PHP Tutorials

The Yang Hui triangle is an indispensable tool for calculating the coefficients of the two-item-exponent-expansion, and is a triangular number arranged by numbers.Effects such as:Information: Yang Hui the 1th of the nth row of the triangle is 1, the

I believe that we have encountered changes in the Discuz plug-in title, keywords, description problemsSome plugins are called header.htm files by default. Copy Code sometimes with some plug-ins will not show the title, the

This feature is removed by default in DZX2.5Because many friends want to return this featureSo I searched for it. Release this modification method 233707feq7f1xwotds2fsf.jpg (85.05 KB, download count:) Download attachments

example, according to the Yang Hui triangle "each number equals the sum of the left and right two numbers of the previous line". Error message Error_reporting (E_all & ~e_deprecated & ~e_notice);

PHP read MySQL on the problem of garbled summary, there is a need for friends to refer to the next.When PHP reads MySQL, there are several places involved in character sets.1. Specify the character set of the database table when the database table

often encounter some good plug-ins are downloaded from other places of Application Center and can not find or to charge in the network should be public free spirit no door must be used to better free things! should download upload discuz template

Yii's own query Builder is easy to use, eliminating the process of spelling SQL.When writing a statement, you encounter such a problem: $connection = Yii::app ()->db; $command = $connection->createcommand (); $

Often see some history of today or chronological statistics, need to use time query. Query by time, which Ymd, respectively, represents the month and day, of course, can also take out time one of them for flexible use.1, query this month's data:

In PHP programming, the In_array () function searches the array for a given value.In_array () defines and uses the In_array () function to search the array for the given value.The syntax In_array (value,array,type) parameter describes the value

example, the Imagecopyresampled method of the GD library is used to cut the image in PHP. Examples of cropping pictures:The final cropped image:Inside the dashed box is the picture to be cropped and finally saved to 100 wide. Code:

Use of the PHP paging classpage.class.php Class Page { Private $total _rows;//Database total number of records Private $per _page_rows;//Number of bars per page Private $limit; Private $uri; Private $total

#Usage: PHP mysql_rmbykey.php #Usage: PHP mysql_rmbykey.php

In a Linux system, when running some scripts, it is often necessary to run them in crontab. Long time, there is a problem, that is, the program repeatedly run consumes too much resources, how to deal with it?Two methods are written: The first: match

Some data we do not want to be seen by others, want to use other strings or numbers instead, disguised as unrecognized statementsThis is only a cryptographic operation for one or more simple data.Let's take a look at this code, without introducing a

To read the CSV file data function: function GetData ($file) { $arr = Array (); if ($handle = fopen ($file, "R"))!== FALSE) { while (($data = Fgetcsv ($handle))!== FALSE) { $tmp = Array ()

Description: In doing a picture preview of the thing, encountered a problem, is to determine whether the remote file exists (not the same server).example, to determine whether a remote picture exists in many ways.

Here's how to share some of the most common algorithms that are implemented with PHP.1. Bubble sort function Bubble_sort ($arr) { $n =count ($arr); for ($i =0; $i for ($j = $i +1; $j if ($arr [$j]

Discuz community in the update to more than 2.0, added to the plug-in version detection, at the time of installation, may appear: "Sorry, you install is not a genuine application, Setup cannot continue to execute" prompt, to solve this is actually

This project provides a POSIX-based multithreaded programming mechanism for PHP. Any user-defined methods and functions that are defined can be executed asynchronously. Built-in support for synchronization and synchronization methods.Highlight

Learn PHP to call functions through strings.1. Call_user_func function A ($b, $c) { Echo $b; Echo $c; } Call_user_func (' A ', "111", "222"); Call_user_func (' A ', "333", "444");