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This article is mainly about "how to understand echo in php". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "how to understand echo in php"!

Echo in php is a syntax or function that outputs strings; when echo is followed directly by spaces and strings, echo represents syntax, such as "echo 'php';"; when echo is followed by parentheses, it represents a function, such as "echo (' php');".

This article operating environment: Windows7 system, PHP7.1 version, DELL G3 computer

What is the meaning of echo in php?

ECHO in PHP is a syntax or function that outputs a string, which is followed directly by spaces and strings, such as "echo 'php';". The function uses methods such as "echo (' php');".

The echo () function of PHP is used to output one or more strings. "echo'" can also be used. When you use echo without parentheses, echo is a syntax, not a function. Echo does not return a value, while functions such as print,print_r, which can also be used to print strings, do.

Complete code example:

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