PHP dataset construction JSON and new array introduction

The code is as follows:Copy code Function RecordToJson ($ recordset)    {$ Jstr = '[';While ($ rs = $ recordset-> Fetch ())        {// $ Nick = iconv ("GBK", 'utf-8', $ rs ['Nick ']);/* convert to UTF-8 encoding */// TODO: traverses the result

Summary of common PHP dates and times

1, year-month-dayEcho date ('Y-m-J ');2007-02-6Echo date ('Y-n-J ');07-2-6Uppercase Y indicates four digits of the year, while lowercase y indicates two digits of the year;Lowercase m indicates the number of the month (with the leading digit), while

Php code for retrieving content between specified characters

The code is as follows: The code is as follows:Copy code Function get_between ($ input, $ start, $ end ){ $ Substr = substr ($ input, strlen ($ start) + strpos ($ input, $ start ), (Strlen ($ input)-strpos ($ input, $ end) * (-1 )); Return $

Php regular expression to extract Image URLs

I want to extract html images. The code is as follows:Copy code The above address. I want to extract all the addresses that contain 'ico 'and ignore them. For correction, some images are extracted. Some images are not extracted.Example: The

PHP + AJAX implementation code for refreshing pagination (1/2)

The code is as follows:Copy code Var http_request = false;Function send_request (url) {// initialization, specifying the processing function and sending the request functionHttp_request = false;// Start initializing the XMLHttpRequest objectIf

Php array sorting several program instances

[Select sorting: The second number to the nth number are compared with the first number, and the third number to the nth number are compared with the second number, and exchanged until the sorting is complete] The code is as follows:Copy code

Php file download implementation code

  The code is as follows:Copy code $ File = 'monkey.gif ';If (file_exists ($ file )){Header ('content-Description: File Transfer ');Header ('content-Type: application/octet-stream ');Header ('content-Disposition: attachment; filename = '.

PHP Excel

The code is as follows:Copy code Include_once ('phpexcel. Php ');// Read excel file;$ PHPExcel = new PHPExcel ();$ PHPReader = new PHPExcel_Reader_Excel5 ();$ PHPExcel = $ PHPReader-> load ('/home/yuanjianjun/taobao_cat.xls ');$ CurrentSheet = $

How to convert IP addresses to numbers in php

The code is as follows:Copy code Echo ip2long ("192.168.1.189"). " ";Echo (192*255*255*255 + 168*255*255 + 1*256 + 189). " ";?> -1062731331 3194548645

Php anti-Leech code

Let's take a look at the simplestThe following is the code implemented by php. xxx.mp3 is the actual address of your music file. Only the php address is transmitted during external communication. The mp3 address is not publicly available. The code

Php query program for obtaining the IP address location

The code is as follows:Copy code 0) {$ urlip = array_keys ($ _ GET); $ urlip = str_replace ("_",". ", $ urlip [0]) ;}?>$ Ip = $ _ POST ['IP']? $ _ POST ['IP']: $ urlip; if (! $ Ip) $ ip = get_real_ip ();$ Ip = preg_match ('/(w |-) +.) + [a-z] {2,

Summary of various methods for sorting php arrays

ForPhp array sortingMany functions are provided in php. I will list them below, which can be supplemented by incomplete functions.The sort () function is used to sort array units from low to high.The rsort () function is used to sort array units

Php supports searching multi-keyword highlighted program code

Project structure:Start searching: search for keywords here ("big" "this ")Start searching: search for keywords here ("big" "this ")Search results: highlightedDatabase structure required by the project:Database Connection file The code is as

Let's talk about the differences between require (), include (), require_once () and include_once () in php.

There are two methods to reference files: require and include. The two methods provide different elasticity.The use of require is as follows: require ("MyRequireFile. php ");. This function is usually placed at the beginning of the PHP program.

Php regular expression to get all image addresses on the page

The code is as follows:Copy code // Obtain all image addresses on the pageFunction getimages ($ str){$ Match_str = "/(http: //) + ([^ rn () ^ $! '"' | [] {}<>] * )(.Gif) | (.jpg) | (.bmp) | (.png) | (. GIF) | (. JPG) | (. PNG) | (. BMP )))/";Preg_

Php batch content replacement or all files in a specified directory

ord

The strtr () function converts special characters in a string.SyntaxStrtr (string, from, to) orStrtr (string, array)*/ The code is as follows:Copy code $ Addr = strtr ($ addr, "", "aao"); // The first call method.$ Trans = array ("hello" => "hi",

Implementation and explanation of php mail address regular expression

Regular expression The code is as follows:Copy code ^ [_. 0-9a-z-] + @ ([0-9a-z] [0-9a-z-] +.) + [a-z] {2, 3} $ In this regular expression, "+" indicates that one or more strings appear consecutively. "^" indicates that the next string must

Php file_get_contents get Baidu keyword code

The code is as follows:Copy code Function getBaiduHotKeyWord (){$ TemplateRss = file_get_contents ('http: // top.baidu.com/rss_xml.php? P = top10 ');If (preg_match ('/ (. *) /is', $ templateRss, $ _ description )){$ TemplateRss =$ _ description [0

Php perfect paging program

The code is as follows:Copy code /*************************************** **************************************** ****** Perfect paging class, which can be customized (perfect for high-fat teachers), O (& cap ;_& cap;) O haha ~) *****************

FAQs about file operations in PHP development

Preface:PHP supports operations on various types of databases, and also provides rich operation methods for file operations, many of my friends are still operating on files, but sometimes there are still many puzzles and doubts when operating on

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