I want to use str_word_count() on a UTF-8 string. Is this safe in PHP? It seems to me that it should be (especially considering that there is no mb_str_word_count() ). But on php.net there are a lot of people muddying the water by presenting their own 'multibyte compatible' versions of the function. So I guess I want to know... Given that str_word_count simply counts all characte
我想在UTF-8字符串上使用str_word_count() 。 这在PHP中安全吗？ 在我看来，它应该是（特别是考虑到没有mb_str_word_count() ）。 但在php.net上，有很多人通过展示他们自己的'多字节兼容'版本的功能来混淆水。 所以我想我想知道... 鉴于str_word_count只是简单地计算所有由" " （空格）分隔的字符序列，所以对多字节字符串应该是安全的，即使它不一定知道字符序列，对吧？ UTF-8中是否有任何等效
Yesterday I stumbled over this when I modified PHP code written by someone else. I was baffled that a simple comparison ( if ($var ==! " ") ) didn't work as expected. After some testing I realized that whoever wrote that code used ==! instead of !== as comparison operator. I've never seen ==! in any language so I wondered how the hell this code could even work and did some
昨天，当我修改其他人编写的PHP代码时，我偶然发现了这一点。 我很困惑，一个简单的比较（ if ($var ==! " ") ）没有按预期工作。 经过一些测试后，我意识到，谁写的代码使用==! 而不是!==作为比较运算符。 我从来没有见过==! 在任何语言，所以我想知道该代码甚至可以工作，并做了一些测试： <?php echo "intn"; echo "1 !== 0: "; var_dump(1 !== 0); echo "1 !== 1: "; var_dump(1 !== 1); echo "1 ==! 0: "
The PHP manual states It is not possible to use $this from anonymous function before PHP 5.4.0 on the anonymous functions page. But I have found I can make it work by assigning $this to a variable and passing the variable to a use statement at the function definition. $CI = $this; $callback = function () use ($CI) { $CI->public_method(); }; Is this a good practice? Is there a bett
PHP手册说明 在PHP 5.4.0之前使用匿名函数使用$this是不可能的 在匿名功能页面上。 但是我发现我可以通过将$this分配给一个变量并将该变量传递给函数定义中的use语句来使其工作。 $CI = $this; $callback = function () use ($CI) { $CI->public_method(); }; 这是一个很好的做法吗？ 在使用PHP 5.3的匿名函数中有没有更好的方法来访问$this ？ 当你尝试调用一个受保护的或私有的方法时，它会失败，因为使用它
As taken from https://stackoverflow.com/questions/4891301/top-bad-practices-in-php Is this similar code killing kittens, too? foreach (file("longFile.txt") as $line) { // ouch! Kitten killed } ?? For those who have no idea what am I talking about: Is PHP getting longFile.txt everytime it goes to next line of file or no? Talking about this code: foreach (file("longFile.txt") as $line
从采取从https://stackoverflow.com/questions/4891301/top-bad-practices-in-php 这种类似的代码也是杀小猫吗？ foreach (file("longFile.txt") as $line) { // ouch! Kitten killed } ?? 对于那些不知道我在说什么的人： PHP每次进入文件的下一行或是否都收到longFile.txt？ 谈论这个代码： foreach (file("longFile.txt") as $line) { // something } 在链接问题中， for循环通过在每次迭代中调用coun
Possible Duplicate: In Php 5.3.0 what is the Function “Use” Identifier ? Should a sane programmer use it? I've been examining the Closures in PHP and this is what took my attention: public function getTotal($tax) { $total = 0.00; $callback = function ($quantity, $product) use ($tax, &$total) { $pricePerItem = constant(__CL
可能重复： 在Php 5.3.0中，“使用”标识符的功能是什么？ 一个理智的程序员应该使用它吗？ 我一直在检查PHP中的闭包，这是我注意到的： public function getTotal($tax) { $total = 0.00; $callback = function ($quantity, $product) use ($tax, &$total) { $pricePerItem = constant(__CLASS__ . "::PRICE_" . strtoupper($product
Just a quick question: I've seen that some PHP functions are commented at the top, using a format that is unknown to me: /** * * Convert an object to an array * * @param object $object The object to convert * @return array * */ My IDE gives me a dropdown selection for the things such as @param and @return, so it must be documented somewhere. I've tried searching google
只是一个简单的问题：我已经看到一些PHP函数在顶部被评论，使用我未知的格式： /** * * Convert an object to an array * * @param object $object The object to convert * @return array * */ 我的IDE为我提供了一个下拉选择，例如@param和@return，所以它必须记录在某处。 我试过搜索谷歌，但它不会在搜索中包含@符号。 这种评论形式是什么，我可以在哪里找到关于它的一些信息？ 这是phpDoc语法。
I have a date time in 'Ymd H:i:s', and i tried to substract the now date with the defined date +1 day to get remaining time in hours, minutes and seconds: $time = '2017-10-05 14:54:03'; $now = date('Y-m-d H:i:s'); $endTransaction = date('Y-m-d H:i:s', strtotime($time. ' + 1 day')); $dteDiff = $endTransaction - $now; echo $dteDiff; but i always get 0 as the result You are doing it wr
我在'Ymd H：i：s'中有一个日期时间，并且我试图将当前日期与定义日期+1天相减，以小时，分钟和秒计算剩余时间： $time = '2017-10-05 14:54:03'; $now = date('Y-m-d H:i:s'); $endTransaction = date('Y-m-d H:i:s', strtotime($time. ' + 1 day')); $dteDiff = $endTransaction - $now; echo $dteDiff; 但我总是得到0作为结果 你做错了。 date函数返回字符串，所以PHP不能比较任何东西。 改为使用DateTime类
A couple days ago something changed and now PHP is returning a value in the future by about 3 minutes using the date() or time() functions, example output: PHP script output php date("Ymd H:i:s"):2016-10-27 14:33:42 time(): 1477604022 Server date output done a few seconds later Thu Oct 27 14:30:06 PDT 2016 Any idea why it would be offset by a couple minutes? Figured it out
几天前，一些事情发生了变化，现在PHP使用date（）或time（）函数在将来返回一个值约3分钟的示例输出： PHP脚本输出 php日期（“Ymd H：我：S”）：2016-10-27 14:33:42 时间（）：1477604022 服务器日期输出在几秒钟后完成 星期四10月27日14:30:06 PDT 2016 任何想法为什么它会被抵消几分钟？ 找出它，出于某种原因NTP（网络时间工具）停止。 我们重新启动了NTP，问题得到解决。
I would like to get the date time interval between two dates in a time zone that uses daylight savings time. The following snipet shows the problem. $timezone = new DateTimeZone('UTC'); $from_date_obj = DateTime::createFromFormat('Y-m-d H:i:s', '2014-10-31 23:59:59',$timezone); $to_date_obj = DateTime::createFromFormat('Y-m-d H:i:s', '2014-11-20 23:47:02',$timezone); $interval = $from_date_obj
我希望在使用夏令时的时区中的两个日期之间获取日期时间间隔。 以下snipet显示问题。 $timezone = new DateTimeZone('UTC'); $from_date_obj = DateTime::createFromFormat('Y-m-d H:i:s', '2014-10-31 23:59:59',$timezone); $to_date_obj = DateTime::createFromFormat('Y-m-d H:i:s', '2014-11-20 23:47:02',$timezone); $interval = $from_date_obj->diff($to_date_obj, TRUE); print_r($interval); 对于UTC时区，这
Well, this may be a stone age question, but I got confused after reading so many questions here. A simple solution using strtotime() has been pointed out here, but the last comment about time change for the accepted answer leads me to diff function. Many of the links suggest me to diff function , something like Calculate number of hours between 2 dates in PHP. But then I saw a PHP bug that
那么这可能是一个石器时代的问题，但是在阅读了这么多问题之后我感到困惑。 这里已经指出了使用strtotime()一个简单的解决方案，但最后一个关于接受答案的时间变化的评论让我有了diff功能。 许多链接都暗示我要区分函数，比如计算PHP中两个日期之间的小时数。 但后来我看到一个PHP错误，当涉及到日期的第一个日期时，差异会显示错误的值（链接）。 此外，在Windows平台（链接）上，部分diff功能始终返回6015。 我读了