PHP Tutorials

Max_user_connections is the maximum number of MySQL user connections set, the whole sentence means: The server's MySQL maximum number of connections parameter setting is insufficient. Workaround: Restart the MySQL server by modifying the value of

The following points summarize the characteristics and advantages of choosing PHP as a website development language. 1. Open source PHP is an open source language (free to download, free to use, free to share), and no developer or user is charged

Copy CodeThe code is as follows: /** * Bubble Sort Bubble sort * * Principle: Multiple cycles are compared, the maximum number is moved to the top at each comparison. Each time you loop, find the maximum value in the remaining variable and then

1. Use MyISAM instead of InnoDB A complete error, a reason for refuting: The original text says MyISAM is used by default, and in fact MySQL 5.5.x,innodb has become the default table engine. In addition, the simple use of InnoDB is not a solution

The way to get Http_user_agent is simple, like the PHP code: Copy CodeThe code is as follows: ?> Copy CodeThe code is as follows: ?> Both of these can be user-agents and IP information, preferably with regular expressions, filtering out

Workaround: Using PHP to resolve Use the File_get_contents function, but the pros and cons if the URL is unreachable, a terminating program problem occurs Use curl to return, and then decide whether to execute correctly Use the Get_headers function

Today I wrote a small program, small and small, just to build a link between PHP and MySQL, and implement simple SQL statements. Novice preliminary interview, but also please a lot of experts to guide the road. The program source code is as

Copy CodeThe code is as follows: Judging remote Files function Check_remote_file_exists ($url) { $curl = Curl_init ($url); Do not retrieve data curl_setopt ($curl, Curlopt_nobody, true); Send Request $result = curl_exec ($curl); $found = false; If

Copy CodeThe code is as follows: /* * Captcha Class base on PHP GD Lib * @author Design * @version 1.0 * @demo * Include (' captchaclass.php '); * $captchaDemo =new Captcha (); * $captchaDemo->createimage (); */ Class captcha{ @ Define CAPTCHA

The first method: "Two-point lookup Requirements": 1. Sequential storage structure must be used 2. Must be ordered by keyword size. "Pros and cons" The advantage of binary lookup method is that the number of comparisons is small, the search speed is

There is only one php_pdo_odbc.dll. So~ the newest and best PHP connection MSSQL method should be this: Copy CodeThe code is as follows: $CNX = new PDO ("Odbc:driver={sql Server}; server=127.0.0.1;database=test; ", ' sa ', ' asd123 '); Var_dump

In PHP, there are two ways to access a class's methods/variables: 1. Create the object $object = new Class (), and then use the "-and" call: $object->attribute/function, provided the variable/method is accessible. 2. Call the class method/variable

After a period of debugging analysis, found that there is a function to write a very messy, it is estimated that the revision of the time has not changed, after a period of time to modify debugging, finally the normal generation of the 4-level page,

The highlight of this article is that the regular-style more complex bird, ╮@@facesymbol@@╭, and then the Copy function of the gray often powerful one usage. > said just now listen to Nsyta that the theme of Small evil White, cup with. Recently too

Because COM components can only be used on Windows, programs must be running on Windows servers. Install on the local XP system without any problems, installed on the server Win2003, encountered n problems, and finally Gump classmate shot to solve,

There are three common ways to iterate through an array in PHP: First, iterate through the array using the For statement; Second, use the foreach statement to iterate through the array; Third, the union uses the list (), each () and the while loop

phpthumb several basic parameters Some useful parameters are listed below: SRC: Address of the target image W: the width of the output picture H: The height of the output image (if not specified he will be scaled by the W parameter, etc.) Q: If the

The idea of online registration and uploading works is to use Web Forms to collect user-filled data stored in the MySQL database, and create an FTP upload account with the user's registered name and create a corresponding directory for that

Methods Bindparam () and Bindvalue () are very similar. The only difference is that the former uses a PHP variable binding parameter, and the latter uses a value. So using Bindparam is the second argument that can be used only with the variable name,

(Code snippet test successful, upload successfully!) ） Because of the impulse to learn PHP code yesterday, it came from something like imitating the image Library of a similar company. Therefore, today when the most basic function of the