What does php mean? Why is PHP the best language in the world?

What does php mean? Maybe many people don't know it very well, but many people may have heard of a sentence: "php is the best language in the world". So, in today’s article, php Chinese website will tell you in detail about php. Why is php the best language in the world?

1: Definition of PHP

According to Baidu Encyclopedia, we can know that PHP is a general open source scripting language. The syntax absorbs the characteristics of C language, Java and Perl, which is easy to learn and widely used. It is mainly suitable for the field of Web development. So why is PHP the best language in the world?

First of all, let’s take a look at the functional features of PHP:

(1) PHP runs on the server side: after learning PHP, you can command the server to work for you. Most of the data on the WEB website is stored on the server side, and PHP is used to process the data stored on the server (it is powerful, right).

(2) The cross-platform nature of PHP: The server can be a server on multiple platforms, such as Linux, Windows, and Unix, and you can command it.

(3) PHP is a scripting language: PHP instructs the server to work by writing scripts, which are lines of computer instructions. Therefore, the process of writing PHP is actually the process of communicating with the server. The language of communication is PHP.

(4) The free nature of php: php is free to use.

2: Why is PHP the best language in the world?

I have summarized the reasons why PHP is the best language in the world as follows:

(1) The learning threshold of PHP is relatively low, PHP is designed for the Web The designed language (although it is now moving closer to a general programming language), it only needs to create a .php file to become a web page, and use $_GET['x'] to obtain the GET parameters. (Related recommendations: php learning roadmap)

(2) The syntax of PHP is relatively simple. PHP is a weak language type. Basically, there is no need to consider type conversion PHP. PHP can also access data from the database very simply; (Related video recommendation: php.cn Dugu Jiujian (4)-php video tutorial)

For example, read data:

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB"; 
// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
} 
$sql = "SELECT id, firstname, lastname FROM MyGuests";
$result = $conn->query($sql); 
if ($result->num_rows > 0)
 {
// 输出数据
while($row = $result->fetch_assoc())
 {
    echo "id: ".$row["id"]." - Name:".$row["firstname"]." ".$row["lastname"]. "<br>";
}
} else {
   echo "0 结果";
}
$conn->close();
?>

Insert data:

<?php
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";
// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);
	// 检测连接
	if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}
$sql = "INSERT INTO 
	MyGuests (firstname, lastname, email)
	VALUES (&#39;John&#39;, &#39;Doe&#39;, &#39;john@example.com&#39;)";
if ($conn->query($sql) === TRUE) {
    echo "新记录插入成功";
} else {
    echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>

The above implementation is very simple for obtaining data from the database and inserting data, but now half of the websites basically read and write data from the database.

3. Summary

Finally, if you don’t want to have a lot of trouble deploying a website, then php is a good language choice, so php It is the best language in the world. To be precise, PHP is the best language for web development, and it is also the most vital language. In short, it is easy to find a job after learning PHP. After all, many websites now are Written in php.

Recommended courses:

PHP zero-based introductory tutorial

Han Shunping's 2016 PHP mysql basic video tutorial

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