PHP Tutorials

This article gives you a summary of the next PHP conversion to a Boolean (bool) type of situation, very simple, the need for small partners can refer to the following The question is: Will the IF (true==2) in PHP return True or false? The result

January 9, 2017, the small procedure as promised. Programmers are talking about the buzz, but how many have actually used the applet? Below today we introduce to you how should the applet be used? First of all, your must be the latest version, the

Foreword recently, because of project needs, need to read a TXT document containing Chinese, and then save the file. The document was previously encoded by Base64, resulting in garbled reading of all Chinese characters. After the project team

Rights statement This translation can be unrestricted and free to spread without profit. In addition to a few "preview" exceptions, the extension functions you have handled so far are simple and only returned. However, most functions do not have a

INI settings and the Super global variables you see in the previous chapter, as well as persistent constants, the php.ini value must be defined in the extended Minit code block. However, unlike other features, the INI option is defined only by a

How to get the size of the disk partition through the PHP file system function not only can the file system function to the directory, the file operation, but also can obtain the directory, the file related information, then can obtain the disk

The reverse of the PHP array in an article, "How to sort php arrays," we introduced the sort, asort, and Ksort, which are sorted in ascending order of the array, so if you want to implement the reverse of the arrays? Here's another set of functions

The 5 functions that get the intersection have 5 corresponding functions to get the difference set. I am the link. Array_intersect ($arr 1, $arr 2);//Gets the intersection of the array array_intersect_key ($arr 1, $arr 2);//Gets the intersection of

/** * PHP to determine whether the device is a mobile phone or tablet method * @staticvar bool $is _mobile * @return bool */function wp_is_mobile () {static $is _mobile = nul L if (Isset ($is _mobile)) {return $is _mobile;} if (Empty ($_ 1. PHP to

The following example demonstrates how to use the Union () method to determine whether an array is equal:/* Author by w3cschool.cc file name: Main.java */import java.util.arrays;import Java.util.hashset;import Java.util.set;public class Main {public

This article mainly introduces the zero-width assertion of regular expressions, briefly introduces the concept of 0-wide assertion, classification and PHP implementation techniques and related considerations, the need for friends can refer to the

This article mainly introduces the regular expression processing image address, img tag method, very good, with reference value, the need for friends can refer to the next Uploading emoticons or image addresses can be a lot of times when you can't

Related API: folder: Gets the current working directory, that is, the directory path of the current Python script work: OS.GETCWD () returns all files and directory names under the specified directory: Os.listdir () function to delete a file:

The examples in the book are relatively easy to understand, but because it is written by foreigners, the habit of example is not very Chinese characteristics, may occasionally look awkward, there are language habits are not Chinese wind. 　　Of course,

Take a look at the following code: there are two arrays of arrtitle and arrhref before processing, where arrtitle content is as follows: The Arrhref content is as follows://The first element in the title array is taken out as the column title

The current () function in PHP is to return the element (cell) in the array, each with an internal pointer to its "current" cell, an initial point to the first cell inserted into the array, and if we do this once, the inner pointer points to the

In PHP7, a new feature that returns a type declaration has been introduced. Returns the type of a function return value specified by the type declaration. The following article mainly introduces the PHP 7 new characteristics of the type declaration

The reverse of the PHP array in an article, "How to sort php arrays," we introduced the sort, asort, and Ksort, which are sorted in ascending order of the array, so if you want to implement the reverse of the arrays? Here's another set of functions

PHP array common function Array_map (callable CALLBACK,ARRAYARR1 [, array $ ...]) returns an array that contains all the cells in the ARR1 after the callback action. The number of arguments callback accepts should be the same as the number of arrays

This article mainly introduces the PHP JSON correlation function usage, enumerates the functions of Json_encode, Json_decode and Json_last_error, and analyzes the specific use techniques of json_encode and Json_decode functions, A friend you need