interbase / mysql php script

Hi,

I originally posted a question in relation to selecting data from an interbase database and then inserting it in to a mysql database.

https://www.experts-exchange.com/questions/28284651/insert-data-from-Firebird-to-mysql.html

So far I am able to insert a single selected value by using the following script -

<?php
include_once 'database_connect.php';
      $dbh = ibase_connect($host, $username, $password);
    $stmt = 'SELECT FIRST 10 CLCTABRE ,CLCTNOM  FROM CLIENT';
    $sth = ibase_query($dbh, $stmt);
    while ($row = ibase_fetch_object($sth)) {
   $newvalues[] = $row->CLCTABRE;
}
    ibase_free_result($sth);
    ibase_close($dbh);
	
$dbh = new PDO('mysql:host=localhost;dbname=swdata', 'root', 'root');

$stmt = $dbh->prepare("INSERT INTO USERDB (keysearch) VALUES (:yourValue)");
$stmt->bindParam('yourValue', $value);

try {
	foreach ($newvalues as $value):
		$stmt->execute();
	endforeach;
} catch (PDOException $e) {
	if ($e->errorInfo[1] != 1062) {
		//silently skip duplicate entries
		echo $e->getMessage();
	}
}
?>

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However I want to be able to insert more fields in to my insert script, but am getting an error message.
Warning: Illegal string offset 'value1'
Warning: Illegal string offset 'value2'
Warning: Illegal string offset 'value3'

Can someone please give me a hand resolving this?

<?php
include_once 'database_connect.php';
      $dbh = ibase_connect($host, $username, $password);
    $stmt = 'SELECT FIRST 10 CLCTABRE ,CLCTGROUPE ,CLCTVILLIV FROM CLIENT';
    $sth = ibase_query($dbh, $stmt);
    while ($row = ibase_fetch_object($sth)) {
   $newvalues[] = $row->CLCTABRE;
   $newvalues[] = $row->CLCTGROUPE;
   $newvalues[] = $row->CLCTVILLIV;
}
    ibase_free_result($sth);
    ibase_close($dbh);
	
$dbh = new PDO('mysql:host=localhost;dbname=swdata', 'root', 'root');

$stmt = $dbh->prepare("INSERT INTO USERDB (keysearch ,firstname ,surname) VALUES (:value1, :value2, :value3)");
$stmt->bindParam('value1', $x_variable);
$stmt->bindParam('value2', $y_variable);
$stmt->bindParam('value3', $z_variable);
try {
	foreach ($newvalues as $data):
	$x_variable = $data['value1'];
	$y_variable = $data['value2'];
	$z_variable = $data['value3'];
	$stmt->execute();
endforeach;
} catch (PDOException $e) {
	if ($e->errorInfo[1] != 1062) {
		//silently skip duplicate entries
		echo $e->getMessage();
	}
}
?>

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