PHP Tutorials

Ajax, "Asynchronous JavaScript and XML" (Asynchronous JavaScript and XML), refers to a web development technique that creates interactive Web applications. AJAX = Asynchronous JavaScript and XML (a subset of standard generic markup languages). AJAX

Recently encountered in the work of YII2 multi-table related issues, found online this aspect of the information is not much, so think of themselves to organize it, to facilitate their own in the future when needed or friends who need to refer to

This article mainly introduces the PHP implementation of the MySQL master-slave database state detection function, combined with specific examples of PHP detection of multiple MySQL master-slave database connection status related implementation

This article mainly introduces the Redis master-slave database state detection function implemented by PHP, which involves the connection, detection, error message output and mail sending of multiple Redis master-slave databases, and the required

CI Framework, full name CodeIgniter, I believe everyone is not unfamiliar, she is a small PHP framework, CI China official website document is also very comprehensive, now ci4.0 also came out, joined the namespace. But I personally prefer the 2.0

First the data table looks like this, and then the data is queried to get all the data $sql = "SELECT * from Ec_admin_role where ar_state=1 order by ar_level"; $roles = $g _db->getall ($sql); $g _db- >close (); $list =roletree ($roles,

The use of the technology to effectively support a large number of fine-grained objects, the need for friends can refer to. Enjoy meta-mode English is called "Flyweight pattern", I am very grateful to the Flyweight pattern translated into the model

A reference assignment is a copy of a reference to a variable (a new reference or the original value). After the true address is passed, the arguments and arguments are the same object, except that their names are different. Modifications to the row

PHP pseudo-static use is mainly to hide the passed parameter name, Speaking of pseudo-static implementation of the scheme, you are not very quick to answer the "simple, configure the Apache rewrite rules on the line." But have you found this

PHP uses flock to block written and non-blocking writes to the file: Block Write code:(All programs will wait for the last program execution to execute, 30 seconds will time out) Code Academy PHP non-blocking write code:(displays error

AJAX is a technique for exchanging data with a server that can update a part of a Web page without re-loading the entire page. This article focuses on the use of AJAX-related knowledge. Ajax as asynchronous transmission, local refresh is very

Ucenter is used to achieve multi-project synchronization landing, I believe that the people who have learned PHP have heard of this open source project, you may think it can only be used in Discuz, It can be put into any project, Ucenter

Binary search also known as binary lookup, the advantages are less than the number of comparisons, Find Fast, the average performance is good, the disadvantage is that the unknown origin table is ordered table, and insert delete difficult. Therefore,

Htmlreplace is to replace the contents of all HTML files or selected HTML files in a directory with the contents of the specified file, which is especially useful for the same contents of a page, such as a menu bar. This substitution function

PHP is a weak type, which is characterized by the need not to specify a type for the variable, but also to store any type thereafter, but in PHP's new syntax, in some specific cases, for certain types, syntax constraints are also

Now the network information supervision is very strict, especially the blocking keyword. Especially now WEB2.0 era, the content of the website is almost all from the Netizen publishes, the stationmaster manages can. If you want someone to prohibit

The getimagesize () function is used to obtain the image size and related information, successfully returns an array, and fails to return false and produces an e_warning level error message. The following is an example of the getimagesize ()

Directory_separator is a command that displays the system delimiter, Directory_separator is the internal constant of PHP and is not required to be used for any definition or inclusion. As we all know, under the Windows path separator is (of course,

Applet is an application that does not need to be downloaded and installed, it implements the dream of "at your fingertips" and opens the app with the user sweeping or searching. Also embodies the "run-to-go" concept, users do not care whether to

work needs, to use the Lavarel framework, the installation process of a few setbacks, fortunately, remember. Installation environment: Apache2.4.26 PHP7.1.6 Lavarel5.4 1.composer problem The previous computer installed composer, but encountered a