Sorry for the silly question, but I ran across code that used: <?=$MAP_OBJECT->printOnLoad();?> <?=$MAP_OBJECT->printMap();?> <?=$MAP_OBJECT->printSidebar();?> Is there anything special about <?= over <?php or just plain <? ? Rather than talking about whether short_open_tags is deprecated or not we should talk about the advantages and disadvantages when us
对不起，这个愚蠢的问题，但我跑遍了使用的代码： <?=$MAP_OBJECT->printOnLoad();?> <?=$MAP_OBJECT->printMap();?> <?=$MAP_OBJECT->printSidebar();?> 有没有什么特别的<?= over <?php或者简单的<? ？ 我们不应该讨论short_open_tags是否被弃用，而应该讨论使用短打开标签时的优缺点： 优点 使用短打开标签<? 与<?= ，它们更短，并且可能比标准的开始标记<?php和<
This question already has an answer here: What does this symbol mean in PHP <?= 4 answers <?= is short for <?php echo Add echo to your code and it will work. This is not unique to CakePHP, it's just part of PHP.
这个问题在这里已经有了答案： 这个符号在PHP中意味着什么<？= 4个答案 <?=是<?php echo缩写 将echo添加到您的代码中，它将起作用。 这不是CakePHP独有的，它只是PHP的一部分。
Possible Duplicate: What does this symbol mean in PHP <?= Reference - What does this symbol mean in PHP? In some coding I've found, I've seen the author use <?= and ?> in his code. I'm wondering if this is some fancy PHP or another language. I'm eager to know the answer as I would love to learn off of this code. I believe it could be the Fuel PHP framework but I
可能重复： 这个符号在PHP中的含义<？= 参考 - 这个符号在PHP中的含义是什么？ 在我发现的一些编码中，我看到作者在他的代码中使用了<?=和?> 。 我想知道这是一些奇特的PHP还是其他语言。 我很想知道答案，因为我很乐意学习这些代码。 我相信它可能是Fuel PHP框架，但我不确定是否有任何文档。 谢谢。 它的一个例子是： <?=SITEROOT?> 他们被称为短标签，但你应该尽可能避免使用它，因为短标签可以设
I'm writing an odds converter in PHP and came across this code for converting decimal odds to fractional ones function dec2frac($dec) { $decBase = --$dec; $div = 1; do { $div++; $dec = $decBase * $div; } while (intval($dec) != $dec); if ($dec % $div == 0) { $dec = $dec / $div; $div = $div / $div; } return $dec.'/'.$div;
我正在用PHP编写一个赔率转换器，并且遇到了将小数赔率转换为小数赔率的代码 function dec2frac($dec) { $decBase = --$dec; $div = 1; do { $div++; $dec = $decBase * $div; } while (intval($dec) != $dec); if ($dec % $div == 0) { $dec = $dec / $div; $div = $div / $div; } return $dec.'/'.$div; } 当我测试代码时，它有时会在计算中成功
According to http://php.net/manual/en/functions.anonymous.php, in PHP 5.3 $this is not accessible from inside an implicit function, even if the function is defined in a context where $this exists. Is there any way to work around this limitation? (by the way, upgrading the PHP installation on the webserver is not possible) The way I would like to use the implicit function is to define a callba
据http://php.net/manual/en/functions.anonymous.php，在PHP 5.3 $this不是来自一个隐函数内部访问，即使该功能在上下文定义$this存在。 有什么办法可以解决这个限制吗？ （顺便说一下，升级Web服务器上的PHP安装是不可能的） 我想使用隐式函数的方式是定义一个回调，它是某个对象的成员函数。 更确切地说，我想做类似的事情 $callback = function() { return $this->my_callback(); } 事实上，更好的语法将是事件 $c
I have some PHP 5.3 code which builds an array to be passed to a view. This is the code I have. # Select all this users links. $data = $this->link_model->select_user_id($this->user->id); if (count($data) > 0) { # Process the data into the table format. $table = array ( 'properties' => array ( 'delete_link_column' => 0, ),
我有一些PHP 5.3代码构建了一个数组传递给视图。 这是我的代码。 # Select all this users links. $data = $this->link_model->select_user_id($this->user->id); if (count($data) > 0) { # Process the data into the table format. $table = array ( 'properties' => array ( 'delete_link_column' => 0, ), 'callbacks' => array
I'm checking out some PHP 5.3.0 features and ran across some code on the site that looks quite funny: public function getTotal($tax) { $total = 0.00; $callback = /* This line here: */ function ($quantity, $product) use ($tax, &$total) { $pricePerItem = constant(__CLASS__ . "::PRICE_" . strtoupper($product)); $total
我正在检查一些PHP 5.3.0功能，并且在网站上运行了一些看起来很有趣的代码： public function getTotal($tax) { $total = 0.00; $callback = /* This line here: */ function ($quantity, $product) use ($tax, &$total) { $pricePerItem = constant(__CLASS__ . "::PRICE_" . strtoupper($product)); $total += ($pricePerItem * $quantity) * (
This question already has an answer here: PHP - Variable inside variable? 6 answers Arrays: A Better Method While PHP does permit you to build dynamic variable names from various other values, you probably shouldn't in this case. It seems to me that an array would be more appropriate for you: $items = array( 0, 12, 34 ); You could then access each value individually: echo $items[0]
这个问题在这里已经有了答案： PHP - 变量内部变量？ 6个答案 数组：一种更好的方法 虽然PHP确实允许您从各种其他值构建动态变量名称，但在这种情况下您可能不应该这样做。 在我看来，一个数组将更适合你： $items = array( 0, 12, 34 ); 然后您可以分别访问每个值： echo $items[0]; // 0 echo $items[1]; // 12 或者遍历整个集合： foreach ( $items as $number ) { echo $number; // 1st: 0, 2nd: 12, 3rd: 34
* Updated question from revo's answer Here is the working script with a better set of example strings to show my intent- $strings[] = 'seventy five yards out'; $strings[] = 'sixty yards out'; $strings[] = 'one hundred fifty yards out'; $inputString = 'seventy two yards out'; $inputWords = str_word_count($inputString, 1); $foundWords = []; foreach ($strings as $key => $string) { $
*更新来自雷沃回答的问题 这里有一个工作脚本，它提供了一组更好的示例字符串来显示我的意图 - $strings[] = 'seventy five yards out'; $strings[] = 'sixty yards out'; $strings[] = 'one hundred fifty yards out'; $inputString = 'seventy two yards out'; $inputWords = str_word_count($inputString, 1); $foundWords = []; foreach ($strings as $key => $string) { $stringWords = str_word_count($strin
I'm trying to convert a PHP variable to a JS variable using a little helper function that uses variable variables. To simplify, here is what I'm trying to accomplish: $project_key = 'project 1'; function to_js($variable) { echo $$variable; } to_js('$project_key'); this is supposed simply print project 1 instead i get Undefined variable: $project_key which tells me the va
我试图使用一个使用变量变量的辅助函数将PHP变量转换为JS变量。 为了简化，这里是我想要完成的： $project_key = 'project 1'; function to_js($variable) { echo $$variable; } to_js('$project_key'); 这应该只是打印 project 1 相反，我得到 Undefined variable: $project_key 它告诉我变量正在被定位，但不能从函数访问。 我如何可以访问全局变量$project_key从函数内如果只用字符串提供$project_key ？