asked on

PHP to JavaScript Array

Hi Experts,

In PHP I have the following array:

Array
(
    [0] => Array
        (
            [id] => 1625
            [0] => 1625
            [fName] => A.J.:Woodbine Hotel and Suites
            [1] => A.J.:Woodbine Hotel and Suites
            [lName] => 
            [2] => 
            [phone] => 
            [3] => 
            [archived] => 0
            [4] => 0
            [comments] => 
            [5] => 
        )

    [1] => Array
        (
            [id] => 813
            [0] => 813
            [fName] => Aaron
            [1] => Aaron
            [lName] => 
            [2] => 
            [phone] => 
            [3] => 
            [archived] => 0
            [4] => 0
            [comments] => 
            [5] => 
        )
...
...
}

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My question is, how can I copy this into- a JavaScript Array?

Thank you

ASKER CERTIFIED SOLUTION

hielo

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Member_2_248744

greetings APD_Toronto, If you do much in PHP to Javacript variables, then you may can use some code like this, which has a $newArray in PHP and places it in a Javascript variable newArray. .

<!DOCTYPE HTML>
<html lang="en"><head>
<title>PHP array to Javascript Code write</title></head><body bgcolor="#e3f7ff"><h3>PHP array to Javascript Code write</h3>
<?php
error_reporting(E_ALL);
ini_set("display_errors", 1);

$newArray = array(
  array('id' => 1625,
  0 => 1625,
  'fName' => 'A.J.:Woodbine Hotel and Suites',
  1 => 'A.J.:Woodbine Hotel and Suites',
  'lName' => 'last',
  2 => '',
  'phone' => '555-2345',
  3 => '555-2345',
  'archived' => 0,
  4 => 0,
  'comments' => 'comment "1"',
  5 => 'comment "1"'
  ),
  
  array('id' => 813,
  0 => 813,
  'fName' => 'Aaron',
  1 => 'Aaron',
  'lName' => 'Smith',
  2 => 'Smith',
  'phone' => '111-1111',
  3 => '111-1111',
  'archived' => 0,
  4 => 0,
  'comments' => 'comment "2"',
  5 => 'comment "2"'
  )
);
?>
<hr>
the new Array has


<script>/* <![CDATA[ */
var newArray = <?php
$jsOut = '[';
for($i=0; $i < count($newArray); ++$i) {
  $jsOut .= '[';
  for ($ar = 0; $ar < 6; ++$ar) {
    if(is_string($newArray[$i][$ar])) {
    $jsOut .= '"'.str_replace('"', '\\"', $newArray[$i][$ar]).'",';
	} else {
    $jsOut .= $newArray[$i][$ar].',';
	}
    }
  $jsOut = substr($jsOut, 0, -1);
  $jsOut .= '],';
  }
$jsOut = substr($jsOut, 0, -1);
$jsOut .= '];';
echo $jsOut;
?>

document.write(newArray.length+" elements<br />");
document.write("the 0 0 element in sub array is = "+newArray[0][0]+", , the 1 1 element is= "+newArray[1][1]+", , the 0 5 is= "+newArray[0][5]);
/* ]]> */</script>
</body></html>

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This PHP code is set up for your specific PHP array, and outputs in Javascript a Two Level array, But In Javascript you can NOT HAVE string keys for arrays, so my JS eliminates the string keys, and just uses the number keys, but you have duplicate data, which is just a waste of array space.

hielo

>>my JS eliminates the string keys, and just uses the number keys
A better suggestion would be to eliminate the redundant data on the server before using json_encode().

Instead of using :

$row = $result->fetch_array();

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which will give you duplicate data with numeric and string keys (corresponding to the column names of your executed query)

use:

$row = $result->fetch_row();

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if you only want numeric keys.

OR

$row = $result->fetch_assoc();

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if you only want string keys. You can still use the json_encode() function I suggested in my first post.

APD Toronto

ASKER

What do you mean by I have duplicate data?

If you referring for example

  [id] => 1625
            [0] => 1625
            [fName] => A.J.:Woodbine Hotel and Suites
            [1] => A.J.:Woodbine Hotel and Suites

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As in [id] and [0] both equaling 1625 I thought that this was PHP's representation of element zero which can also be accessed by id?

hielo

>> As in [id] and [0] both equaling 1625
Yes, that's what I meant by "duplicate". However, this is not "PHP's representation". In other words, if you declare:

$data = Array("fName"=>"A.J.:Woodbine Hotel and Suites");

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you will not "auto-magically" have another element with index 0 in it set to the same value as "fName". The duplicate values in your array structure is the doing of your DB driver. Very rarely do you need "enumerated" AND "string" keys after querying a DB. If you don't need both, my suggestion is to use either enumerated keys ( use fetch_row() ) OR string keys ( use fetch_assoc() ).

APD Toronto

ASKER

Thhanks