PHP Tutorials

This article mainly introduces the Thinkphp5+phpexcel implementation of bulk upload form data function, the need for friends can refer to the following 1. First to download phpexcel into the vendor folder, my path is: Project/vendor/phpexcel/, the

This article mainly introduces the js+php implementation of the user input number after the display of the maximum value and is the relevant location of the first, the text gives a detailed sample code for everyone to refer to the study, the need

There are too many differences between the include and require in PHP. But is it true that today we have a concrete example of a simple analysis to verify that Edit the command.php file first echo ' Hello '. Php_eol; Then edit the console.php file

The. env file can customize any other valid environment variables and can be call env () or $_server or $_env To get the variable. So how does env () load into these variables? In Lumen's vendor/laravel/lumen-framework/src/helpers.php, we can see

This article mainly introduces the method of retrieving the length of multi-dimensional array in PHP, the example analyzes the principle of the array and summarizes the method of calculating the length of the array, which is very useful, and the

Using PHP scripts to encrypt strings using the MD5 function under Linux, simply install PHP on a Linux system and then manipulate the example in the command line to #touch a.php //create a.php file #vi a.php //edit a.php file with VI input and

The PHP arsort function is used to sort the elements in the array in descending order, if the sort succeeds returns True, otherwise returns false, this article explains the basic syntax of the Arsort function and the use of examples, the need for

Since PHP 5.4.0, PHP has implemented a code reuse method called trait. Trait is a code reuse mechanism that is prepared for PHP-like single-inheritance languages. Trait to reduce the limitations of single-inheritance languages, developers are free

The dirname (file_) function returns the path where the script is located. For example, the file b.php contains the following content: If b.php is referenced by a a.php file require or include in another directory.The contents of the variable

PHP Object-oriented advanced learning, mainly including the extraction class, interface, final, class constants of some data First, the extraction class (abstract)In our actual development process, some classes do not need to be instantiated, such

This article mainly introduces PHP to get the MD5 value of the file and to determine whether it was modified, message Digest algorithm MD5 (Chinese named message Digest algorithm fifth version) for the computer security field widely used a hash

Simple PHP upload image, delete image implementation code upload Image: if (!empty ($_files["img" ["name"])) {//Extract the file domain content name, and judge $path = "uppic/";//upload path if (!file_exists ( $path)) {//Check if there is a folder,

PHP Encryption Extension Library-mhash Extension Library What is the Mhash extension library: Mhash is a non-reversible PHP encryption extension library based on discrete mathematical principles, which is not turned on by default. Mhash can be used

Php learns to delete string whitespace characters. You can use Trim (), LTrim (), RTrim () functions to remove whitespace from the string masthead or end: $trimmed = Trim (String[,charlist]), $trimmed = LTrim (String[,charlist]); trimmed = RTrim

This lesson is divided into 10 modules, from the configuration file format (php/ini/json/xml) to scene configuration, module configuration, extended configuration, standalone configuration, dynamic configuration, custom configuration loading,

Submitting get form data is the most commonly used action in a form application, and often requires PHP background to get the various data submitted by the user in the foreground form page from the foreground page. form data is passed in the

When you have finished using a session variable, you can delete it, or you can destroy it after you have completed a conversation. If the user wants to quit the WEB system, he will need to provide him with a logout function to destroy all his

Cjuislider displays a slider that can be scaled with the slider bar or used as a different function, encapsulating the JUI slider plug-in. This example scales a pair of images by Cjuislider: widget (' Zii.widgets.jui.CJuiSlider ', Array ( '

What is PHP: PHP, is the abbreviation of English Super Text preprocessing language hypertext preprocessor. PHP is an HTML embedded language, is a server-side implementation of embedded HTML document scripting language, language style has similar to

/** new Creatzip ($_dir,$_zipname); *@ _dir is a compressed folder name, you can use the path, example ' a ' or ' a/test.txt ' or ' test.txt ' *@ _zipname is the compressed package name, can use the path, example ' A/test.zip ' or ' test.zip ' **/