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Php beginners and php beginners. Php beginners and php beginners! Does the doctypehtmlhtmlheadtitlePHP function show titleheadbody? Php function definition functionname () {echo

　　

　　　　　　PHP function demo

　　

// Function definition

Function name (){

Echo "this is a no-argument function ";

}

Name (); // no parameter function call

Function name ($ age, $ height ){

Print "this is a function with parameters
";

Echo "height". $ height. ", age:". $ age. "CM ";

}

Name (20,170 );

/*

The following are some of the knowledge points recorded by new students.

There are two main output statements in PHP;

1: print, output a single variable or string;

2: echo: outputs multiple variables or strings, and the execution efficiency is much faster than print.

3: php is a weak language;

4: The Loop, judgment, and branch selection statements in php are similar to those in C # and js;

5: The array naming method is somewhat unique:

$ Arr = array (key => value, key => value ,...);

Example: $ man = array ("age" => 20, "height" => 172, "weight" => 60 );

Indexes do not necessarily start from [0], but are defined as "age", "height", and "weight ";

To obtain elements in an array, you can only use $ man ["age"], $ man ["height"], and $ man ["height;

*/

?>

Success! Doctype html head titlePHP function small display/title/head body? Php // function definition function name () {echo "this is a non-argument function...