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Array() Question

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  #1  
Old May 2nd, 2002, 05:16 PM
dv8 dv8 is offline
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Array() Question
How can I echo Array names?
And if I have "nesting doll" array (Meaning an array within an Array) how do echo those inner Arrays names?
I'm full of questions
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  #2  
Old May 2nd, 2002, 05:33 PM
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RE: Array() Question
Do you mean the key values? If so, if you had this:

$myarray = array("First"=>1,"Second"=>2,"Third"=>3);

you could do this:

foreach($myarray as $key=>$value) {
echo "Key name is: $key<BR>n";
echo "Value is: $value<BR>n";
}
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  #3  
Old May 2nd, 2002, 05:58 PM
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RE: Array() Question
try this code. The function here loop through all the elements in an array recursively. so if there is an array in an array in an array etc (you get the idea) this code will echo the names. I wrote it just but I'm sure you can amended if you need to. I have included an example.
Code:
<?php
function echoArray($arrayName)
{
	foreach ($arrayName as $arrayElement) 
	{
   		if (count($arrayElement) > 1)
		{
			echoArray($arrayElement);
		}
		else
		{
		echo "element value: $arrayElement <br>n";
		};
	};
};

$intensity = array('luminous','neon');
$shades = array('light','dark',$intensity);
$colors = array('red','blue','green', $shades);
echoArray($colors);
?>


hope that helps
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  #4  
Old May 2nd, 2002, 06:13 PM
dv8 dv8 is offline
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RE: Array() Question
These Array within Array, can they be stored to a Database?
php Code:
Original - php Code 
  1.  
  3. (
  4.     [0] => Array
  5.         (
  6.             [0] => INITIAL
  7.             [1] => 24/2100Z
  8.             [2] => 30.5N
  9.             [3] => 49.5W
  10.             [4] => 50 KTS
  11.         )
  12.  
  13.     [1] => Array
  14.         (
  15.             [0] => 12HR VT
  16.             [1] => 25/0600Z
  17.             [2] => 31.0N
  18.             [3] => 49.5W
  19.             [4] => 50 KTS
  20.         )
  21.  
  22.     [2] => Array
  23.         (
  24.             [0] => 24HR VT
  25.             [1] => 25/1800Z
  26.             [2] => 32.0N
  27.             [3] => 50.0W
  28.             [4] => 50 KTS
  29.         )
  30.  
  31.     [3] => Array
  32.         (
  33.             [0] => 36HR VT
  34.             [1] => 26/0600Z
  35.             [2] => 33.0N
  36.             [3] => 50.9W
  37.             [4] => 50 KTS
  38.         )
  39.  
  40.     [4] => Array
  41.         (
  42.             [0] => 48HR VT
  43.             [1] => 26/1800Z
  44.             [2] => 33.8N
  45.             [3] => 52.0W
  46.             [4] => 50 KTS
  47.         )
  48.  
  49.     [5] => Array
  50.         (
  51.             [0] => 72HR VT
  52.             [1] => 27/1800Z
  53.             [2] => 34.5N
  54.             [3] => 54.0W
  55.             [4] => 50 KTS
  56.         )
  57.  
  58. )

[0] = >Array as new Row
[0] = >Initial as a new Field
...and so on?
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  #5  
Old May 2nd, 2002, 06:18 PM
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RE: Array() Question
don't think you'll be storing arrays in a database. Better for the table to have the necessary fields for the array elements and populate each one when you add the data to the database
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  #6  
Old May 2nd, 2002, 06:24 PM
dv8 dv8 is offline
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RE: Array() Question
Well the problem with that is if the data is kept for Historical value.
This data for example is storm data. Well, if the storm is named that would be that table.
Limited amount of databases is the reason for flatting the data as so.
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  #7  
Old May 2nd, 2002, 06:34 PM
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RE: Array() Question
you should use a relational database setp. Have a table of storm names and a unique id for each as the key. In another table hold the stats. Then for each storm id hold rainfall, windspeed etc on the same row and so keep all the data in that one table and storm names in another.
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  #8  
Old May 2nd, 2002, 06:43 PM
dv8 dv8 is offline
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RE: Array() Question
Hmm... I think I'm following you...
Can you give an example? So, I see what you mean.
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  #9  
Old May 3rd, 2002, 04:24 AM
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RE: Array() Question
Have a table called storms that looks like:

id | name
1 | Andrew
2 | Mark
3 | Michelle
etc

then a table called storm_data that looks like:
stormid | field1 | field2 | field3 | field4 | field5
1 | 48HR VT | 26/1800Z | 33.8N | 52.0W | 50 KTS

etc
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