Echo

Fping is a program that sends an Internet Control Message Protocol (ICMP) loopback request to a network host to determine the response of the target host, similar to a ping program, but better performance than Ping. The difference between fping and Ping is that it can specify the number of targets on any command line, or specify a file that contains a list of targets to which ping,fping can replace ping to send a target until the timeout or reply is able to send a ping package and move to the next goal in a round robin way. Ping Ping is ...

Absrtact: Maker Voice is a column for the friends who pay attention to the new hardware, the initial form is an article every day, combing sum up a day down the essence of the new hardware industry, may be an interesting product, may also be a thought-provoking point of view, the goal is to let Maker Voice is a column for friends who are interested in new hardware, the initial form is an article every day, combing the summary of the day down the new hardware industry's essence, may be an interesting product, may also be a thought-provoking point of view, the goal is to let friends in the shortest time here to navigate the truth ...

Several important php.ini options Register Globals php> = 4.2.0, the default value for php.ini's register_globals option is set to Off, and when register_globals is set to On, the program can receive various environment variables from the server , Including the form submitted variables, but also because PHP does not have to initialize the value of the variable, resulting in a big security risk. Example 1: // check_admin () with ...

Array definition and initialization What is an array? An array is a programming structure that is a variable that holds a set of values ​​or a series of values. For example, at the time of the census, personal identity registration, such as name, gender, nationality, birth, etc. can be used as an array. The array created in the php tutorial is defined using the array () structure, such as $ people = array ('name', 'sex', 'nation', 'brith'); and how to display the value of each element in the array Is to use the index from 0, the index number ...

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 ...

php tutorial Web page dynamic effects show the progress of the server to run the program If ('source' == $ _get ['act']) {// View source code show_source ($ _ server ["script_filename"]); exit;} ...

The database holds one or more tables. Create a Database The CREATE DATABASE statement is used to create a database in MySQL. Syntax CREATE DATABASE database_name In order for PHP to execute the above statement, we must use the mysql_query () function. This function is used to send queries or commands to the MySQL connection. Example In the following example, we create a database named "my_db": ...

Oh, the following code is a little messy ah, is what I do in the test, PHP mysql date calculation code [DATEDIFF] is also the day I need to try it. Here's a look at Code function A ($d) {$Date _1=date ("y-m-d"); $Date _2= $d;   $Date _list_a1=explode ("-", $Date _1); $Date _l ...

PHP Tutorial $ _post function and $_get function in detail 1, get is to data from the server, post is to send data to the server, 2, gets the form of data in the form of variable=value, add to the action point of the URL after the And both use "?" Connection, and the "&" connection is used between the variables. Post is to put the data in the form in the form's data body, according to the variable and the value of the corresponding side ...