Echo Object Php

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Learn 10 basic knowledge of PHP Summary Read some of the basics of PHP, I summarize here: 1, embedded in the HTML PHP script there are three ways: The following is quoted content: <script language = "php"> / / embedded Way an echo ("test"); </ script> <? // embedded two echo "<br & g ...

It would be faster to enclose the string in single quotes instead of double quotes. Because PHP searches for variables in double-quoted strings, single quotes do not. Note that only echo can do this: it's a "function" that takes multiple strings as arguments, Echo is a language structure, not a real function, so the function with double quotes). 1, if you can define the class method as static, as far as the definition of static, it will speed up nearly 4 times. 2, $ row ['id'] speed ...

Reading and writing Extensible Markup Language (XML) with PHP can seem a bit scary. In fact, XML and all its related technologies can be scary, but reading and writing XML in PHP is not necessarily a scary task. First, you need to learn a bit about XML: what it is and what it does with it. Then, you need to learn how to read and write XML in PHP, but there are many ways to do this. What is XML? XML is a data storage format. It does not define what data is saved, nor does it define the format of the data. XML ...

When the client site is ASP + ACCESS platform how to transplant to the PHP platform? First of all, we want to solve the PHP Access database connection problem, without changing the database, PHP how to establish a connection with the Access database? PHP provides a variety of connection database solutions, explain in detail how to use PHP ADOdb, PDO, ODBC and Access database connection instance code. Preparation First, the use of PHP ADOdb Access database 1, first of all you need to ...

Operation database is the basis of dynamic Web programming, this article gives you a detailed description of how PHP operates MySQL database 1. Establish and close connection 1 mysql_connect () resource mysql_connect ([string hostname [:p ort][:/path/to/socket][,string username] [, String Passwor ...

In the php tutorial to connect mysql tutorial Database tutorial There are two if there are mysql_connect and mysql_pconnect, one is a soft connection, one is continuous connection, the difference between the two is that when the page browsing automatically closes the mysql connection page has been opened mysql_pconnect If you do not close Always connected. * / $ hostname = "localhost"; & nbsp; ...

It is quicker to use single quotes instead of double quotes to contain strings. Because PHP searches for variables in a string enclosed in double quotes, single quotes are not, note: only echo can do this, it is a "function" that can take multiple strings as arguments: ECHO is the language structure, not the real function, so the function is added double quotes. 1, if you can define the method of the class as static, as far as possible to define static, it will increase the speed of nearly 4 times times. 2, $row [' ID '] speed is $ro ...

mysql tutorial _result (): The advantage is easy to use; The disadvantage is that the function is less, a call can only get a row of elements of the result data set, a relatively low efficiency for larger database tutorials; mysql_result () function returns a field in the result set value. If successful, the function returns the field value. If it fails, it returns false. Syntax mysql_result (data, row, field) Parameter Description data Required. Specifies the result identifier to use. This identifier is ...

PHP because of its power and scalability, in recent years have been considerable development, PHP compared to the traditional ASP site, there is an absolute advantage in speed, want to mssql transfer 60,000 data PHP If it takes 40 seconds, ASP no more than 2 However, due to the increasing number of data sites, we are eager to call data faster, not necessary every time from the database, we can from other places, such as a file, or a memory address, which is PHP caching technology, which is Cache technology. In-depth analysis In general, the purpose of the cache is to count ...