PHP

operations Tutorial quotient assignment operations, arithmetic operators, joint operations, comparison operators and logical operators. The most common PHP assignment operations, arithmetic operators, joint operations, comparison operators, and

$city _str=fopen (Cgi_path.) /data/weather/city.dat "," R ");$city _ch=fread ($city _str,filesize (Cgi_path.) /data/weather/city.dat "));$city _ch_arr=explode ("|"), $city _ch);If you can match the location to the cityif (Strstr ($area _ga, "City"))

Definitions and usageThe NL2BR () function inserts an HTML newline character () before each new row (n) in the string. GrammarNL2BR (String) parameter descriptionString required. Specify the string to check.ExampleEcho nl2br ("One line.nanother

is in fact also snobbish, cut the point to put the money; (refers to the beginning symbol ^ and the end sign $) 2 L. @4 t# N) ~ (BSpecial symbols do not recognize, get a back bar to guide the way (refers to. * and other special symbols) 0 B4 W0} (D2

Chroot-Changing the root directoryDescribeBoolean chroot (string $ directory)The directory of the current process in the changing root directory.This feature is only available if your system supports, and you use the CLI, CGI or embedded SAPI.

Variable Assignment $a = 1;$b = 1;$c = 2;$d = 2;if ($a = = $b && $c = = $d) die (' Error ');//Errorif ($a = = $b) && ($c = = $d)) die (' yes ');?> Do not use the inline (embedded) assignment operator to try to increase the efficiency of the

The seventh chapter (11) Object-oriented detailed object serialization and dragSerialization is the conversion of an object into a binary string (the name of the object to be serialized).Drag is the binary word into Object unserilize (to drag the

/*Paging classDesign by Xqbarqq:174171262Email:wxddong@163.comBlog: http://www.xqbar.comConsider input parametersSize (number of records per page)URL (connection address)Style (pagination style)SQL (Run statement)*/Class page{Public $sql =

Just used PHP to write a website online number of procedures, please come in to guide!I use Php+mysql to write, principle: Website online number of program code + backstage has MySQL database support, you can directly statistics the current number

Php uploads images and generates bitmap code. We often need to upload images, but we also need to retain our copyright so we will use image watermarks, the following program adds your own watermark effect to the image after the image is uploaded

Php does not specify to output only html files. It can generate dynamic gif files. I encountered some problems when using php to dynamically generate gif images. Now I am using php4.05 (for win32) apache3.1.2 _ win32.Problem 1: The program that

Use the php Tutorial mail () to send emailsThe mail () function allows you to send emails directly from scripts.If the mail is successfully received, true is returned; otherwise, false is returned.SyntaxMail (to, subject, message, headers,

The code is as follows:Copy code Class smtp{/* Public variables */Var $ smtp_port;Var $ time_out;Var $ host_name;Var $ log_file;Var $ relay_host;Var $ debug;Var $ auth;Var $ user;Var $ pass;/* Private variables */Var $ sock;/* Constractor

Application instance(Author: Chen Junqing October 18, 2000)The POP3 mail receiving class has already been described in detail in the previous article. Let's take a look at how to apply this class:Include ("pop3.inc. php ");$ Host = "pop.china.com ";$

Traffic Statistics tools, such as cnzz, Baidu Statistics, and 51, are both very good and powerful. I wrote a simple traffic statistics tool, but I can only count the access time, visitor ip address, access route, and access page, from seo/seo.html

The code is as follows:Copy code The project uses temporary write. To be improved/** Obtain the swf playback address of Youku and Tudou based on the (swf/html) address submitted by the user.**/Private function _ getSwf ($ url = ''){If (isset ($

When collecting large volumes of data, the "self-protection" of the other server is often triggered, and access is restricted if the request is too frequent. In this case, the access can be restored after a long period of time (ranging from 10

Extract keywords from webpagesExtract and display keywords from the specified page. The code is as follows:Copy code $ Meta = get_meta_tags ('http: // www.111cn.net /');$ Keywords = $ meta ['keyword'];// Segmentation keyword$ Keywords = explode (

The PHP file_put_contents () function is the most suitable option for writing strings or appending string content to a file at a time.File_put_contents ()The file_put_contents () function is used to write a string to a file. The number of bytes

When PHP processes the page, we use iconv or mb_convert functions for character set Conversion. However, this is actually a prerequisite. That is, we must know in and out encoding in advance before we can perform the correct conversion.The following