Multi-Dimensional Arrays Help - And Other Questions on Arrays

[fjm]

*bump* Accidentally posted when I wanted to edit. Sorry..

[Dormilich]

My thinking is that it is a 7D array so in order for me to get into the col array, wouldn't I need 7 foreach loops? That is my thinking anyhow. Am I wrong?

you need 3 loops to get there*.

foreach($pages as $page)
{
    foreach ($page['Tables'] as $table)
    {
        foreach ($table['Rows'] as $row)
        {
            foreach ($row['Cells'] as $cell) { // see previous post }
        }
    }
}

* the cells loop, that is

[fjm]

you need 3 loops to get there*.

foreach($pages as $page)
{
    foreach ($page['Tables'] as $table)
    {
        foreach ($table['Rows'] as $row)
        {
            foreach ($row['Cells'] as $cell) { // see previous post }
        }
    }
}

* the cells loop, that is

OK, thanks. That actually helps me to understand better. Let me ask you this Dormilich.. You say it will take me 3 loops to get there but I count 4 loops. Was the 3 a typo?

[Dormilich]

you need three loops to reach the Cells loop (the fourth, which was posted first).

[fjm]

Ok. I think I understand. I know one thing.. that is that I fee much more comfortable being able to get my data out of a 2D array than before. I am going to have to study this a bit because honestly, it has me baffled a bit.

How long would you say it will take me to get this down; to really learn it? I mean, I totally understand the concept but all of the different arrays has my head spinning. I can't make the mental connection. :)

[Ciary]

foreach($pages as $page){
  echo "<h1>".$page['Title']."</h1><br/>";
  foreach($page['tables'] as $table){
    echo "<h3>".$table['Title']."</h3><br/>";
    echo "<table>";
    foreach($table['rows] as $row){
      echo "<tr>";
      foreach($row as $cell){
        echo "<td>".$cell."</td>";
      }
      echo "</tr>";
    }
    echo "</table>";
  }
}

this is the full code to add title etc.

to understand it wont take long. just try keep practising

[Dormilich]

How long would you say it will take me to get this down; to really learn it? I mean, I totally understand the concept but all of the different arrays has my head spinning. I can't make the mental connection. :)

practice, practice, practice and to and fro some sleep ;)

how long this takes you I can't tell, a good abstraction ability will help shortening it… maybe don't rely too much on the table visualization (if it goes beyond 2D)

[fjm]

I think I see something..

$pages = array  [B]<-- value[/B]
(
  array  [B]<-- key[/B]
  (
    "Title" => "First page"
    , "Tables" => array
    (
      'a'=>'b',
      array [B]<-- value[/B]
      (
        "Title" => "First table"
        , "Rows" => array
        (
          'c'=>'d',
          array [B]<-- key[/B]
          (
            'e'=>'f',
            "Cells" => array [B]<-- value[/B]
            (
              "Col1"
              , "Col2"
              , "Col3"
            )
          )
        )
      )
    )
  )
);

Is this right?

[Dormilich]

@Ciary

there's no need to put breaks after the headings, you can set those layout stuff better with CSS.

[Dormilich]

Is this right?

add <-- key to lines 6, 12

[Ciary]

i know, it's a habbit of me to always break after an echo.

[Dormilich]

i know, it's a habbit of me to always break after an echo.

I don't mean the line break in the source code, I mean the <br> element. (and if I got this wrong, you didn't <br> after every echo…)

[fjm]

I truly think I understand this better. Thanks guys! Also Ciary, I used your code and it also worked as did Dormilich's code. What I am going to do now is to study this and make myself some new examples to use. I won't stop until I fully understand them.

Arrays are really cool and I am really beginning to see the benefits of using whenever I can.

[Dormilich]

What I am going to do now is to study this and make myself some new examples to use. I won't stop until I fully understand them.

that's what I call professional attitude. you're always welcome.

Arrays are really cool and I am really beginning to see the benefits of using whenever I can.

wait ’til you see objects… ;)

[Ciary]

your welcome :)
(.............. ...i feel brainwashed.... ..............) ^^

for the <br/> i'm learning not to but its stronger then myself. :)