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I am getting an array in php, and send it to smarty .tpl file.

In smarty I would like to get that array in a java script variable .

How to do this . Please help me ...

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5 Answers 5

up vote 0 down vote

simplest way is to use json:

<script type="text/javascript">
var arr = <?= json_encode($arr) ?>;
</script>

json_encode() takes you php data and converts it into json, amd in our case its exactly what we need

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up vote 0 down vote

I think it should simple like 

<?php
  $_array = array('apple','banana','durian');
  $js_array = '[' . implode(',',$_array) . ']';
?>

<script type="text/javascript">
    var iArray = <?php echo $js_array;?>;
</script>
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up vote 0 down vote

In php file just add like this 

<?
$arr = array(1,2,3,4,5);
$jsarr = implode(',',$arr);
$smarty->assign(arr,$jsarr);
?>

in template file use it like this 

<html>
<head>
<script type="text/javascript">
var array = new Array({$arr});
</script>
</head>
</html>
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up vote 0 down vote

It is better to use [] instead of new Array. You need to put values in quotes and escape them - to be sure not to break js. I realy don't like preprocessing data in php just to assign it to smarty. This solves all potential problems:

<script type="text/javascript">
    var arr=[
    {foreach name=i from=$myarray item=v}
      '{$v|escape:"javascript"}'
      {if !$smarty.foreach.i.last},{/if}
    {/foreach}
    ];
</script>

if your array contains only integers the you can use {$v|intval}

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up vote 0 down vote

Since PHP is parsed prior to any JS, you can simply add the values from the PHP array into a JS function:

So if you have this array in PHP:

$my_array = array("a","b","c","d","e");

Then you can use the following to initialize a JS array with the same values:

<?php
    //PHP snippet to create a comma-delimited string with each value of $my_array
    //surrounded by quotation marks.  Quotes not needed if values in array are numeric.
    $array_vals = '"' .implode('","', $my_array) .'"';
?>
<script type="text/javascript">
    var my_array = [<?php echo $array_vals;?>];
</script>
share|improve this answer
    
Do not use new Array! If you have new Array(12) array of 12 elements will be created. But if you have new Array(12,13) array of 2 elements [12,13] will be created. If you assign array with only one element your code will not work as expected. See Arrays –  DamirR Jan 13 '12 at 11:46
    
@DamirR Of course you're right - edited my answer to correct that - thanks for pointing it out. –  TheOx Jan 13 '12 at 14:19

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