PHP array strange, ask for answers

class dd { const d = 'd'; public function test() { $arr = array(); $arr['d'] = 'test'; $arr2 = array( 'a' => '1', 'b' => '2', 'c' => '3', 'd' => '4' );

Server-Side Chart solutions

Recently need to generate a PNG image of the data graph directly on the server, I know the client's solution is many, such as: Highchart, Amcharts, JS Charts, Graphael, Aweasome Chart js, D3 and so on can list hundreds of kinds, JavaScript is

PHP CGI vs. FPM relationships

Now my service is running in Nginx + FPM mode. What is the difference between PHP and FPM running with CGI? PHP Novice to these two concepts do not know very well, ask you. Reply content: Now my service is running in Nginx + FPM mode. What

[Mysql] A 1000W record table, modify the table structure, add a value for an enum field, how long will it take?

The Mysql5.5 table is InnoDB and the field is named type, is a normal field and is not included in any index/primary key. typeThe field would have two values ' a ' , ' B ' , and now I'm going to add the value ' C ' , so I have a modified statement:

What information should be stored in the session?

Given the security concerns, what user information should be stored in the session (PHP programming)? Reply content: Given the security concerns, what user information should be stored in the session (PHP programming)? Answer separately:

Select multi-line SQL statement slow query optimization

Environment: MySQL5.5 InnoDB Table post, the primary key is id The requirements are very simple, returned by ID post.name , need to return the specified number at one time, so used where id in : select `name` from `post` where `id` in(2142324,210657

About concurrency, just tested segmentfault,100 concurrency, very card.

apc

About concurrency, just tested segmentfault,100 concurrency, very card. ./http_load-p 100-s Temp Temp file in the segmentfault.com home address, I executed on the server, and then use their own computer access to Segmentfault, found very card.

JavaScript-in which language does the closure first appear? Can you tell me a little bit about history?

Many languages have this feature, but do not know the order and development history, I would like to know. Reply content: Many languages have this feature, but do not know the order and development history, I would like to know. Want to get

Programmer--confusing the relationship between fastcgi and PHP-FPM.

I check the relationship between FastCGI and php-fpm on the Internet, check for a week, the basic look at the times, it is very divergent opinions, there is no authoritative definition. Online some say, fastcgi is a protocol, PHP-FPM realize this

Symfony2 Demo configuration Failed

I want to add a page to access the link for/hello The configuration steps are as follows: 1. Add the code in the app/appkernel.php file: public function registerBundles() {$bundles[] = new Acme\HelloBundle\AcmeHelloBundle();return

Third-party interface-QQ PHP SDK Fatal error:cannot redeclare class OAuth problem

PHP SDK for download from official website http://wiki.connect.qq.com/sdk%E4%B8%8B%E8%BD%BD# Then install the configuration and click on the demo will appear below this error, what code I have not changed. Is my development environment a problem?

[Mysql] Select not, insert error problem, field encoding problem

The Mysql 5.5 table structure is: CREATE TABLE `account` ( `name` varchar(20) NOT NULL, PRIMARY KEY (`name`)) ENGINE=InnoDB DEFAULT CHARSET=gbk; nameThe current encoding of the field: CharacterSet:gbkCollation:gbk_chinese_ci At the moment my

Zf2+doctrine2 and Yii, which option would you prefer?

Individual from the frame to compare preferences ZF2, he is indeed more cumbersome, slightly lower performance, but his coupling and scalability are better, and the environment of social programming is relatively strong, the whole recently managed

Ask: Strategies for multi-version of mobile app backend interface

Because the project needs to control multiple versions of the interface available to multiple versions of the client, the interface version of the policy has been questioned. How do you make it work? Back-end Language: PHP Now I can think of the

Xampp-apache HTTP server often returns blank pages to PHP requests?

I installed on the Windows machine is a XAMPP system, in the local Apache Web server, using PHP to write server side, has been working normally. A recent project, using SSL, Zend Framework, jquery, and so on, recurring but random and non-repeatable,

linux-php GnuPG Migration issues

A PHP project uses the Linux GNUPG to encrypt the data, and now that the project needs to be migrated to another server, the encrypted information is not displayed properly. The decrypted code is as follows: $GnuPG = new

WebSocket and PHP collocation problems

To do a full-duplex communication applications, now more familiar with the language is PHP, time is more urgent, too late to learn other, want a more complete explanation of WebSocket and PHP collocation approach. Reply content: To do a

A bucket inside can't seem to set up a folder, so many documents, not easy to manage and will affect the search efficiency? What are the solutions?

A bucket inside can't seem to set up a folder, so many documents, not easy to manage and will affect the search efficiency? What are the solutions? Reply content: A bucket inside can't seem to set up a folder, so many documents, not easy to

Reorganized arrays-PHP recombinant two-dimensional arrays

How to reorganize the original two-dimensional array into the following form? Original array Array ([0] = = Array ([1–2 section] = [3–4 section] + Web site development and Maintenance _ weekly _xxxx_01-15 week _s1-205 [第5-6 festival] => ;

MySQL-How to end the execution of a script before the PHP script times out

There are a lot of functions in my PHP script that call someone else's interface, but these interfaces are sometimes very slow, which will cause my script to time out and report "504 Gateway Time-out" on the page! I want to abort the function

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