php - Function returns lots of notices -

php - Function returns lots of notices -

first off, skill level @ best, hobbit - new compared if not of you.

i attempting craft function homecoming single <br /> if no parameter/value given, else homecoming many <br /> tags value $num equal to.

i'm trying create function to:

a) larn how create functions

b) hate typing <br />

c) it's thought function came interested me.

so, ideally, in code, if type getbrt(), homecoming 1 single <br /> tag, if type getbrt(1), homecoming 1 single <br /> tag, if type getbrt(5), homecoming 5 <br /> tags.

its not working hoped when type getbrt(). have slug value in? trying not possible within constraints of php?

here function i've built it:

function getbrt2($num){ //if num equals 'nothing', 1 break - easier call/type in code repeatedly if ($num = ''){ echo '<br /'; }else{ //if num equals 'something', breaks equal value $i = 0; // initialize counter while ($i < $num) { echo '<br />'; // increment counter $i++;} } }

to create sure works when no value passed function set default value.

function getbrt2($num = 1) { // default value 1 $num = (int) $num; // cast num integer if ($num < 1) { // if num 0 or negative create 1 $num = 1; } homecoming str_repeat('<br/>', $num); // echo out many <br/> requested } echo getbrt2(1); // prints out "<br/>" echo getbrt2(5); // prints out "<br/><br/><br/><br/><br/>" echo getbrt2(); // prints out "<br/>" echo getbrt2(''); // prints out "<br/>" echo getbrt2('hello'); // prints out "<br/>"

i made few improvements function.

besides default value cast value passed integer since that's need work with. string values not begin number converted 0. then check if $num 0 or negative number. if so, create 1. then utilize str_repeat() create out many <br/> tags desired. then homecoming string can echo'd out.

php string function parameters var