Function that converts integers to numbers in words

[748323]

I know that I can use some weird library to do this, but that's not fun, and I don't actually learn anything. I wrote a small function that is supposed to work up to 99, but it only works with integers 0-19. What's wrong with the script that returns the words for 20-99? It doesn't return false. It just returns nothing. Thanks.

<?

function intnum($integer) {

	if (is_int($integer)) {
		$num_array = array("zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine");

		$irreg = array("ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen");

		$double_digit = array("twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninety");

		if (strlen($integer) == 1){ 
			return $num_array[$integer];
		} elseif ($integer >=10 && $integer <= 19) {
			return $irreg[$integer - 10];
		} elseif (strlen($integer) == 2){
			return $double_digit[$integer{0} - 2] . " " . $num_array[$integer{1}];
		}

	} else {
		return false;
	}
}

echo intnum(54); 

?>

 

[spookie]

return $double_digit[$integer{0} - 2] . " " . $num_array[$integer{1}];

The above line is causing the problem. You are trying to access the array element by non integer index.
$integer{0} gives you the first character of the value you pass to the function .
Using settype() can be usefull here as follows.

<?php

function intnum($integer) {

    if (is_int($integer)) {
        $num_array = array("zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine");

        $irreg = array("ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen");

        $double_digit = array("twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninety");

        if (strlen($integer) == 1){ 
            return $num_array[$integer];
        } elseif ($integer >=10 && $integer <= 19) {
			$print = $integer - 10 ;
			//echo $print ;
            return $irreg[$integer - 10];
        } elseif (strlen($integer) == 2){
            //return $double_digit[$integer{0} - 2] . " " . $num_array[$integer{1}];
			$temp = $integer ;
			$x = substr($temp,0,1) - 2;  
			//echo $x ;
			[b]settype($x,"integer") ;[/b]
			$y=substr($integer,1,1) ;  
			//echo "y:".$y ;
			[b]settype($y,"integer") ;[/b]
			if ( $y == 0) return $double_digit[$x] ;
			else return $double_digit[$x] . " " . $num_array[$y];
        }

    }
	else {
        return false;
    }
}

echo intnum(54); 

?>

Hope that helps.



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I never set a goal because u never know whats going to happen tommorow.

 

[748323]

I'll give that a try. Just wondering. Will substr() help me here, or will I need to use string{} and settype()?

Instead of using your code, can I do something like:

$ch1 = $integer{0};
$ch1 = settype($ch1, "int");

Thanks.

 

[spookie]

You can very well use the above code, but if you try some arithmatic with the first line it will give you an error




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I never set a goal because u never know whats going to happen tommorow.