PHP

In CodeIgniter, database usage is very frequent. You can use the database class that comes with the framework to perform database operations conveniently.Initialize the database class to load and initialize the database class according to your

Many forms use the most things. new users often insert data into the database repeatedly when submitting the form. this is of course not what we want. So how to deal with it? Here are two methods to deal with it! (1) use the javascript script to

& Amp; nbsp; ADODB is an intermediate function component used by PHP to access the database. PHP does not standardize the storage of databases. each database uses another different and incompatible application interface (API ). To fill this

I will not talk about the introduction of ADODB. if you are not clear about it, you can refer to the following two php tutorials: 1. introduction to ADODB and its connection to a simple mysql instance 2. summary of ADODB query statements (1 ). use

Php file read/write operations are very convenient and important. during the development process, you often need to write the content into the text, as a log, or for other purposes! 1. fopen (stringfilename, stringmode) description: open a file or

When you don't want your code to be viewed by others, you can use gzinflate + base64 to encrypt and decrypt the code. Currently, many base64 encryption and base64 decryption tools are available on the internet. you can go to Baidu! Base64_encode

Beginners must master basic common functions during learning! Summary: 1. PHP converts strings to uppercase and lowercase! & Amp; nbsp; strtolower (); lowercase & amp; nbsp; & amp; n Beginners must master basic common functions during learning!

& Amp; nbsp; what is the database abstraction layer? You only need to understand the role of the database abstraction layer. the database abstraction layer can be easily transferred when you switch from one database to another without modifying too

No matter whether you are a beginner or veteran of php, the following php Tutorial download content is definitely what you want. the 200 php source code is extracted from various platforms and networks on the Internet, as shown below: open the file,

If you don't want to use session to solve the online number of people statistics, you can use the php file to perform operations. In fact, the implementation is still a little complicated, so I have commented in detail on the following code, leave a

First, attach the php code: & amp; lt ;? Php $ a = 100; printf (& quot; % 0.2f & quot;, $ a); $ B = sprintf (& quot; % 0.3f & quot;, $ ); echo $ B ;? & Amp; gt; very clear First, add the php code: Obviously, the printf function outputs

Php file counting is very simple. first look at the following php code: & amp; lt ;? Phpheader (& quot; Content_type: text/html; charset = utf-8 & quot;); functionge Php file counting is very simple. first look at the following php code:

This is a frequently asked question in php interview questions. I recently started to focus on the differences between flush () and ob_flush () and ob_end_flush () when making pages static: buffer is a memory address space. This is a frequently

The error message is as follows :(!) Fatalerror: Uncaughtexception 'smartyexception' withmessage' Callofunknownmetho The error message is as follows: (! ) Fatal error: Uncaught exception 'smartyexception' with message 'Call of unknown method

In today's project, you need to determine whether two arrays have an intersection. The first one feels that PHP should have this function. indeed: arrayarray_intersect (arrayarray1, arrayarray2 [, arrayN & amp; h In today's project, you need to

If you remove the duplicate value from the array, you may think of array_unique (), but this is only applicable to one array. for the two arrays, you can solve the problem as follows: functionmy_array_unique ($ array2D ){ Removing the repeated

PHPPOST is submitted to two pages, one of which is uniform identity authentication and the other is non-identity authentication. the submission process is as follows: if the non-uniform identity authentication is successful, the logon is successful,

I want to use the APC cache in the end how the effect, but in windows can not find the corresponding version of the php-apc.dll extension file, had to install in linux, do not use the source code installation, direct yum on the line: first install

At the beginning, thinkphp was used, and rewrite mode was used in URL mode. input url: http: // localhost/ThinkPHP/index. php/cate/index & amp; nbsp: At the beginning, thinkphp is used, and rewrite is used in URL mode. enter the url: Http: //

I almost got confused. after reading it for a long time, there were originally two controllers Controller and Controller_Template. the Two loaded views and passed variables were different. The former was: & amp; lt ;? PhpclassControll I almost got