Pass A Variable From PHP To JavaScript

I am using a JSON string to pass a variable in JavaScript from PHP : while( $row = mysql_fetch_array($result) ) { $tmp = array('id'=>$row['id'], 'alert_t

Solution 1:

In your PHP, you probably want to use json_encode for encoding all of your data:

$result = array(
  'data' => json_encode($settings)
);

echo json_encode($result);

Second, in your javascript, eval is rarely (never) a good idea. From Douglas Crockford's style guide:

The eval function is the most misused feature of JavaScript. Avoid it.

Instead, you probably want to use JSON.parse() to rebuild the result returned by the server:

console.log(result) ;                
var resultObj = JSON.parse(result);
console.log(resultObj);

If your code is still broken, you might want to double-check your PHP to make sure it isn't spewing out any output beyond the json_encode statement.

Solution 2:

Something is outputting a "1" in front of your json string. Javascript is unable to resolve that properly during eval().

Solution 3:

Well that line of code isn't valid.

Write in the console:

'(1{"data":[{"id":"1","alert_type_id":"1","deviation":null,"threshold_low":"20","threshold_high":"80"}]})'

As this is what you're passing to the eval function. I should give you the same error.

If you want to save that string in a variable you need to adjust it a bit:

eval('var x =' + result);

Anyway It looks like you're doing something wrong, check again why do you need ti use the "evil" eval.