PHP Tutorials

301 Steering Definition 301 Steering (or 301 redirect, 301 jump) is one of the status codes in the header of the HTTP data stream that the server returns when the user or search engine sends a browse request to the Web server, indicating that the

Of course, the premise is to open the CDN in a function reload_into_ims on. So the user sends over No-cache also not afraid of. Because this will give No-cache to If-modified-since. So we write the program is mainly to If-modified-since control.

File directory Define (' Dl_dir ', ' temp/'); MIME type corresponding to common extensions $MIMETypes = Array ( ' EZ ' = ' application/andrew-inset ', ' hqx ' = ' application/mac-binhex40′, ' CPT ' = ' Application/mac-compactpro ', ' Doc ' = '

Now make a simple review: basically should encounter the problems are met, the key is to find more information, multi-brain can solve the problem. 1/Unable to load mcrypt extension, please check PHP configuration; 2/config file now requires top

However, according to my experiment, if you do not delete a place, the generated document opened with Excel, will be error! Delete all the strings like this: ss:expandedcolumncount= "5" on the line! Example: Fill in the data, then submit, generate

For example, Echo Number_format (285266237); Can output 285,266,237 In addition, if you need to format the size of the file byte, the following methods can be drawn: function Byte_format ($input, $dec =0) { $prefix _arr = Array (' B ', ' K ', ' M ',

As PHP is maturing, it is time for fast, ready-to-use scripting people to agree with the idea of an object-oriented developer who understands UML. Few programming languages can be popularized as quickly as PHP. The story of the widely publicized

Variables: $_server, used in PHP 4.1.0 and later versions. Previous versions, using the $HTTP _server_vars Variables: $_env, used in PHP 4.1.0 and later versions. Previous versions, using the $HTTP _env_vars Variables: $_cookie, used in PHP 4.1.0

Subscript: The identifying name in the array is the code of the string or integer in the array Several index values in an array are referred to as several-dimensional arrays. Index value: An index is a structure that sorts the values of one or more

Responsibilities of the database administrator Startup and shutdown of the server User Account Maintenance Log file Maintenance Backup and copy of the database Optimization of the server Software updates for database management systems Security of

Until you learn! Find information before you learn SQLite's SQL ATTACH DATABASE BEGIN TRANSACTION Comment COMMIT TRANSACTION COPY CREATE INDEX CREATE TABLE CREATE TRIGGER CREATE VIEW DELETE DETACH DATABASE DROP INDEX DROP TABLE DROP TRIGGER DROP

PHP is a server-side scripting language for creating dynamic Web pages. Like ASP and ColdFusion, users can mix PHP and HTML to write Web pages, and when a visitor browses to the page, the server first processes the PHP commands in the page and then

The best tool for managing MySQL database is phpMyAdmin, now the latest version is phpMyAdmin 2.9.0.2, an international open source software that has been updated and you can download it from the Http://www.phpmyadmin.net official website , the

1.upfile.php file File Upload 2.upload.php Gets the current date information and joins it as a string $datetime = getdate (); $time = Implode ("", $datetime); Construct file name $filename = "uploadfiles/". $time. " ". $upfile _name; $

Today to do PHP online manual image of the time to see this method, Haha, have not noticed before, so that the handbook is the best teacher ------------------------------------------------------------------------------------- If you do not want to

The cache refers to the temporary file Exchange area, the computer put the most commonly used files from memory to put in the cache temporarily, just like the tools and materials on the workbench, this will be more convenient than the time to go to

The PHP Custom function only allows you to return a value with a return statement, and when the return is executed, the entire function is terminated. Sometimes when we ask the function to return multiple values, it is not possible to output the

Do not use Ob_start () when turning, add to header file Write a global variable Session_Start ();//cannot submit data after adding: Extract ($_post); extract ($_get); extract ($_session); Session_register (' pt_usr_nm ');//write Browser global

The classic PHP thumbnail generation program, based on the GD library, can specify the path to build and the width and height of the target usage method: In a PHP environment that supports the GD library, save the following code as a resize.php test

Building a simple interactive website (v) 8. Voting system In many cases, we need to collect the views of Internet users and netizens. For example: a comparison between a new page and a previous page, a view of something, a prediction of the outcome