_admin'),    'access arguments' => array('access administration pages'),    'type' => MENU_NORMAL_ITEM,   );  return $items;} ** clear the menu cache to recognize the new URL (Administer >> Site Configuration >> Performance)     3. Validate the user input (a "_validate" suffix)   function onthisdate_admin_validate($form, &$form_state) {  $maxdisp = $form_state['values']['onthisdate_maxdisp'];  if (!is_numeric($maxdisp)) {...} }         Sun, 08 May 2011 23:30:27 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5780 http://drupal.org/node/206759   function onthisdate_block($op = "list", $delta = 0) {   if ($op == "view") {     $block["subject"] = t("Subject of On This Date");     $block["subject"] = t("Content of OnThisDate");     return $block;                   } Sun, 08 May 2011 22:49:46 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5779 http://drupal.org/node/206758   function onthisdate_block($op = 'list', $delta = 0, $edit = array()) {    if ($op == "list") { // admin/block    $block = array();    $block[0]["info"] = t('On This Date');    return $block;  } } Sun, 08 May 2011 22:38:59 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5778 http://api.drupal.org/api/drupal/includes--module.inc/group/hooks/6   Allow modules to interact with the Drupal core. Drupal's module system is based on the concept of "hooks". A hook is named moduleName_hookName Sun, 08 May 2011 22:27:47 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5777 http://drupal.org/node/206757   define module permissions (Administer / User management / Permissions page) function onthisdate_perm() {  return array('access onthisdate content');} Sun, 08 May 2011 22:18:55 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5774 http://drupal.org/node/206756   function onthisdate_help($path, $arg) {  $output = '';  //declare your output variable  switch ($path) {    case "admin/help#onthisdate":      $output = '<p>'.  t("Displays links to nodes created on this date") .'</p>';      break;  }  return $output;} Sun, 08 May 2011 20:10:29 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5773 http://drupal.org/node/206756   name = On this datedescription = A block module that lists links to content created one week ago.core = 6.x dependencies, package (optional) Sun, 08 May 2011 19:57:29 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5772 http://drupal.org/node/206754   1. name:   onthisdate 2. folder: sites/all/modules/onthisdate (the preferred place for non-core modules) 3. file:   onthisdate.module Sun, 08 May 2011 19:53:04 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5706 function node_invoke_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {  $return = array();  foreach (module_implements('nodeapi') as $name) {    $function = $name .'_nodeapi';    $result = $function($node, $op, $a3, $a4);    if (isset($result) && is_array($result)) {      $return = array_merge($return, $result);    }    else if (isset($result)) {      $return[] = $result;    }  }  return $return;}   function module_implements() {   $list = module_list(FALSE, TRUE, $sort);  foreach ($list as $module) {    if (module_hook($module, $hook)) {      $implementations[$hook][] = $module;    }  }   return (array)$implementations[$hook]; } Sat, 30 Apr 2011 16:21:10 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5704 function node_invoke(&$node, $hook, $a2 = NULL, $a3 = NULL, $a4 = NULL) {  if (node_hook($node, $hook)) {    $module = node_get_types('module', $node);    if ($module == 'node') {      $module = 'node_content'; // Avoid function name collisions.    }    $function = $module .'_'. $hook;    return ($function($node, $a2, $a3, $a4));  }} Sat, 30 Apr 2011 16:19:06 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5703 function node_hook(&$node, $hook) {  $module = node_get_types('module', $node);  if ($module == 'node') {    $module = 'node_content'; // Avoid function name collisions.  }  return module_hook($module, $hook);  // return function_exists($module .'_'. $hook);}} Sat, 30 Apr 2011 16:18:20 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5702 function node_build_content($node, $teaser = FALSE, $page = FALSE) {   if (node_hook($node, 'view'))  // node_content_view     $node = node_invoke($node, 'view', $teaser, $page);   else    $node = node_prepare($node, $teaser);     node_invoke_nodeapi($node, 'view', $teaser, $page);   return $node;} Sat, 30 Apr 2011 16:11:01 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5701 function node_view($node, $teaser = FALSE, $page = FALSE, $links = TRUE) {  $node = node_build_content($node, $teaser, $page);   $content = drupal_render($node->content);  node_invoke_nodeapi($node, 'alter', $teaser, $page);   return theme('node', $node, $teaser, $page);} Sat, 30 Apr 2011 16:08:11 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5700 function node_show($node, $cid, $message = FALSE) {  $output = node_view($node, FALSE, TRUE);   if (function_exists('comment_render') && $node->comment) {    $output .= comment_render($node, $cid);  }   node_tag_new($node->nid); // Update the 'last viewed' timestamp   return $output;} Sat, 30 Apr 2011 16:04:33 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5699 function node_page_view($node, $cid = NULL) {  drupal_set_title(check_plain($node->title));  return node_show($node, $cid);} Sat, 30 Apr 2011 16:00:09 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5698 function node_page_default() {   while ($node = db_fetch_object($result)) {    $output .= node_view(node_load($node->nid), 1);    $num_rows = TRUE;  }   if ($num_rows) {    $feed_url = url('rss.xml', array('absolute' => TRUE));    drupal_add_feed($feed_url, variable_get('site_name', 'Drupal') .' '. t('RSS'));    $output .= theme('pager', NULL, variable_get('default_nodes_main', 10));  }     drupal_set_title('');   return $output; } Sat, 30 Apr 2011 15:42:39 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5696 1. require_once './includes/bootstrap.inc'; define constant declare libraries 2. drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL); require_once './includes/common.inc'; // const & lib_drupal_bootstrap_full()   require_once './includes/theme.inc';  require_once './includes/pager.inc';  require_once './includes/menu.inc';  require_once './includes/tablesort.inc';  require_once './includes/file.inc';  require_once './includes/unicode.inc';  require_once './includes/image.inc';  require_once './includes/form.inc';  require_once './includes/mail.inc';  require_once './includes/actions.inc';     drupal_set_header('Content-Type: text/html; charset=utf-8');   unicode_check();   fix_gpc_magic();   module_load_all();   3.    Sat, 30 Apr 2011 14:31:57 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5695 1. constant define   2. function timer_start($name) timer_read($name) timer_stop($name) conf_path($require_settings = TRUE, $reset = FALSE) drupal_unset_globals() drupal_valid_http_host($host) conf_init() drupal_get_filename($type, $name, $filename = NULL)   variable_init($conf = array()) variable_get($name, $default) variable_set($name, $value) variable_del($name)    page_get_cache($status_only = FALSE) bootstrap_invoke_all($hook) drupal_load($type, $name)   drupal_page_header() drupal_page_cache_header($cache)   bootstrap_hooks() drupal_unpack($obj, $field = 'data') referer_uri()   check_plain($text) drupal_validate_utf8($text) request_uri() watchdog($type, $message, $variables = array(), $severity = WATCHDOG_NOTICE, $link = NULL) drupal_set_message($message = NULL, $type = 'status', $repeat = TRUE) drupal_get_messages($type = NULL, $clear_queue = TRUE) drupal_is_denied($type, $mask) drupal_anonymous_user($session = '') drupal_bootstrap($phase) _drupal_bootstrap($phase) drupal_maintenance_theme() get_t() drupal_init_language() language_list($field = 'language', $reset = FALSE) language_default($property = NULL) ip_address() Sat, 30 Apr 2011 14:18:43 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5694 /** * Unserializes and appends elements from a serialized string. * * @param $obj *   The object to which the elements are appended. * @param $field *   The attribute of $obj whose value should be unserialized. */function drupal_unpack($obj, $field = 'data') {  if ($obj->$field && $data = unserialize($obj->$field)) {    foreach ($data as $key => $value) {      if (!empty($key) && !isset($obj->$key)) {        $obj->$key = $value;      }    }  }  return $obj;} Sat, 30 Apr 2011 12:05:20 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5691 1. get user info db_query('SELECT * FROM {users} u WHERE '. implode(' AND ', $query), $params);   2. get user role db_query('SELECT r.rid, r.name FROM {role} r INNER JOIN {users_roles} ur ON ur.rid = r.rid WHERE ur.uid = %d', $user->uid);   /** * Fetch a user object. * * @param $user_info *   Information about the user to load, consisting of one of the following: *   - An associative array whose keys are fields in the {users} table (such as *     uid, name, pass, mail, status) and whose values are the field's value. *   - A numeric user ID. * * @return *   A fully-loaded $user object upon successful user load or FALSE if user *   cannot be loaded. */function user_load($user_info = array()) {  // Dynamically compose a SQL query:  $query = array();  $params = array();   if (is_numeric($user_info)) {    $user_info = array('uid' => $user_info);  }  elseif (!is_array($user_info)) {    return FALSE;  }   foreach ($user_info as $key => $value) {    if ($key == 'uid' || $key == 'status') {      $query[] = "$key = %d";      $params[] = $value;    }    else if ($key == 'pass') {      $query[] = "pass = '%s'";      $params[] = md5($value);    }    else {      $query[]= "LOWER($key) = LOWER('%s')";      $params[] = $value;    }  }  $result = db_query('SELECT * FROM {users} u WHERE '. implode(' AND ', $query), $params);   if ($user = db_fetch_object($result)) {    $user = drupal_unpack($user);     $user->roles = array();    if ($user->uid) {      $user->roles[DRUPAL_AUTHENTICATED_RID] = 'authenticated user';    }    else {      $user->roles[DRUPAL_ANONYMOUS_RID] = 'anonymous user';    }    $result = db_query('SELECT r.rid, r.name FROM {role} r INNER JOIN {users_roles} ur ON ur.rid = r.rid WHERE ur.uid = %d', $user->uid);    while ($role = db_fetch_object($result)) {      $user->roles[$role->rid] = $role->name;    }    user_module_invoke('load', $user_info, $user);  }  else {    $user = FALSE;  }   return $user;} Sat, 30 Apr 2011 11:27:07 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5690 1. hook_action_info() - describe the action to Drupal   function user_action_info()   return array(    'user_block_user_action' => array(      'description' => t('Block current user'),      'type' => 'user',      'configurable' => FALSE,      'hooks' => array(        'nodeapi' => array('presave', 'delete', 'insert', 'update', 'view'),        'comment' => array('view', 'insert', 'update', 'delete'),        'user' => array('logout'),        ),      ),     'user_block_ip_action' => array(      ...    ),  );}   1. http://drupal6/admin/settings/actions  2. 'user_block_user_action' function name of the action (key) modulename + description of what the function does + '_action' user + block user + action       2. Writing an action function user_block_user_action(&$object, $context = array()) {  // get the uid from the object  if (isset($object->uid)) {    $uid = $object->uid;  }  elseif (isset($context['uid'])) {    $uid = $context['uid'];  }  else {    global $user;    $uid = $user->uid;  }  // make sure we have a user record  if ($uid) {    $user = user_load($uid);    // block the user    db_query("UPDATE {users} SET status = 0 WHERE uid = %d", $uid);    // log out the user    sess_destroy_uid($uid);    // record a message noting the action taken    watchdog('action', 'Blocked user %name / uid=%uid.', array('%name' => check_plain($user->name), '%uid' => $uid));  }}?> Sat, 30 Apr 2011 11:03:31 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5688 1. includes/actions.inc The actions engine, which executes actions   2. modules/trigger.moduleThe dispatcher for actions   3. modules/system.moduleThe configuration screens for adding, removing, and configuring individual actions   4. modules/trigger.moduleThe interface for assigning actions to events (that is, hooks)   5. individual modulesThe hook that describes actions (hook_actions_info()) and the actions themselves live inEx. Actions that affect nodes, like the "Publish node" action, live in node.module Sat, 30 Apr 2011 10:40:49 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5541 1. exec()2. test() Mon, 18 Apr 2011 01:04:17 +0800 http://lms.xms.com.tw/board.php?courseID=100&f=doc&cid=5540 1. search()比對並傳回位置，return -1 或 第一個符合的子字串起點的位置ex. var pos = "Javascript".search(/script/i); // return 42. replace()比對並取代，ex.1. text.replace(/javascript/gi, "JavaScript");2. text.replace(/"([^"]*)"/g, "'$1'");3. match()比對並傳回陣列4. split()分割字串 Mon, 18 Apr 2011 00:55:23 +0800