Avoid running function more than once

Question

Hi what would be a better way to write the following code so myScript() isn't executed several times?

<?php

function myScript($myVar){
  //some code
  return $anotherVar;
}

$data = myScript("some input");
echo $data.$data.$data;

Answer 1

$data变量仅存储输出，当您回显变量时不会多次执行。

Answer 2

In your script the function execute only once. you use the return value more and more.

The function never run alone, it is you who can call for a function to run.

function myScript($myVar){
  return $anotherVar; //5
}

$data = myScript("some input");
echo $data.$data.$data; //555

You can also call this function multiple time if you want different values for different parameter like:

function myScript($myVar){
  return $myVar * $myVar;
}

$data1 = myScript(3);
$data2 = myScript(4);
$data3 = myScript(5);
echo $data1." - ".$data2." - ".$data3; //9 - 16 - 25