Looping through a variable which contains [] - php

Question

I am trying to create a PHP function that will echo info from a db. My col names look like banana[1], banana[2], apple[1], apple[2], apple[3], and so on.
The function will select the fruit
function fruits($fruit){
}
and then within that function I'll loop through the fruits.
How do I echo these?
echo $fruit[$i];
obviously doesn't work.
Pretty basic, but I can't figure out. Concatenation kills me.
function ponctuation($section,$sect){
switch($section){
case 'apple':
$i=1;
break;
case 'banana':
$i=13;
break;
}
global $mysql_tablename;
global $FName;
global $Lname;
if(isset($mysql_tablename)){
$result = mysql_query("SELECT * FROM $mysql_tablename WHERE FName='$FName' AND Lname='$Lname'");
$row = mysql_fetch_array($result);
echo '<form method="post" action="ponctuation.php?'.${$section.$sect}.'_valider">';
echo '<ul>';
$query = mysql_query("SELECT * FROM `ponct_enonces` WHERE `section`='$section' AND `sect`='$sect'");
while($row_q = mysql_fetch_assoc($query)) {
if($row_q['enon']==0 && $row_q['senon']==0){
echo '<h2>'.$row_q['enonce'].'</h2>';
}
if($row_q['enon']==1){
echo '<h3>'.$row_q['enonce'].'</h3>';
echo '<textarea rows="3" cols="100" name="'.$i.'" wrap="physical">' . $row[$section[$i]] . '</textarea>';
}
if($row_q['senon']==1){
echo '<h4>'.$row_q['enonce'].'</h4>';
echo '<textarea rows="3" cols="100" name="'.$i.'" wrap="physical">' . $row[$section]. '</textarea>';
}
$i++;
}
echo '</ol>';
echo '<input type="submit" name="submit" value="Valider"/>';
echo '</form>';
}
}
The code is a little ugly, and some vars have French names, other have English names.

Answer 1

col names won't be expanded into PHP array structures for you, e.g.
SELECT fruit[1], fruit[2], ...., fruit[100]
will give you the equivalent of
$row = array(
'fruit[1]' => someval,
'fruit[2]' => someval,
...
);
if you want to iterate those, you'll have to get ugly:
$fruit = array();
for ($i = 0; $i <= 100; $i++) {
$fruit[$i] = $row['fruit[' . $i . ']'];
}
which begs the question of... why? This is a horrible data structure to be using. Properly normalizing it into a 'fruit attributes' sub-table would save you this trouble, and also allow you to have n attributes, rather than the fixed 1..100 range or whatever it is you have.

Answer 2

If you're attempting to loop over all the columns in a row, you can use fetch_array:
$result = $mysqli->query($query);
$row = $result->fetch_array();
// loop over columns
for ($i = 0, $count = count($row); $i < $count; $i++)
echo $row[$i];
That way, you won't have to worry about the column names. I might be misunderstanding your question, though.