PHP Tutorials

PHP's HTML code to filter submission forms may have code that is exploited to introduce external dangerous content. For example, there are times when a user submits a form that contains HTML content, but this can cause the Display page layout to be

function Pagesplit ($startPos, $rowsPerPage = ", $totalRows =") { $numPages = $totalRows/$rowsPerPage; $tenthPages = $rowsPerPage * 10; If ($startPos >= $tenthPages) { $back 10Position = $startPos-$tenthPages;

function Pinyin ($_string, $_code= ' gb2312 ') { $_datakey = "A|ai|an|ang|ao|ba|bai|ban|bang|bao|bei|ben|beng|bi|bian|biao|bie|bin|bing|bo|bu|ca|cai|can|cang|cao |ce|ceng|cha ". "|chai|chan|chang|chao|che|chen|cheng|chi|chong|chou|chu|

$image =imagecreatetruecolor (100, 30); $white =imagecolorallocate ($image, 255, 255, 2); $red =imagecolorallocate ($image, 255, 0, 0); Imagefill ($image, 0, 0, $white); Munber Create $num = ""; for ($i =0; $

Bom:byte order Mark UTF-8 BOM is also called UTF-8 signature, in fact, UTF-8 BOM has no effect on UFT-8, is to support UTF-16, UTF-32 added BOM, BOM signature means to tell the editor what encoding the current file, convenient for the editor to

The examples in this article describe how PHP regular expressions get all links to content. Share to everyone for your reference. Specific as follows: Here are two methods for regular PHP links that can be used to get all the links to the content

a class code for converting PHP solar to lunar calendar A class for converting PHP solar to lunar calendar Class Calendar { #农历每月的天数 var $everyCMonth =array ( 0=>array (8,0,0,0,0,0,0,0,0,0,0,0,29,30,7,1),

This is a very useful distance calculation function that calculates the distance from location A to B using latitude and longitude. The function can return miles, kilometers, and oceans of three unit types of distance. function

Class Httptool { /** *//Get domain name or host address * #测试网址: http://localhost:8081/test/testurl.php?id=5 * Return to localhost:8081 */ Public Function GetHost () { Return $_server[' Http_host '];

function Is_valid_url ($url) { $p 1 = '/(HTTP|HTTPS|FTP): \/\/[a-z0-9-]+ (. [ a-z0-9-]+) * (: [0-9]+)? (\/.*)? $/i '; Return Preg_match ($p 1, $url); } function Is_valid_email ($email) { if (Filter_var ($email,

!--? php $patterns = "/\d+/";//First type // $patterns = "/\d/"; The second type of $strs = "left:0px;top:202px;width:90px;height:30px"; Preg_match_all ($patterns, $strs, $arr); Print_r ($arr);

Determine Access IPPHP code function GetIP () { if (! empty ($_server ["http_client_ip"])) { $CIP = $_server ["Http_client_ip"]; } else if (! empty ($_server ["http_x_forwarded_for"])) { $CIP = $_server

10 super-useful PHP code Snippets [PHP] Code 1. Send SMS Call the Textmagic API. Include the Textmagic PHP Lib Require (' textmagic-sms-api-php/textmagicapi.php '); Set the username and password information

function Imagefromurl ($image, $rename) { $ch = Curl_init ($image); curl_setopt ($ch, Curlopt_header, 0); curl_setopt ($ch, Curlopt_returntransfer, 1); curl_setopt ($ch, curlopt_binarytransfer,1); $rawdata

This code snippet allows you to prohibit certain IP addresses from accessing your website if (!file_exists (' Blocked_ips.txt ')) { $deny _ips = Array ( ' 127.0.0.1 ', ' 192.168.1.1 ', ' 83.76.27.9 ', ' 192.1

$pdf _file = './pdf/demo.pdf '; $save _to = './jpg/demo.jpg '; Make sure that Apache have permissions to write on this folder! (Common problem) Execute ImageMagick command ' convert ' and convert PDF to JPG with applied settings

$img =imagecreatetruecolor (100, 40); $red =imagecolorallocate ($img, 255, 0, 0); $green =imagecolorallocate ($img, 0, 255, 0); $blue =imagecolorallocate ($img, 0, 0, 255); $white =imagecolorallocate ($img, 255, 255, 255);

Recently a project using PHP as the front-end to provide data for the development language, in order to achieve the ability to sort alphabetically, the need to extract Chinese Hanyu Pinyin, this project wrote a Chinese pinyin script, script is

echo "";echo Date ("Y-m-d", Strtotime ("Now"), "\ n";echo "";echo Date ("Y-m-d", Strtotime ("1 week Monday")), "\ n";echo "";echo Date ("Y-m-d", Strtotime ("1 week Sunday")), "\ n";echo "";echo Date ("Y-m-d", Strtotime ("+0 Week Monday")), "\

Class Database { Private $hostname; Private $user; Private $pass; Private $dbname; Private $linkflag; Private $charset; function __construct () { $this->hostname= "localhost"; $this->user=