I want to know how can I concatenate [und][0][value]. I don't want to write every time [und][0][value]. So I have do like this:
<?php
$und_value = $load->field_testimonial_location['und'][0]['value'];
$query = db_select('node','n');
$query->fields('n',array('nid'));
$query->condition('n.type','testimonial','=');
$result = $testimonial_query->execute();
while($fetch = $result->fetchObject()){
$load = node_load($fetch->nid);
// $location = $load->field_testimonial_location['und'][0]['value'];
$location = $load->field_testimonial_location.$und_value;
echo $location;
}
But its not working. It outputs Array Array So have any idia for this problem? How can I do? Full code here
Why don't you make some function which will take node field as parameter and return it's value
function field_value($field){
return $field['und'][0]['value'];
}
Something like that (not tested).
But if you don't want to use function try using curly braces like:
$location = $load->{field_testimonial_location.$und_value};
That should work...
Extending answer posted by MilanG, to make function more generic
function field_value($field, $index = 0 ){ return $field['und'][$index]['value']; }
There are time when you have multi value fields, in that case you have to pass index of the value also. For example
$field['und'][3]['value'];
Please do not use such abbreviations, they will not suit all cases and eventually break your code.
Instead, there is already a tool do create custom code with easier syntax: Entity Metadata Wrapper.
Basically, instead of
$node = node_load($nid);
$field_value = $node->field_name['und'][0]['value'];
you can then do something like
$node = node_load($nid);
$node_wrapper = entity_metadata_wrapper('node', $node);
$field_value = $node_wrapper->field_name->value();
With the node wrapper you can also set values of a node, it's way easier and even works in multilingual environments, no need to get the language first ($node->language
) or use constants (LANGUAGE_NONE
).
In my custom module, I often use $node
for the node object and $enode
for the wrapper object. It's equally short and still know which object I am working on.