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Php generates a verification code program with interference. This section describes a verification generation program with high security. it can contain interference lines and other content, which can effectively prevent users from using the program

This article mainly introduces a simple method to use PHP to crack anti-Leech images, but the small series is not tested and looks a bit unreliable. if you need a friend, you can refer to it and have your own host to design "anti-leech ", in fact,

PHP transparent watermark generation code. For more information, see Copy codeThe code is as follows: /* * Created on 2010-10-27 * BY QQ542900563 * Copyrights Reserved 2000-2020 * This example shows how to generate an image watermark. */ //

The thumbnail generation function in php is very simple. it only calls several GD system functions, but it is very useful for array getimagesize (string $ filename [, array & $ imageinfo]) to get the image size. Resource imagecreatetruecolor (int $

Cache code sharing for a php website /** * @ Author Seraphim * @ Copyright 2012 * @ Link http://bbs.it-home.org */ // Function sendheader ($ last_modified, $ p_type, $

To solve the problem of GD Chinese garbled text, I carefully studied some related GD technologies today, and also studied the problem of GD Chinese garbled text. Using the GD library to output a Chinese string, it is useless to call imagestring.

Add a text php watermark to your image at any time Header ("Content-type: image/jpeg "); Function makethumb ($ srcFile, $ text, $ size = 12, $ R = 0, $ G = 0, $ B = 0 ){ If (! $ Text ){ $ Text = 'Welcome xs.net.ru xayle '; $ Size = 20; $ R = 255; }

Php uses function_exists to determine the available methods of the function, phpfunction_exists. Php uses function_exists to determine whether a function is available. phpfunction_exists this article describes how php uses function_exists to

Php implements a summary of random display image methods. Php implementation of random display image method summary this article shares a function of php implementation of random display of images, you can randomly display the images stored in the

PHP image processing class library and demonstration sharing. PHP image processing class library and demo sharing a simple PHP image processing class library. although there are few functions, it is not very advanced yet. I will try it later, or

Php converts an image file to a binary output. Php converts an image file to a binary output. This document describes how php converts an image file to a binary output. Share it with you for your reference. The specific implementation method is as

Php verification code generation program code. This article describes how to use session storage and the gd library to generate a verification code program, and add some interference elements to prevent machine registration, next I will introduce to

PHP verification code-Ajax verification implementation method. In website development, most of us use ajax to perform some operations to provide user experience, next, I will introduce a friend who needs to use ajax to implement the verification

Simple example of PHP verification code implementation code. I have talked about a lot of PHP verification code examples. next I will turn to a friend's good PHP verification code program, which is quite simple for your reference. I have talked a

This article describes how to obtain a video preview from a FLV file in PHP. The example analyzes the php flv file acquisition skills and provides some reference value, for more information about how to obtain a video preview from a FLV file in PHP,

Ask for a question about the GP Library in php to encapsulate the GD library into the class, but I don't know what went wrong there. please take a look at it with me. I am very grateful to you, younger brother, thank you for failing to find it for

SyntaxHighlighter. all (); news & nbsp; | & nbsp; Security & nbsp; | & nbsp; Forum & nbsp; | & nbsp; download & nb Mail_header = "MIME-Version: 1.0 Content-Type: multipart/mixed; boundary =" $ this-> boundary0 "This is a multi-part message in

PHP image verification code production (medium ). Code for randomly generating numbers and letters :? Phpche. phpsession_start (); for ($ i0; $ i4; $ I ++) {$ rand. dechex (rand ();} $ _ SESSION [check_num] $ rand; $ imageimagecreatetruecolor (50

[PHP] transparent watermark generation /* * Created on 2010-10-27 * BY QQ542900563 * Copyrights Reserved 2000-2020 * This example shows how to generate an image watermark.

This article is mainly for everyone to bring an example of laravel5.4 generation verification code to explain. Small series feel very good, now share to everyone, also for everyone to make a reference. Follow the small series together to see it,