Question

Having some issues while variable referencing inside “foreach” loop.

This is my CakePHP code snippet:
http://pastebin.com/s7qtYahA

1st code assigns double assigning for the same number of inner “foreach” loop iteration.

But the 2nd code does everything OK.
Can anyone please clarify the twist..? Thanks in advance. 🙂

Answer 1

Because $values has been reset/clear using array()

<?php
foreach($fields as &$field){
        $fieldValues = $this->controller->DomainFormFieldValue->find('all', array('conditions' => array('domain_form_field_id' => $field['DomainFormField']['id'])));
        foreach($fieldValues as $fieldValue){
                $field['DomainFormFieldValue'][] = $fieldValue['DomainFormFieldValue'];
        }
}
unset($field);
?>

2nd code:
<?php
foreach($fields as &$field){
        $fieldValues = $this->controller->DomainFormFieldValue->find('all', array('conditions' => array('domain_form_field_id' => $field['DomainFormField']['id'])));

        $values = array(); /* Array has been resetted */ 

        foreach($fieldValues as $fieldValue){
                $values[] = $fieldValue['DomainFormFieldValue'];
        }
        $field['DomainFormFieldValue'] = $values;
}
unset($field);
?>