PHP Tutorials

Put this above any PHP image generation code: Session_Start (); Header ("Cache-control:private, max-age=10800, pre-check=10800"); Header ("Pragma:private"); Header ("Expires:".) Date (Date_rfc822,strtotime ("2 Day"));

$array =array ("1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20");// Specifies the array to be paged $page = $_get[' page ']; $r = $this->page ($array, 5, $page); Print_r ($R)

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

/** * Get image address in CSS and save to local */ Class Getincssimage { /** * Picture saved * @param URL address of $cssUrl CSS * @param $dir directory to save pictures * @return void */

Class Mycache { Private $cache; function __construct () { $this->cache = new Memcache (); You can replace the localhost by memcached server IP addr and port No. $this->cache->connect (' localhost ', 10987); }//

!--? php $array = Array ("Beijing" =>1925, "Shanghai" =>2016, "Guangzhou" =>1256, "Shenzhen" =>980 ); $arr _key = Array_keys ($array); $color = Array (); $im = Imagecreatetruecolor (300,300);

/** @ Statistics page views Text cache @site http://bbs.it-home.org * */ Private function Visit ($id) { if (Isset ($GLOBALS [' Cfg_safe '] [' visit-article ']) && $GLOBALS [' Cfg_safe '] [' visit-article ']) {

Basic steps in drawing technology prerequisites: Enable the GD library in the php.ini file Create Canvas The default background is black $img =imagecreatetruecolor (400,300); Draw various shapes Create a color $background =

/** * Method Library-intercept string * @param string $string strings * @param int$length character length * @param string $dot whether to add after interception ... * @param string $charset encoding * @return String

PHP character security filter functions, PHP to prevent SQL injection attacks and XSS attacks commonly used functions, including mysql_real_escape_string (), Addslashes (), Htmlentities (), Functions such as Htmlspecialchars (), Strip_tags ().

PHP Paging Code $array =array ("1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20");// Specifies the array to be paged $page = $_get[' page ']; $r = $this->page ($array, 5,

Set_time_limit (13600); Set the time $conn =mysql_connect (' localhost ', ' root ', '); Connecting to a database mysql_select_db (' csdn ', $conn); mysql_query ("SET NAMES UTF8"); $file =file (' csdn.txt '); foreach

Var_dump (In_array (0, Array (' s ')); Copy CodeResult: BOOL (TRUE).Because In_array will compare 0 and ' s ', 0 is the number type, ' s ' is a string type, and according to the instructions in the chapter "Comparison Operators" in PHP

Echo GET_MAGIC_QUOTES_GPC (); I'm sorry, this is 0. Echo $_post[' LastName ']; Simao ' Pig echo addslashes ($_post[' LastName '); Simao\ ' Pig if (!GET_MAGIC_QUOTES_GPC ()) { $lastname = addslashes ($_post[' LastName ');

/* More & Original PHP framwork Copyright (c) 2007-2008 Ismole Inc. Author:kimi Documentation: Download the picture in the style file, water special Mr Skinner tool */ Note Set PHP timeout time Set_time_limit (0);

For PHP to save binary raw data as a picture file method, receive post over the binary raw data, select a generated path and the name of the picture, then write, need to refer to the friend. Example,PHP saves binary raw data for picture

Establishing a database connection $link = mysql_connect ("localhost", "Mysql_user", "Mysql_password") Or Die ("Could Not connect:". Mysql_error ()); Get the current number of pages if (Isset ($_get[' page ')) { $page =

about thinkphp usage in memcache, including memcache installation, how to run it in thinkphp, thinkphp In Memcache as an example of caching, a friend is required to refer to the below. !--ad-->!--ad--end--> thinkphp memcache Cache usage 1,

Header (' Content-type:text/html;charset=utf-8 '); Image processing 1 set MIME type output type text/html default is page type can not write Header (' content-type:image/png; '); $width = 400; $height = 400;

1.the skills an IT engineer should haveI think the practical skills include 3 aspects, 1:Figure 1All of these are important:Coding: You must be able to write high-quality code within a limited time.Experience: Experience shows that you are