What does echo mean in php

In the above example we output "Hello! The text we are outputting is being sent to the user in the form of a web page, so it is important that we use proper HTML syntax! However, you must be careful when using HTML code or any other string that includes quotes! Echo uses quotes to define the beginning and end of the string, so you must use one of the following tactics if your string contains quotations:.

The backslash will tell PHP that you want the quotation to be used within the string and NOT to be used to end echo's string. Echoing variables is very easy. The PHP developers put in some extra work to make the common task of echoing all variables nearly foolproof! No quotations are required, even if the variable does not hold a string. Below is the correct format for echoing a variable. You can also place variables inside of double-quoted strings e.

By putting a variable inside the quotes " " you are telling PHP that you want it to grab the string value of that variable and use it in the string. The example below shows an example of this cool feature. By placing variables inside a string you can save yourself some time and make your code easier to read, though it does take some getting used to.

Asked 2 years, 7 months ago. Active 2 years, 7 months ago. Viewed 4k times. John Doe John Doe 21 1 1 silver badge 3 3 bronze badges. They all are "plain text": echo just prints back whatever you asked, it does not carry any additional semantics.

You're going to need to think about the different layers at work in your application. A great place to find these kind of things out is from the PHP manual: php. Echo sends output to the output buffer, If it's embedded in HTML which is also being sent to the output buffer then it appears that it writes that to the "source". Which it basically does, but only because the source is also being output.

Add a comment. Active Oldest Votes. I hope this has helped Edit: to answer you directly, there is no compiling going on, echo is simply printing out the string. ScottSmudger ScottSmudger 1 1 silver badge 7 7 bronze badges.

Hope that makes sense. ArtisticPhoenix ArtisticPhoenix Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Tip Passing multiple arguments to echo can avoid complications arising from the precedence of the concatenation operator in PHP.

See Also print - Output a string printf - Output a formatted string flush - Flush system output buffer Ways to specify literal strings. Passing multiple parameters to echo using commas ',' is not exactly identical to using the concatenation operator '. There are two notable differences. First, concatenation operators have much higher precedence. Parentheses needed. We can use the 'echo' shortcut syntax with the conditional operator expr1?