PHP Tutorials

The join () function combines array elements into a single string. The join () function is an alias for the implode () function. Example $arr = Array (' Hello ', ' world! ', ' beautiful ', ' day! ');echo Join ("", $arr);?> output:

PHP anomaly mechanism, can only be regarded as an imported product, PHP books on the abnormal mechanism of the discussion is very few, mostly only in the grammar stage. Some people praised the PHP exception is a good thing, also some people think

This article introduces a custom function, that is, to determine whether a valid e-mail address, in fact, we often say that the regular verification email address, good to have a face to the classmate to see. The code is as follows

Imagecreatetruecolor () After creating a true color image, The first color that is registered with the Imagecolorallocate () method is not automatically used as the background color, but must be filled with imagefill (). Set color $BG =

In PHP for the operation of the file we will probably use file locking to avoid the simultaneous operation of multi-user conflict, the following small series with you to test the file lock exclusive operation some examples of analysis. flock–

This article provides a PHP tutorial to generate a detailed tutorial of verification code, the first is about the build validation core code, followed by a build and Invoke method. Header ("Content-type:image/png");$num = ' 1234

PHP image upload class can also generate thumbnails and watermark This image upload code can upload images to add watermarks, generate small images, but also can generate text watermark. PHP Tutorial Picture Upload class can also generate thumbnails

In PHP, the Curl module is a multi-threaded module, he can easily implement the simulation login, such as Post,get can, below I take an example of using the Curl module to simulate login after the page program. Today received the lesson is from a

0. It is quicker to use single quotes instead of double quotes to contain strings. Because PHP will search for variables in a string surrounded by double quotes, single quotes will not, note: only echo can do this, it is a string can be used as a

The code is as follows /*** PHP Get path or directory implementation* @link http://www.45it.com*/ Magic variable to get the absolute path of the current fileecho "__file__: ========>". __file__;Echo ''; Magic variable, gets

Summary:This article will discuss the concept of polymorphism and its application in object-oriented design, and will also analyze how to use polymorphism and the advantages and disadvantages of PHP 5. Support for late binding has been implemented

SUBSTR () function Introduction The substr () function returns a portion of a string. Syntax: substr (string,start,length). String: Required. A string that specifies the part to return. Start: Required. Specifies where to start the

Copy CodeThe code is as follows: Public Function Downloads ($name) { $name _tmp = Explode ("_", $name); $type = $name _tmp[0]; $file _time = Explode (".", $name _tmp[3]); $file _time = $file _time[0]; $file _date = Date ("Y/md", $file _time); $file _

First, bubble sort Copy CodeThe code is as follows: Bubble sort function Bubble_sort ($array) { $count =count ($array); if ($count return false; } for ($i =0; $i for ($j =0; $j if ($array [$j] > $array [$j +1]) { $temp = $array [$j]; $array [$j]=

Cgi The CGI name is a "public Gateway Interface" (Common Gateway Interface), a tool that the HTTP server "chats" with programs on your or other machines, and its programs must be run on a network server. CGI can be written in any language, as long

Recently, due to the project requirements to do a statistical function, statistics before the current date of the first 30 days of records. function is very simple, the following will be the implementation of the method and everyone to share,

Phpexcel is a PHP class library for manipulating Officeexcel documents, based on Microsoft's OPENXML Standard and PHP language. You can use it to read and write spreadsheets in different formats. And CodeIgniter is a powerful PHP framework. They

Session data exposureSession data often contains some personal information and other sensitive data. For this reason, the exposure of session data is a matter of general concern. In general, the scope of exposure is not very large, because session

thinkphp Connection database and master-slave database setup tutorial, thinkphp master-Slave This paper describes in detail the thinkphp connection database and the master-slave database setup method, which is very practical in the thinkphp project

PHP uses a permission denied notice solution encountered by the session, Permissionnotice If you are using apt-installed PHP under Ubuntu/debian, you may have a small chance of encountering this hint when you use the session. Copy the Code code as