(传个破图片真费劲)言归正传这是别人发的一个帖子但是我实在想知道这些问题答案(越清楚越好)所以我自己在补发一次,望各位大仙多多支持,谢谢
众仙家快快施展神通吧
回复讨论(解决方案)
这么大力度怎么还没有人回啊
你把题目抄一遍,可能就有人回应了
你把题目抄一遍,可能就有人回应了
若非他们看不到图片?
我都不看,我又不是 OCR
我都不看,我又不是 OCR
还是不理解什么是OCR呢?
OCR (Optical Character Recognition,光学字符识别)
你把题目抄一遍,可能就有人回应了
这句话我不懂什么意思?
众仙家有没有“良厕”啊!但说无妨凡是参与留言者都有分拿
据说参与留言者都有分拿.
因此我留言了
凡参与者都有奖!
为了这句话,我来留言了
希望能得奖
我只会动感光波可以得奖吗
第七题
dbmopen() ;dbase_open() ;filepro() ;filepro_rowcount() ;filepro_retrieve() ;
首先感谢众仙家捧场其次是有没有其他大仙有“良厕”啊
参与的一定会有奖的
参与有奖 参与有奖~~~~~~~
我是来参与的。。。
我是来蹭分的!
若有那个“大虾”可以回答出几个来赶快大显身手吧。今天18点之前结贴福利就没喽当然捧场同学还会予以奖励的
就知道第十个
这是全能型的吗?前端后端都有了。还有运维。。。
1.
<?php class Printer { //代理对象,一台打印机 public function printSth() { echo 'I can print <br>'; } // some more function below // ... } class TextShop { //这是一个文印处理店,只文印,卖纸,不照相 private $printer; public function __construct(Printer $printer) { $this->printer = $printer; } public function sellPaper() { //卖纸 echo 'give you some paper <br>'; } public function __call($method, $args) { //将代理对象有的功能交给代理对象处理 if(method_exists($this->printer, $method)) { $this->printer->$method($args); } } } class PhotoShop { //这是一个照相店,只文印,拍照,不卖纸 private $printer; public function __construct(Printer $printer) { $this->printer = $printer; } public function takePhotos() { //照相 echo 'take photos for you <br>'; } public function __call($method, $args) { //将代理对象有的功能交给代理对象处理 if(method_exists($this->printer, $method)) { $this->printer->$method($args); } } } $printer = new Printer(); $textShop = new TextShop($printer); $photoShop = new PhotoShop($printer); $textShop->printSth(); $photoShop->printSth(); ?>
2.在可点击的位置上加Google Analytics
3.
减少数据访问(减少磁盘访问)
返回更少数据(减少网络传输或磁盘访问)
减少交互次数(减少网络传输)
减少服务器CPU开销(减少CPU及内存开销)
利用更多资源(增加资源)
4.200w太少,随便导。大数据可以分表分批导
5.
function Person(){ this.name = “Mike”; this.sayGoodbye = function(){"alert(GoodBye!");};}Person.prototype.sayHello = function(){alert(”Hello!”);};function Student(){}Student.prototype = new Person();
6.低偶合,高内聚。
7.chdir, move_uploaded_file, chgrp, parse_ini_file, chown, rmdir, copy, rename, fopen, require, highlight_file, show_source, include, symlink, link, touch, mkdir, unlink
9.
$file = "temp.txt"; $fp = fopen($file , 'w'); if(flock($fp , LOCK_EX)){ fwrite($fp , "abc\n"); flock($fp , LOCK_UN); } fclose($fp);
10.
echo strtotime('2014-9-23 10:30:25');
蹭蹭分
这么大力度怎么还没有人回啊
回这么多了…… 3 优化数据库 建索引
4mysqldump 导出
10 strtotime()

Calculating the total number of elements in a PHP multidimensional array can be done using recursive or iterative methods. 1. The recursive method counts by traversing the array and recursively processing nested arrays. 2. The iterative method uses the stack to simulate recursion to avoid depth problems. 3. The array_walk_recursive function can also be implemented, but it requires manual counting.

In PHP, the characteristic of a do-while loop is to ensure that the loop body is executed at least once, and then decide whether to continue the loop based on the conditions. 1) It executes the loop body before conditional checking, suitable for scenarios where operations need to be performed at least once, such as user input verification and menu systems. 2) However, the syntax of the do-while loop can cause confusion among newbies and may add unnecessary performance overhead.

Efficient hashing strings in PHP can use the following methods: 1. Use the md5 function for fast hashing, but is not suitable for password storage. 2. Use the sha256 function to improve security. 3. Use the password_hash function to process passwords to provide the highest security and convenience.

Implementing an array sliding window in PHP can be done by functions slideWindow and slideWindowAverage. 1. Use the slideWindow function to split an array into a fixed-size subarray. 2. Use the slideWindowAverage function to calculate the average value in each window. 3. For real-time data streams, asynchronous processing and outlier detection can be used using ReactPHP.

The __clone method in PHP is used to perform custom operations when object cloning. When cloning an object using the clone keyword, if the object has a __clone method, the method will be automatically called, allowing customized processing during the cloning process, such as resetting the reference type attribute to ensure the independence of the cloned object.

In PHP, goto statements are used to unconditionally jump to specific tags in the program. 1) It can simplify the processing of complex nested loops or conditional statements, but 2) Using goto may make the code difficult to understand and maintain, and 3) It is recommended to give priority to the use of structured control statements. Overall, goto should be used with caution and best practices are followed to ensure the readability and maintainability of the code.

In PHP, data statistics can be achieved by using built-in functions, custom functions, and third-party libraries. 1) Use built-in functions such as array_sum() and count() to perform basic statistics. 2) Write custom functions to calculate complex statistics such as medians. 3) Use the PHP-ML library to perform advanced statistical analysis. Through these methods, data statistics can be performed efficiently.

Yes, anonymous functions in PHP refer to functions without names. They can be passed as parameters to other functions and as return values of functions, making the code more flexible and efficient. When using anonymous functions, you need to pay attention to scope and performance issues.


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