what's wrong with this php code? - php

Question

Ok, the idea here is to have code that will append SF_ to all key names in an array.
I took my array (which is part of an object), flipped it, added the SF_, and flipped it back.
Somewhere in the process I lost some fields...
here's what I started with:
object(stdClass)[12]
public 'Affiliate_Code__c' => string 'XX-TXUJC3' (length=9)
public 'AltEmail__c' => string 'benny#oxpublishing.com' (length=22)
public 'City' => string 'Mobile' (length=6)
public 'Email' => string 'benny#oxpublishing.com' (length=22)
public 'Fax__c' => string '251-300-1234' (length=12)
public 'FirstName' => string 'Benny' (length=5)
public 'LastName' => string 'Butler' (length=6)
public 'Phone' => string '251-300-3530' (length=12)
public 'PostalCode' => string '36606' (length=5)
public 'State' => string 'AL' (length=2)
public 'Street' => string '851 E I-65 Service Rd' (length=21)
public 'test1__c' => float 1
array
'SF_Affiliate_Code__c' => string 'XX-TXUJC3' (length=9)
'SF_Email' => string 'benny#oxpublishing.com' (length=22)
'SF_City' => string 'Mobile' (length=6)
'SF_Fax__c' => string '251-300-1234' (length=12)
'SF_FirstName' => string 'Benny' (length=5)
'SF_LastName' => string 'Butler' (length=6)
'SF_Phone' => string '251-300-3530' (length=12)
'SF_PostalCode' => int 36606
'SF_State' => string 'AL' (length=2)
'SF_Street' => string '851 E I-65 Service Rd' (length=21)
And here's my code:
$response = $mySforceConnection->query(($query));
foreach ($response->records as $SF) {
}
var_dump($SF);
$SF = array_flip($SF);
foreach ($SF as $key => $value){
$SF[$key] = 'SF_'.$value;
}
$SF = array_flip($SF);
echo "<pre>";
var_dump($SF);
echo "</pre>";
extract($SF);
Any idea?
I'm new to OO programming of any sort, and I'm sure this has something to do with it.
I'm so stupid I have to do:
foreach ($response->records as $SF) { }
because I don't know how to get to that array any other way.
Help!
Thanks!

Answer 1

When you do the flip, you end up with duplicate keys - the values become the keys, and your values are not unique (e.g. Email and AltEmail__c both have the same value).
Rather than doing a flip then flipping back, just create a new array and copy the values in with the new keys:
$SF_new = array();
foreach($SF as $key => $value ) {
$SF_new['SF_' . $key] = $value;
}
// And if you want to continue using the $SF name...
$SF = $SF_new;

Answer 2

array_flip will flip the values and keys, as you said. A PHP array cannot have multiple keys with the same name. Try something like this to avoid flipping:
<?php
$SF = array();
foreach($response->records as $key => $value)
{
$SF['SF_' . $key] = $value;
}
About the way you get to the array in the object, this is the proper way to do it.

Answer 3

$SF = get_object_vars($response);
Will transform your object into an array.

Answer 4

flip swaps keys and values. because you have values that share the same value, you lose them in the flip.