PHP tips-function Overloading

1. You can use the func_get_args () and func_num_args () functions to overload the functions !! PHP code: Copy codeThe Code is as follows:Function rewrite (){$ Args = func_get_args ();If (func_num_args () = 1 ){Func1 ($ args [0]);} Else if (func_num_

Php implements file download instance sharing

Here is a case: Copy codeThe Code is as follows:Class Downfile {Function downserver ($ file_name ){$ File_path = "./img/". $ file_name;// Transcode and convert the file name to gb2312 to solve Chinese garbled characters$ File_name = iconv ("UTF-8", "

Implement ISAPI_Rewrite pseudo-static under the php win host

Some win host iss does not support. the htaccess file, which is not locally used by the apmserv server. for the htaccess file, use the apmserv server environment to configure pseudo-static data, you can refer to the php pseudo-static (url rewrite

50 Methods to Improve PHP program running efficiency

0. replace double quotation marks with single quotes to include strings. This will be faster. Because PHP will search for variables in strings enclosed by double quotes, but not in single quotes. Note: Only echo can do this, it is a "function" that

Upload images using js php xmlrequest

I wanted to use a plug-in to upload images. Later I wrote a simple js file to Implement Asynchronous Image Upload. Not to mention that the code is very simple. Upload. php If (isset ($ _ FILES ["myfile"]){$ Ret = array ();$ UploadDir = 'images'.

PHP4 User Manual: Process control-while

A whilewhile loop is a simple type in a PHP loop. Its behavior is just like in c. The following is a basic while statement: while (expr) statement, the meaning of the while statement is very simple. It tells PHP to repeat statement (s) as long as

PHP4 User Manual: function-count

Count (PHP3, PHP44.0.0) count -- calculate the number of elements in the variable description intcount (mixedvar) returns the number of var elements of a variable, the most representative is the array (other types only have one element ). If the var

PHP4 User Manual: function-fopen

Fopen (PHP3, PHP44.0.0) fopen -- open the file or URL description intfopen (stringfilename, stringmode [, intuse_include_path]) if filename starts with http: // (case insensitive ), this function uses HTTP1.0 to connect to the specified

PHP4 User Manual: function-fseek

Fseek (PHP3, PHP44.0.0) fseek -- locates the pointer description intfseek (intfp, effecffset [, intwhence]) of a file and sets a file indicator for the reference fp of this file. The new position is specified by the offset based on bytes from the

The use of OutputBuffer (output buffer) functions

In PHP programming, we often encounter some functions that directly generate output, such as passthru (), readfile (), and var_dump. however, sometimes we want to import the output of these functions to a file, or process the output of these

How to compare dates and display records within 5 days

A few days ago issued a post, is about Display within five days of this date comparison, http://www.oso.com.cn/forum/read.php? Theme_id7459 focuses on SELECTsomethingFROMtableWHERETO_DAYS (NOW ()-TO_DAYS (date_col) & lt; 5 ;. I posted a post a few

Install GD in Linux

Installing cdgd-2.0.27./configure -- prefix/usr/local/gd2makemakeinstall install PHP Install GD --------------------------------------------------------------------Tar-zxvf gd-2.0.27.tar.gzCd gd-2.0.27./Configure -- prefix =/usr/local/gd2MakeMake

PHP4.04 installation in win2000

... The purpose of writing this article is to return the two articles that webmasters of the guide wrote for you about installing PHP4.04 in win9x and linux. I also hope to help beginners a little bit. This document describes how to install PHP4.04

PHP-based chat room (3)

PHP-based chat room (III) Source: limodou author: MikeHall translator: limodou now we have files that need to be cross-referenced through the $ REMOTE_ADDR variable, in this way, we can determine whether the user who wants to publish the post has

Section 5-clone-ClassesandObjectsinPHP5 [5]

Section 5-clone the object model in PHP5 to call the object through reference, but sometimes you may want to create a copy of the object and expect that the change of the original object will not affect the copy. for this purpose, PHP defines a

Section 13th -- object serialization -- ClassesandObjectsinPHP5 [13]

Section 13th-serializable object serialization: you can include objects and convert them into continuous bytes data. you can save serialized variables in a file or transmit them over the network. then, the data is deserialized and restored to the

Use PHP to create zip compression programs

$ ZnewPHPZip (); // Create a zip class. Method 1: export z->zip(,out1.zip); // add all files under the current directory and subdirectory. Method 2: Export $ Z = new PHPZip (); // Create a zip class Method 1: $ Z-> Zip ("", "out1.zip"); // add

Section 14th -- namespace -- ClassesandObjectsinPHP5 [14]

Section 14th -- namespace naming variables, functions and classes are quite difficult. in addition to taking into account the variable name for easy understanding, we also need to worry about whether the name has been used elsewhere. in a short

PHP, JScript, and VBScript functions and class syntax

1) function example php: functioninc ($ val) {return $ val + 1;} is also a function, but no return value. Jscript, javascript: functioninc (val) {returnval + 1;} process definition is the same as above. VBScript: functioninc (val) incval + 1en 1)

Example of a regular expression: search for another string in a string

& Lt; html & gt; & lt; head & gt; & lt; title & gt; regular expression & lt;/title & gt; & lt;/head & gt; & lt; body & gt; & lt; ahref. /& gt; return list & lt;/a & gt; & lt; br & gt; & lt; formaction & lt ;? Echo $ PHP_SELF ;? & Gt; me

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