PHP thumbnails generate several method codes

1. From which we can see that the function of the imagecreatetruecolor is obviously to create a black background picture, its first parameter is the width of the created picture, the second parameter is the height of the created picture, we put the

PHP to generate HTML file application and principle notes

1.PHP partial file Operation function. (fopen, Fread, FileSize, fwrite, fclose) 2.unlink (), mkdir () deletes the function. ------------------------------------------------------------- 1.PHP Partial file Operation function(1) fopen open the file

A method of defining variable names with PHP variables

1. Define constant define ("CONSTANT", "Hello world."); Constants can only contain scalar data (boolean,integer,float and string).When calling a constant, simply use the name to get the value of the constant, not the "$" symbol, such as: Echo

PHP Chinese character validation code class function

002 Class Captcha 003 { 004 Private $_about = Array ( 005 ' imageline ' =>8,//Line interference, normal for 0 006 ' Imagepixel ' =>300,//pixel interference, normal for 0 007 ' Location ' =>true,//font random position, false normal 008 '

Complete micro-letter Red Envelope API implementation (PHP version)

A, micro-letter Red Envelopes Document description At present, the micro-credit red envelopes are divided into cash red envelopes and two kinds of fission.1. Cash Red envelopes: Https://pay.weixin.qq.com/wiki/doc/api/cash_coupon.php?chapter=13_52.

PHP Encryption Program

PHP Encryption Program Encryptionfunction Jiami ($data, $PSW) {For ($i =0, $j =0; $i $middle = Ord (substr ($data, $i, 1)) +Ord (substr ($PSW, $j, 1));if ($j > strlen ($PSW)) {$j = 0;}$str. =CHR ($middle);}return ($STR);}Decryptfunction Jiemi

PHP and SQL injection attacks

SQL injection attacks are the most common means by which hackers attack Web sites. If your site does not use strict user input test, it is often easy to be SQL injection attacks. SQL injection attacks are usually implemented by submitting bad data

Example of a PHP replacement that filters all whitespace characters and spaces

In PHP, the TRIM function can only replace the left and right sides of the space, feeling in some cases not very good, if you want to be a string of all white space characters filter out (spaces, full-width spaces, newline, etc.), then we can write

PHP Capture Crawl page function detailed

1. File () function The file () function reads the entire document into an array. Similar to file_get_contents (), the difference is that file () returns files as an array. Each cell in the array is the corresponding line in the file, including

PHP CType Function Usage explanation

The CType function is a string-body-testing function built into PHP. Mainly has the following several Ctype_alnum--Check for alphanumeric character (s)Detect if it contains only [a-za-z0-9] Ctype_alpha--Check for alphabetic character (s)Detect if

PHP file Pictures bulk upload program code

DescriptionUPLOADX PHP Bulk Upload components Follow the Open source Protocol (GPL), any individual, organization can be free to use this program, two development and other powers.It will also be stated that I am not responsible for the business

Extract compressed file instance source code in PHP

Do this before, no contact with the PHP compression this piece, online search some, most are PHP compression class, compression function, less than hundreds of lines, more than thousands of lines of code. This is very confusing to my novice, and I

PHP server integer, floating-point, data IO capability test function

  code is as follows copy code function Test_int (){$timeStart = Gettimeofday ();for ($i = 0; $i {$t = 1+1;}$timeEnd = Gettimeofday ();$time = ($timeEnd ["USEC"]-$timeStart ["USEC"])/1000000+ $timeEnd [sec]]-$timeStart [sec];$time

PHP static analysis and cross-station script detection (III.)

The following is my view of some of the procedures in the Pixy record, mainly in order to be able to quickly understand the process of thinking, record down, otherwise so many things light on the brain how to line. There may be flaws in some places,

Abstract class and interface syntax for PHP 5

In PHP 5, abstract methods are marked with abstract keywords, and classes containing abstractions are abstract classes and must be marked with abstract. ? PHP Abstract   class AbstractClass { Abstract   Public   function test

Php dom reading xml document code (1/4)

  jack herrington php Tutorial hacks o 'Reilly jack herrington podcasting hacks o 'Reilly Xml in 1 contains a list of books. The parent tag contains a set of tags. Each tag contains , , and tags.After the xml document's tag structure and

Misunderstanding of strpos function in php

Modify theme comments-ajax.php filesIn the comments-ajax.php file under the topic directory, around 60 rows (fields such as $ _ POST ['author'] in the user submitted comment form were just obtained ). Then add the following code to the file:

Php filter advertisement content (part-time job, QQ number, Taobao part-time job, Website)

There are several types of user comments or advertisements for other content:1: Taobao part-time and QQ 123456789 group (with QQ number, WeChat number, or other digital numbers)2: taobao part-time job, plus QQ number (with English keywords)3: Taobao

Resolve the 502 (Bad Gateway) error in nginx + php-fpm

fpm

After buying an ECS, the system automatically installs nginx 1.6 + php 5.3.28 + mysql 5.5After the PHP program is put into the ECS, the first test program access is normal and the speed is normal. However, after you put the program online for access,

Convert a php image to an ascii output image

Function image2ascii ($ image){ // Return value$ Ret = '';// Open the image$ Img = ImageCreateFromJpeg ($ image );// Get width and height$ Width = imagesx ($ img );$ Height = imagesy ($ img );// Loop for heightFor ($ h = 0; $ h     { // Loop for

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