PHP Tutorials

PHP filters are used to validate and filter data from non-secure sources, such as user input. What is a PHP filter? PHP filters are used to validate and filter data from non-secure sources. Validating and filtering user input or custom data is an important part of any web application. The purpose of designing a PHP filter extension is to make data filtering easier and faster. Why use filters? Almost all web applications rely on external input. These data are usually from users or other applications (such as web services ...

Recently wanted to do a DataGrid function through PHP things, so that you can directly modify the contents of the database table, without the development of [new data page], [edit page], so looking for the Internet to find something similar A, open source, have paid, but basically are based on MySQL. Due to the need to connect to Oracle personally from the secondary development and page style phpMyDataGrid is still quite good. This article first introduced the use of MySQL-based methods, and then briefly introduce the Oracle connection (based on ...

This is a user's own php generated html page code, simple and practical More suitable for beginners, if you are learning php to generate static files, this one instance from the database to the php Template files are very clear step by step Oh. $ con = mysql tutorial _connect ("localhost", "root", "") or die ("link ...

php tutorials read csv data saved to the array code csv is commonly used alternatives to excel format Oh, we often export data will result in csv format, and no difference between excel, the following program is to read csv data saved To the array we want to operate on the data, so save to the data. $ info = csvtoarray :: open ('teste.csv'); // echo '<pre>'; // print_r ($ info); // ech ...

This cost me a lot of time, the use of php, my head is mysql, it has been affected by a paging category, access is not supported limit page, like the same key, the problem solved immediately. Look at the comments should be very easy to understand, access to the paging sql from asp json google code up 001 <? Php 002 / ** 003 // paging class 004 * / 00 ...

Write your own PHP image upload and generate thumbnail function Please refer to the function is divided into three parts First, PHP image upload function Second, PHP generate thumbnail function Third, PHP message prompt function PHP image upload function is as follows: function img_upload ( $ form_name, $ size, $ dir, $ file_name, $ width, $ height) {// file domain name, file size limit, file storage path, thumbnail width, thumbnail height ...

Unix installed under the PHP module, need to recompile PHP, Windows installation template, just the php.ini configuration can be opened in the corresponding dll, for example, need to join the gb library support, you need the following settings: extension_dir = "C : / ipaddr / php / extensions / "(Note that it is recommended to write the full address, followed by the /, often because of the wrong settings here, it can not load other modules dll) and then open ...

php tutorial image upload code (with thumbnails and add watermarking function) This picture upload source code is a can upload pictures and also has to upload images generated thumbnails and watermarking Oh, can be said to be a perfect Image upload category Oh. class upfile {public $ filepath = "www.jzread.com/"; / / upload files stored in the folder public $ filesize = 10 ...

php tutorial url, date, ip, email address detection class code This article provides a really regular expression to detect url address, date format, ip address, and e-mail address is valid verification code. class validation {function check_email ($ value) {// check a email address return (bool) preg_match ('/ ^ [a-z0-9 ._% ...

php tutorial + mysql tutorial database tutorial unlimited classification code This paragraph php infinite classification code more complete, including the database is mysql, add, delete, edit, move the function, while also providing the database sql table structure // connect to the database $ link = mysql_connect ('localhost', 'root', '') or die (mysql_error ()); mysql_select_db ('class', $ link) or d ...

5 kinds of php tutorial to generate swf file code / * The following several php generate flash file code is generated from a simple swf file to generate flash animation files, each instance is a classic. * / / First open the php extension php_ming $ f = new swffont ('_sans'); $ t = new swftextfield (); $ t-> setfont ($ f); $ t-> setcolor (0, ...

php tutorial Web page dynamic effects show the progress of the server to run the program If ('source' == $ _get ['act']) {// View source code show_source ($ _ server ["script_filename"]); exit;} ...

/ php tutorial Chinese characters interception function // string to be intercepted, $ num to intercept the length of return truncated string public function substrgb ($ in, $ num) {// $ num = 16; $ pos = 0; & ...

Php tutorial to convert Chinese Pinyin code The original realization of this program is to convert the Chinese characters into the corresponding machine code, and then define the relative Pinyin, Chinese Pinyin conversion is just a matter of inquiry. $ d = array ("a", - 20319), array ("ai", - 20317), array ("an", - 20304), array ("ang", - 20295), ...

excel tutorial to generate the excel file source code class excel {/ ** * header excel file (prefix line) * * xml specifications copied from excel. * ...

php tutorial Date format Detailed Description php all the functions are unix era, that is from January 1, 1970 onwards. The date is the number of seconds since this time. When a function calls the number of seconds counted from this time, it is treated as a times **** p timestamp. Local time function 1. string date (string format, inieger times **** p) This function returns a string representing the time, controlled by the string format. ...

php tutorial package (online decompression and online package download source) This program supports file download decompression and online compression, so that we find examples of online decompression and online package download. * / //phpzip.class.php class phpzip {var $ datasec, $ ctrl_dir = array (); var $ eof_ctrl_dir = "x50x4bx05x06x00x00x00 ...

This is a php paging program, a digital paging code, much like the search engine baidu page paging effect Oh. $ conn = mysql tutorial _connect ("localhost", "root", ""); $ db = mysql_select_db ("gan"); mysql_query (& qu ...

php tutorial to determine whether the class exists function class_exists / / bool class_exists (string $ class_name [, bool $ autoload = true]) / / This function is defined class is defined check. this function checks whether or not the given class has been defined. // returns true if c ...

get_defined_functions (void) // Returns a multidimensional array containing a list of all defined functions, both built-in (internal) and user-defined. The internal functionality will be adapted via $ [access "internal"] and user-defined using $ ["user"] (see example below). function myrow ($ id, $ data) {& n ...