- str_split: documentation ( source)
<?php
$batchIn = "1111111111111122222222222222";
$batchSplit = str_split($batchIn, 14);
$count = 0;
foreach($batchSplit as $value) {
$count++;
$urls="https://circ.sd00.worldcat.org/LHR?q=barcode%3A" . $value;
}
echo $urls;