Help with a small program.

[JoshuaDempsey]

I have been tasked to create a small program in any language I know, which is PHP.

 

It will be a console app (I can't install a LAMP stack etc) and it has to:

 

Allow one of six minibeasts to be selected from a menu

Enter and store the name and grid co-ordinates of the selected minibeast

Display how often each minibeast was found

Display the minibeasts found in each grid co-ordinate

 

So far in PHP I have got a welcome screen, then some of the menu from which they can input what minibeast they want to select information for (sort of). I have the actual menu worked out, it's a simple "echo" after all, but I need to work out how to execute different code based on their input.

 

This is my main file:

 

require_once 'functions.php';
require_once 'config.php';

welcome(); // Adds the welcome message to the program

menu(); // Adds the selection menu to the console app

getUserInput();

 

This is functions.php with all my functions:

 

<?php

// This holds all of the functions for the
// program

// Welcome function (just text really)

function welcome(){
echo "
Welcome to the console application.

";

echo "
To begin using the program, type a number
from the list below and then press \"ENTER\" to
execute it.

";

echo "
For help, type \"help\" and execute it,
for credits type \"credits\" and execute and for
prog. info type \"info\". Version $vernumber

";
} 

// Next is the selection menu

function menu(){

echo "
Please execute a number from below:

1. Slug 
2. Centipede 
3. Ladybird
4. Snail 
5. Woodlouse
6. Worm 
7. Exit
";
}

// Add the input catcher

function getUserInput(){
fwrite(STDOUT, "Enter your choice\n"); 
$selected = fgets(STDIN);                
if ($selected = "1"){
echo "hi";
}
elseif($selected = "2"){

}
}

?>

 

This is where the problems start. I take their input as $selected, but the if statement is for some reason not working. Then I need to work out how to execute the function again if they enter nothing.

 

Could this be accomplished in a while.. loop?

 

Thanks a lot

[mweldan]

if they enter nothing, it will capture this:

\n

 

so you will likely have to check for it too.

 

echo (!empty($te) && $te != "\n") ? $te : "nothing";

[JoshuaDempsey]

if they enter nothing, it will capture this:

\n

 

so you will likely have to check for it too.

 

echo (!empty($te) && $te != "\n") ? $te : "nothing";

 

Excellent help! Thank you. I replaced "nothing" with the function for them to enter the number again, but I noticed it only runs twice before exiting the program. Is there anyway I could use a loop to continue running the function again if certain conditions aren't met e.g. number less than 1 and more than 7 and no input. Thanks

 

EDIT: now there is a bug whereby anything I input it asks me for more input ):

Edited February 20, 2013 by JoshuaDempsey

[AyKay47]

Use the comparison operator == instead of the assignment operator.

if( $selected = 1 ) will always equate to boolean TRUE.

[AyKay47]

A while(true) { } loop with the appropriate break; logic should work fine.