PHP

Ask for PHP object-oriented design and data access design. for example, if one class Person has a database operation class ConnPerson, one operation is to buy a chicken, how should we design chicken information in the database? Whether to include

Why does NGINX report 502 error recently modify a website of the company and add a page. It is OK during offline testing, but 502 & nbsp; Bad & nbsp; Gateway is displayed online. I optimized the code again. The page loading speed was very fast

$ Arrarray (& nbsp; array (id & gt; 1, title & gt; Category 1), & nbsp; array (id & gt; 3, title & gt; Category 3), & nbsp; array (id & gt; 2, title & gt; classification 2 solving a question $ Arr = array ( Array ('id' => 1, 'title' => 'Category 1 ')

Php connection to the SQL file encoding problem. The last time I installed it, there was another problem. I used php to solve the problem. when I saved the data, I encountered a problem, however, I used php to modify the data encoding method. iconv (

How does php regular expression match or str_replace replace the English degree symbol? I want to convert this special symbol into English & nbsp; degree & nbsp;. I have never been able to write it properly. Does anyone know? Thank you for your help!

The webpage music player hides the mp3 file path. if you encounter a project, you must call the webpage music player at the frontend to play the music file uploaded by the user, but you cannot download it, you need to hide the file path .. The

What should I do if I want to query a large amount of data to the front-end display? For example, if mysql has million pieces of data, and then it is queried in php and displayed on the front end, how can we increase the speed? ------ Solution ------

How to generate an array similar to a TREE structure? The data is shown above. The format of the array to be grown is as follows: array (0 & gt; array (url & gt;. php, name & gt; A page, zijiedian & gt; array (0 & gt; array (url & gt; c. php, name &

Php image verification code class & lt ;? Php *** image verification code class * generates an image verification code. the verification code contains numbers and uppercase letters. the session stores the md5-encrypted verification code. ** usage: **

How to generate an admission ticket online based on the existing user registration information in the database table and create an admission ticket for each user (especially the admission ticket number and test location, could you please give me

How does Mediawiki delete the title at the top of the page? It is the "homepage", "Mediawiki: sidebar", etc. on the top of the content area on the right. for advice, it is not acceptable to try online methods, such as comment out & lt; h1 & nbsp; &

What are the values of null and non-null when creating a table in mysql? What are the values of null and non-null when creating a table in mysql? Mysql ------ solution -------------------- I usually try not to use null. if your 0 and null have

Php regular expressions do not contain duplicate tags. please kindly help me modify the regular expression in the regular expression below. the matching string must no longer contain the script tag. It took me one morning, so I couldn't understand

Do I have to use notepad to write PHP programs in windows? Black and white look dizzy, like a linux editor a nature of the software can be used? Solving... Do I have to use notepad to write PHP programs in windows? Black and white look dizzy, like a

When is sessionid generated? When a person opens this page, what will happen? & Nbsp; do you still need to wait until the backend logic contains & nbsp; session_start & nbsp; or & nbsp; operator _ SESSION [XXX? ------ Solution ------------------

Php does not use components to parse word & nbsp; use fckeditor attachments to upload word documents & nbsp; after the upload is successful, the editing area displays the word content instead of the uploaded path & nbsp; and the word format is

I want to use php to collect data from a website, but I cannot obtain data from this website. URL: www. alldatasheet. comview. jsp? Searchword78HC hope you can give it a try, as long as you can return data. I have tried it for a long time and cannot

Php array (1) & lt ;? Php initialization creation method $ stu1 [name] binghui; $ stu1 [sex] Male; $ stu1 [age] 20; print_r ($ stu1); * Array ([name] & gt; binghui [sex] & gt; php array for male players (1) Binghui [sex] => male [age] => 20) * //

Why does the PHP page call two image streaming modules? why did I build a PHP page? why does one module work? The code is as follows: & lt; div & nbsp; styleoverflow: hidden; height: 175px; width: 660px; color: # ff0000; & why can't I call two image

I would like to ask about the pdo prepare statement, which was edited by Cainiao at 2013-03-0816: 13: 15 after being edited by rainxies. this method is similar to querying multiple SQL statements at the same time, how to obtain the result set using