PHP skillfully cache image files with 304 code

Private Function _addetag ($file) { $last _modified_time = Filemtime ($file); $etag = Md5_file ($file); Always Send headers Header ("last-modified:". Gmdate ("D, D M Y h:i:s", $last _modified_time). " GMT "); Header

PHP Paging principle Analysis, PHP page code Introduction example

!--? php $conn = @ mysql_ Connect ("localhost", "root", "123456") or Die ("Database link Error"); mysql_select_db ("BBS", $conn); mysql_query ("Set names ' GBK '");//use GBK Chinese encoding; //spaces

PHP Paging Class Usage (excerpt from YII framework)

Php;toolbar:false ">/*public function Actionreport () { $sql = "Select * from {{goods}}"; $criteria =new Cdbcriteria (); $result = Yii::app ()->db->createcommand ($sql)->query (); $pages =new cpagination

Examples of PHP page-class code used in conjunction with Smarty

/** * Pagination Class */ Class Pager { var $total; Total Records var $pageSize; Number of records displayed per page var $currentPage; Current page number var $offset; Record offset var $pageTotal; Total

Examples of PHP static variables and custom constants usage

function Add () { static $i = 0; $i + +; echo $i; } Add (); echo ""; Add (); ?> Copy CodeDefines a function add () and then calls Add () two times. If a local variable

PHP Pagination Class Code example, the paging class that can be used in the PHP framework

PHP Pagination Class Code Class page{ Public $page; Current page Public $pagenum; Pages Public $pagesize; Show number of bars per page Public function __construct ($count, $pagesize) { $this->pagenum = ceil

PHP Paging Class code and paging call screenshot

Class Page { Private $total; Total Records private $pagesize;//How many bars are displayed per page Private $limit; Limit Private $page; Current page number Private $pagenum; Total Page number Private $url; Address

PHP pagination Class code, customizable parameters PHP page code

Class Pagelink { /* Paging display parameter settings */ Private $db _table = ""; Private $db _table_field = "";//fields in the database to be displayed Private $condition = ""; Query criteria Private $sort = ""; Sorting

Ten principles of the programmer's cultivation

Some time ago read an article, probably described the self-cultivation of Gestalt therapy, a great benefit, the decision from their own industry and career on the ten principles of re-elaboration, hope that the work of the vast numbers of

Programmer's Road "on"

These are the names that have been talked about by countless people in the IT industry. Here, the author from a professional programmer's point of view, I would like to talk to you about their feelings. Why to be a programmer mentioning the problem

Thinkphp Paging method and implementation code

/** * TODO basic paging in the same code package, making the foreground code less * @param $m model, reference delivery * @param $where Query conditions * @param int $pagesize number of query bars per page * @return

PHP Paging class and calling method

/** * PHP Page class code * edit:bbs.it-home.org */ Class Page { Private $total; Total Records private $pagesize;//How many bars are displayed per page Private $limit; Limit Private $page; Current page number

PHP Imagick function set Picture background transparent

$image = new Imagick (' 1.png '); $image->borderimage (New Imagickpixel ("White"), 1, 1); $image->paintfloodfillimage (' Transparent ', 2000,null,0,0); $draw = new Imagickdraw (); $draw->color (0,0,imagick::P aint_floodfill);

PHP is looking for HTML tags that contain ID attributes in HTML

In PHP, with regular expressions, to find the HTML has an id attribute of all the HTML tags, this article gives a detailed method of operation, the need for a friend reference. How do I find a tag with an id attribute in my HTML using a

Example of PHP recursive delete directory

function Deletedir ($dir) { if (!handle= @opendir ($dir)) {//detects if the directory to open exists Die ("No such directory"); } while (False!== ($file =readdir ($handle))) { if ($file!== "." && $file!== "..")

PHP randomly displays all pictures under the specified folder

# Init Array $files = Array (); # Get Folder if ($_get[' folder ')} { $folder = $_get[' folder ']; } else { # Set Default Folder $folder = '/img/'; } # Set Full Path $path = $_server[' Document_root '

PHP Custom function for generating random passwords

/* * PHP automatically generate new password custom function (with example demo) Applicable environment: Php5.2.x/mysql 5.0.x Code Author: Xujiajay Contact information: xujiaphp@gmail.com * */ function Genpassword

PHP instance: Detects and clears BOM information at the beginning of a file

Ini_set (' Memory_limit ', '-1 '); /* Detect and clear bom*/ $basedir = DirName (__file__);//scan current file path can be set automatically $auto = 1; Checkdir ($basedir); function Checkdir ($basedir) { if ($dh =

PHP Singleton Singleton Mode Introduction Example

Class CC { Single-Case mode private static $ins; public static function Singleton () { if (!isset (self:: $ins)) { $c = __class__; Self:: $ins = new $c; } Return self:: $ins;

PHP string Intercept Small example PHP function intercept fixed-length string

function Tofixlen ($STR, $len) {//intercept of fixed-length strings if ($len >=strlen ($str) | |! $len) Return$str; $len-=3; $tempstr 1=substr ($str, 0, $len); Intercept string $tempstr 2=preg_replace ('/([\x81-\xff]+] $/ms ',

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