PHP

PHP converts lowercase letters to uppercase letters [PHP] code /** * Lowercase to uppercase * * @ Param string $ number value * @ Param string $ int_unit currency unit. the default value is "RMB". some

A simple php database connection and text cache comprehensive class [PHP] code Class Db { Protected $ _ connect; Protected $ _ db = Array (); Protected $ _ cache = Array (); Public function _ construct ($

PHP generates a letter prefix [PHP] code Function ff_letter_first ($ s0 ){ $ Firstchar_ord = ord (strtoupper ($ s0 {0 })); If ($ firstchar_ord> = 65 and $ firstchar_ord = 48 and $ firstchar_ord $ S = iconv ("UTF-8"

PHP sends POST requests in three ways [PHP] code Class Request { Public static function post ($ url, $ post_data = '', $ timeout = 5) {// curl $ Ch = curl_init (); Curl_setopt ($ ch, CURLOPT_URL, $

PHP code that encapsulates the getpost method [PHP] code Function g ($ name, $ defaultValue = ""){ // Php is case sensitive and both are lowercase. $ _ GET = array_change_key_case ($ _ GET, CASE_LOWER ); $ Name =

10 tips to optimize the Laravel5 framework of the PHP program Performance has always been a criticism of the Laravel framework, so tuning Laravel programs is a required skill.Next, I will share some development best practices www.itxdl.cn,

Php implements file download! Secure PHP file download! Public function downloads ($ name ){ $ Name_tmp = explode ("_", $ name ); $ Type = $ name_tmp [0]; $ File_time = explode (".", $ name_tmp [3]); $

Implement md5 check file in PHP [PHP] code // Blog. qita. in Echo 'md5 check [Directory direct md5 directory name, the entire file content will be md5_file]'; $ Filename = "test.txt "; If (is_dir ($

Php mysql operations class [PHP] code Class mysql { Private $ db_host; // database host Private $ db_user; // database username Private $ db_pwd; // database username and password Private $

Phpdes encryption and decryption instance Des encryption is an encryption method that involves many Internet applications in symmetric encryption. php uses the mcrypt extension library to support des encryption and uses des encryption in

Phpsmtp sends an email Php needs to send mail via smtp through a class smtp The code for sending an email is as follows: Require_once 'smtp. php '; ######################################## ## $ Smtpserver =

Phpcurl obtains data through proxy $ Curl = curl_init (); Curl_setopt ($ curl, CURLOPT_URL, "http://www.baidu.com /"); Curl_setopt ($ curl, CURLOPT_USERAGENT, 'mozilla/5.0 (X11; Ubuntu; Linux i686; rv: 20.0) Gecko/201001

Remove BOM header in PHP BOM: Byte Order Mark UTF-8 BOM is also called the UTF-8 signature, in fact, the UTF-8 BOM has no effect on the UFT-8, is to support the UTF-16, UTF-32 added BOM, BOM signature indicates the encoding of the current

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

PHP Singleton mode implementation /** * * User: jifei * Date: 2013-07-31 * Time: 23: 19 */ /** * Class Singleton * The Singleton mode, also called the Singleton mode, is a common

Php5 object replication, clone, Shap replication, and deep replication Origin of object replicationWhy does an object have the concept of "copying", which is closely related to the object value passing method in PHP5. let's take a look at

Php image Upload method Public function lbt (){ $ Ajax = input: get ('Ajax ',''); If ($ ajax = '1 '){ If (! Empty ($ _ FILES )){ $ FileDir = public_path (). '/test /'; $ NewFile = $ fileDir. $ _ FILES

Use the PHPExcel Library Introduce the PHPExcel library before use /** * Excel writing, based on the PHPExcel Library * @ Param array $ data * @ Param $ file * @ Return bool * @ Throws PHPExcel_Exception

Php calls webservices in two ways: soap and curl Take http://www.webxml.com.cn/zh_cn/index.aspx 1. use soap to call // The server supports soap extension: /* Example 1: $ Client = new SoapClient

PHP code used to determine whether a device is a mobile phone tablet Page matching for mobile devices is often required during web development. of course, you can directly make the website responsive, but if you don't want to do this, you