PHP

How to export data in excel format in php. Solve two problems: 1. The text data such as ID card is automatically converted into scientific notation. 2. Chinese garbled characters: how excel exports data from a web page. When we put this data Solve

In php, the preg_match username is a regular instance. For example, the code for letters, numbers, and Chinese characters is as follows: if (preg_match ([.,:;*?~ '! @ # $ % ^ +) ({}] |] | [|, $ User) {echo should not contain special characters in

Yii is used to operate databases. 1. execute the PDO method of native SQL too. Copy the code as follows: $ SQL; original SQL statement xx: model ()-dbConnection-createCommand ($ SQL)-execute (); II. ActiveRecord method (1. PDO method for executing

Php implements batch conversion of file encoding. There are some problems that cannot be repeated, such as converting gbk to utf8, and then converting it to utf8. this will cause garbled characters. I tried to detect the encoding before conversion,

Php solves the problem of file uploading larger than 8 MB. Develop a file Upload shared site, once wanted to use the following code to achieve the function of file upload: Copy the code is as follows: formenctypemultipartform-dataactionadd_file.php

Use of PHP multithreading. The performance bottleneck of most websites is not on the PHP server, because it can be easily handled by adding servers or CPU cores horizontally (for various cloud hosts, by increasing the number of VPS or CPU cores, the

Php comprehensive exercise-mymessbox-user homepage. (Localhost, root, 111 (mymessbox, (setnamesutf8sub_title (22mb_strlen (, UTF-8 )? :( Mb_substr (, 0, UTF-8 )....?! Doctypehtmlhtmlheadmetachars = ("localhost", "root", "111" ("mymessbox", ("set

PHP image cropping and scaling functions. Crop and scale the source image based on the height and width of the target image. input parameters: $ source_pathstring source image path $ target_widthinteger target image width $ target_heightinteger

PHP public platform development-simple reply function development. [PHP public platform development series] 01. configure interface 02. public platform sample code analysis 03. subscribe processing 04. simple reply function development 1.

Session sharing in PHP zookeeper balanced. Recently, I was busy developing a program for the fourth edition of the lottery coupons. so I haven't been on the trial for a long time. today I will share some ideas with you. first, let's talk about

10 popular open-source PHP Tools. To create dynamic and novel Web applications, PHP is the ideal choice. Needless to say, in the Web development world, PHP is one of the most popular languages. Some very useful PHP open-source tools To create

How does php obtain the file size. Code: convert (B, kb, mb, gb, tb, pb @ (1024, (, 1024), 2 ).. [bywww. jbxue. humanReadableFilesize (1024 (, BKBMBGBTBPB (0; ++ (, 2) Code: Convert (= ('B', 'KB', 'mb', 'GB', 'TB', 'PB' @ (/(1024, (= ((, 1024),

53 points to improve PHP programming efficiency. Use single quotes instead of double quotes to include strings, which is faster. Because PHP will search for variables in strings enclosed by double quotes, but not in single quotes. Note: Only echo

Getting started with CodeIgniter framework-lesson 1 HelloWorld !. $ This-load-view (welcome_message); echoHelloWorld !; Www. youarebug. comforum. php? Modviewthreadtid80extrapage % 3D1 This post $this->load->view('welcome_message'); echo "

Php recursive method to implement unlimited classification instances. Array: The code is as follows $ itemsarray (array (id1, pid0, name Level 11), array (id11, pid0, namewww.111cn.net level 12), array (id2, pid1, array: The code is as

How does php determine whether the data is in json format ). Remember that json_encode returns a string, while json_decode returns an object. judge that the data is not in JSON format: the code is functionis_not_json ($ str) {returnis_null

The correct usage of the require () file that you should know in PHP. When I used to look at some PHP Framework source code, it was strange that dirname (_ FILE _) will be used to piece together the FILE path during FILE inclusion. I don't know what

PHPcurl simulates logon. Submit data, generate a cookie, and save the cookie in the temporary directory to create a file with a unique file name in the specified directory. If the directory does not exist, tempnam () will submit data temporarily in

PHP and memcache installation instructions. After the website traffic has recently increased, the number of database connections has been high. after analysis, all requests are normal, but the website features are fine. there are too many database

Daject. Daject introduction Daject uses github address: github. comkasonyangDaject how Daject assumes that there is a table named user in the database, the field is id, name, age, and the primary key is id. First, we will introduce Daject. Daject is