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1. for a common table, we can group a field. for example, for a table worker with three fields: username, age, salary, and male, we can select * fromworkergroupbyage ;, the group will be divided according to age. 2. if we select * floor (rand (0) * 2

// Config. php// ================================================= User configuration area ==== ====================================$ Per = 1; // Number of images processed each time$ Dir1 = 'IMG '; // enter the Directory$ Dir2 = 'img2'; // the

Require_once ("../dbconnect. php ");$ Proimagepath = "photo /";$ Product_id = $ _ POST ["product_id"];$ Product_pid = $ _ POST ["product_pid"];$ Product_title = $ _ POST ["product_title"];$ Product_name = $ _ POST ["product_name"];$ Product_xinghao =

For example, you use PHP to develop the site's Member login page, of course, to implement verification code, verification code can be static, or dynamic, text can be Chinese characters, English, French, Japanese and so on, can be casually replaced.

. we { border-radius:62px; /* All corners use rounded corners with a radius of 5px, this property is CSS3 standard property */ -moz-border-radius:62px; /* Private properties of Mozilla Browser */ -webkit-border-radius:62px; /* WebKit private

Class Image { protected $img; Protected $types = Array ( 1 = ' gif ', 2 = ' jpg ', 3 = ' png ', 6 = ' bmp ' ); Public function __construct ($img = ") { ! $img && $this->param ($img); } Public function param ($img) { $this->img = $img; return

A simple verification code is basically used during logon. First, use the captcha method provided by CI, which is located in the system/helpers/captcha_helper.php controller. A simple verification code is basically used during logon. use the captcha

Code for randomly generating numbers and letters: & lt ;? Php // che. phpsession_start (); for ($ i0; $ I & lt; 4; $ I ++) {$ rand. dechex (rand () ;}$ _ SESSION [& amp; #39; check_num & amp; #39;] $ rand; $ imageimagecreatetruec Code for randomly

PHPclassimagecode{Private $width ; Private $height; Private $counts; Private $distrubcode; Private $fonturl; Private $session; function__construct ($width= 120,$height= 30,$counts= 5,$distrubcode= "1235467890QWERTYUIPKJHGFDASZXCVBNM",$fonturl=

PHP Verification Code Small Project:Header (' Content-type:image/jpeg ');$img =imagecreatetruecolor (120,40);//Build image$element =array (' A ', ' B ', ' C ', ' d ', ' e ', ' f ', ' g ', ' h ', ' I ', ' j ', ' K ');//Captcha random letter, set

For custom verification code classes!/** To-Change the license header, choose License Headers in Project Properties.* To change this template file, choose Tools | Templates* and open the template in the editor.*/Class image{Private $img;Public

Let's take a look at the general effect.So the next step is to put the code directly.PHP$image= Imagecreatetruecolor (100, 30);//Create a canvas $imagecolor= Imagecolorallocate ($image, 255, 255, 255);//Background ColorImagefill ($image, 0, 0,

Form:http://www.uphtm.com/php/255.htmlUeditor Editor upload image is automatically extracted, but the picture does not have a watermark function, the following small series and you see together.Ueditor Editor does not upload images and watermark

Use php to implement website verification code function [recommended by bloggers] and php Verification Code Verification code is a common security measure for websites and a skill that is difficult for new webmasters. Here I will introduce you to a

Written in front of the words: analysis of the entire loophole, have to sigh, found the loopholes are really good and careful ah.In the analysis of the entire vulnerability before the POC, and then directly see faq.php ready to try to find the

For how to add watermark on the picture is a difficult problem that many technical personnel encounter, that everyone has seen the public number and some other technology platform can realize this function, but how to realize the source code, but

Windows System GD Library open Find the php.ini file Extension=php_gd2.dll remove the front; it's okay. Linux System GD Library open # #检测GD库是否安装命令php5-m | Grep-i GDOrPhp-i | Grep-i--color GD# #如未安装GD库, the server is installed by the following

This is a very cool HTML5 canvas animation, it will simulate the reality of our real life fireworks animation effects, the effect is very realistic, but after all, computer simulation, with a girlfriend to see it, the effect is still poor point,

(PHP 4, PHP 5, PHP 7) Imagettftext-writes text to an image with a TrueType font Description Array Imagettftext (Resource $image, float $size, float $angle, int $x, int $y, int $color, string $fontfile, Stri Ng $text) Writes the specified text to

Copy Code code as follows: /* * Function: PHP image watermark (watermark support picture or text) Parameters * $groundImage background picture, that is, the need to add a watermark picture, temporarily support gif,jpg,png format; *