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How PHP uses the explode () function to split strings into arrays

This article mainly introduces PHP using the explode () function to split the string into an array of methods, with a certain reference value, the need for friends can refer to the This example describes how PHP uses the explode () function to

A validated email function written by a cow.

Function From Haohappy ' S blog an email validation function function Valid_email ($email) {We check that there ' s one @ symbol, and that's the lengths are rightif (!ereg ("^[^@]{1,64}@[^@]{1,255}$", $email)) {Email invalid because wrong number of

PHP User's Guide-cookies section

PHP User's Guide-cookies section In this tutorial we will learn how to use PHP to process cookies, and I will try to make things as simple as possible to explain some of the practical applications of cookies. What is a cookie and how it

PHP: Get the city by IP address

File directory:   iplocation-----qqwry----------QQWry.Dat-----ipCity.class.php     ipCity.class.php file code:     $useripNum $userip 2num $useripNum) {$EndNu m = $Middle; Continue After the previous

The realization of classification sort of PHP text database

In PHP programming, if you use a text database, you may have a headache for sorting problems. The following sunny little describes how to use PHP to combine JavaScript scripts to implement this functionality: The following figure, when the user

PHP function calculates the relative path of two files

Sina has an interview topic: Write a PHP function to calculate the relative path of two files? PHP//Calculate the relative path of c.php relative to e.php should be ... /.. /12/34 $a =/a/b/c/d/e.php; $b =/a/b/12/34/c.php; GetPathInfo ($a, $b);

10 Examples of PHP code that must be collected

One, blacklist filtration function Is_spam ($text, $file, $split = ': ', $regex = False) { $handle = fopen ($file, ' RB '); $contents = Fread ($handle, FileSize ($file)); Fclose ($handle); $lines = Explode ("n", $contents); $arr =

A php whois domain name check function code

In the previous PHP host domain name program used in a WHOIS check code, used to determine whether the queried domain name is registered, the function contains most of the domain name suffix, will be based on the suffix of different connections to

Baidu employees to explode the latest adjustment of Baidu's view

Baidu's recent adjustment is more and more frequent, this time according to the latest adjustment of Baidu employees caused a wave of fluctuations, a lot of webmaster said the future of SEO worries, I first summed up the main content of the material:

PHP access to browser information, guest language, guest operating system, guest IP address and visitor location

PHP gets the browser information. Get the guest language. Gets the guest operating system. Gets the guest IP address. Get a visitor's geographic location. PHP access to browser information, access to the guest language: Simplified Chinese, Chinese,

Use header definition as file and then ReadFile download

  Sometimes in order to hide the real download address, we defined the header as a file and then readfile the download, but this will increase the burden on the server, generally do not recommend download a large number of files The code is as

Using Sockets in PHP

Class Net_ping{var $icmp _socket;var $request;var $request _len;var $reply;var $errstr;var $time;var $timer _start_time;function net_ping (){$this->icmp_socket = socket_create (Af_inet, Sock_raw, 1);Socket_set_block ($this->icmp_socket);}function Ip_

BBS (PHP & MySQL) full version (ii)

This page is look.php ? Include "Signup/mysql.inc"; $sql = "SELECT * from". $table. "Where id= ' $id '"; $result =mysql_query ($sql) or Die (Mysql_error ()); $row =mysql_fetch_array ($result); $number =++ $row ["number"]; $sql = "Update $table set

Linux PHP turn doc to PDF transfer swf to realize Baidu Library preview function

Last year, the development of an OA system, need to implement a key document upload and realize online preview, similar to the function of Baidu Library. System Environment: CentOs5.5Tools used: Openoffice 3, pdf2swf tool, Jodconverter, Flexpaper On

Common PHP Image Processing class

This article mainly summarizes two commonly used PHP image processing class (watermark, scaling, fixed width), very simple and practical, the need for small partners can refer to the Common PHP Image Processing class (watermark, equal ratio scaling,

Brief summary of communication methods between PHP program and server side

Program | The server assumes that there are 10 sites, distributed around them, that their inventory is synchronized, and that the database does not support remote connections. we have to get the number of servers in real time, there are many ways

Heapsort (PHP)

A program for practice heap sorting ?Heap Sorting applicationClass Heapsort{var $a;function SetArray ($a)//Get array{$this->a= $a;}function Runvalue ($b, $c)//$a represents an array, $b represents the sort heap, and the $c represents the end

The return data format class instance of PHP implementation

The DataReturn.class.php class files are as follows: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26-27--28 29---30 31--32 33 34 35 36 37 38-39 40 41 42 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

PHP Picture upload Class Code

PHP image upload Class code, function is also more complete, we need to choose according to needs. Let's start with a simple: ?Http://www.jzxue.comClass upload{Public $length; Qualify File Sizepublic $file; Determine if this class is for picture

PHP Learning: Getting Started with string manipulation

In which language, string manipulation is an important foundation, often simple and important. Just as people speak, there is a body (graphical interface), there is a language (print string?). Clearly, the string can explain more things. PHP

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