What does echo in php mean?

The echo in php is an output function used to display strings or variables on the screen. In addition to outputting text to the browser, echo can also be used to pass data to other programs or store it in file, its syntax is "echo()".

Operating system for this tutorial: Windows 10 system, php8.1.3 version, Dell G3 computer.

In PHP, echo is an output function used to display strings or variables on the screen.

Use the following method to use the echo function:

echo "Hello World!"; //输出字符串 "Hello World!"

You can also output the value of the variable through echo, as follows Display:

$name = "John";
echo "My name is " . $name; //输出字符串 "My name is John"

You can also include HTML tags in the echo statement. For example:

echo "<h1>Welcome to my website</h1>";

In addition to outputting text to the browser, echo can also be used to pass data to other programs or store it in a file, etc.

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