PHP Tutorials

PHP as the preferred technology for developing dynamic page Web, we must keep in mind the basics of it to help with programming. Let's take a look at how the PHP recursive algorithm is going. 1, the meaning of calling subroutine: When the main

OverviewCode auditing is the work of systematically checking application source code. It is designed to find and fix some of the vulnerabilities or procedural logic errors that exist in the development phase of an application, and to avoid

Copy CodeThe code is as follows: Original image $DST = "/upload/20120914/20120914040740-0.jpg"; Note that the picture path should be correct Get the original picture information $DST _info = getimagesize ($DST); Switch ($DST _info[2]) { Case 1: $DST

Use Crontab to execute PHP code at regular intervals, with an example of every 10 minutes: /10 * * * * wget-q--sqider http://****** first, use PHP to execute script in crontabJust like calling a normal shell script in crontab (specific crontab

Copy CodeThe code is as follows: / * Simple implementation of recording data using a text file */$counter = 1; if (file_exists ("Mycounter.txt")) { $FP =fopen ("Mycounter.txt", "R"); $counter =fgets ($FP, 9); $counter + +; Fclose ($FP); } $FP

How do I convert four fields with a point-separated IP address protocol to an integer? PHP has such a function ip2long. Copy CodeThe code is as follows: Echo Ip2long ("10.2.1.3"); ?> we will get167903491 This is how to calculate, currently I

There is a difference between the knowledge and the actual programming in the textbook of grammatical structure, and the real knowledge is obtained in the actual development. Each PHP developer should be familiar with the following five things

IE8 must be added to the submenu to hide mysql_select_db ($database _lr, $LR); $query = mysql_query ("SELECT * from Bigclass order by sort"); while ($row =mysql_fetch_array ($query)) { $bigclassid = $row [' Bigclassid '];

Previously wrote a plus decryption of the article, also can make use of, now for security, with PHP wrote a Triple DES (3DES) positive and negative decryption function. 3DES is recognized as the safest cryptographic decryption function, but

PHP learning is still going on, but in some large PHP exchange forum encountered some friends on the most basic database concept is not clear, then produced the idea of writing this article! (i) Concept A database is a collection of information in

Ob_start (); Setcookie ("username", "Song Yan Bin", Time () +3600); echo "The username is:". $HTTP _cookie_vars["username"]. " \ n "; echo "The username is:". $_cookie["username"]. " \ n "; Print_r ($_cookie); ?> Warning:cannot Modify header

Ci default rewrite URL is similar to this, for example, your CI root directory is under/codeigniter/, your below level two URL is similar to this http://localhost/CodeIgniter/index.php/welcome. Not too good-looking, how to take out the index.php? 1.

In many projects, you need to use the Instant upload feature, for example, to upload and display images immediately after selecting a local image. This article is a case study of how to use jquery and PHP to implement the Ajax instant upload files,

PHP substr_replace () function syntax Substr_replace (String,replacement,start,length) Parameters Description String Necessary. Specifies the string to check. Replacement Necessary. Specifies the

PHP Import into Excel garbled because UTF8 encoding in the XP system does not support all UTF8 encoding transcoding a perfect solution Utf-8 Coding CasePHP code Copy CodeThe code is as follows: Header ("Content-type:application/vnd.ms-excel;

The CodeIgniter framework of the compression decoding class, where the Read_dir method allows you to compress a server somewhere in the presence of a folder (and the files and subfolders inside it). Provide a folder path, the Zip class will read it

How to get the length of an array in SmartyPremise hypothesis:An array of arrays is assigned to smarty, assuming that the smarty delimiter is ' {' and '} '. As you can see from a lot of data, when you ask for the length of an array in smarty, you

Beginners for the design pattern must have a lot of do not understand, today is just the weekend, took out a little time to write a single-piece mode combined with command chain mode to create the core of the article, may be for some people, the

A back-office job management instance that obtains the job queue from the database, creates a new process for execution, and waits for the job to end. Code snippet: Copy to ClipboardWhat to refer to: [www.bkjia.com] Class Controller_jobs extends

Fire Station Academy documentationAt Smashing Magazine's website, Glen Stansberry presents 10 advanced PHP tips that can instantly lift your PHP programming prowess, including the "cheat sheet" for SQL injection attacks, simplify the else part of