Why can't the second one be executed? ? ?

Question

<?php

$n = 2;

##function dg( $n ){

## echo $n.'<br />';

$n = $n - 1;

## if($n > 0){

//Call dg itself in the function body

dg($n );

}else{

## echo '------------- -';

}

## echo 'I'm a bitch, I haven't executed it yet' . $n . '<br />';

}

?>

Answer 1

<?php

$n = 2;

function dg( $n ){

echo $n.'<br />';

$n = $n - 1;

if($n > 0){

//Called dg itself in the function body

dg($n);

}else{

echo '--------------';

}

echo 'I'm a bitch, I haven't executed it yet' . $n . '<br />';

}

dg($n);

?>

There is no function called, just add dg($n); after it

Answer 2

You didn’t call the function