php script for selecting/inserting, only succeeds for one row - php

Question

I made a fairly simple script to take records from a development database, and for each selected record insert it into production and get the newly created ID.
This "Works" but only for one record. WHen I run this script, it successfully connects, selects, inserts, and prints the newly inserted record's ID but then the script just stops and when I check the database only one new record is there, even though there are over 500 records in the source table
Is it just becuase I'm using While instead of foreach? I think I've done something similar before with a while loop but this isjust dying on me after one successful attempt.
if($DB2connDEV && $DB2connPROD){
$getDevelopment = "
SELECT * FROM TEST_TABLE; // there are over 500 records in here
";
$stmt = odbc_exec($DB2connDEV, $getDevelopment);
while($gettingDevelopment = odbc_fetch_array($stmt)){
$originalID = $gettingDevelopment['identity'];
$insertTable = "INSERT INTO testing_insert_php (name) VALUES ($originalID)";
$getIdentity = "SELECT IDENTITY_VAL_LOCAL() AS LASTID FROM SYSIBM.SYSDUMMY1";
$stmt = odbc_exec($DB2connPROD, $insertTable);
$stmt = odbc_exec($DB2connPROD, $getIdentity);
$row = odbc_fetch_array($stmt);
$ret = $row['LASTID'];
if($ret) {
echo "Last Insert ID is : " . $ret . "\n";
} else {
echo "No Last insert ID.\n";
}
}
odbc_close($DB2connPROD);
}