- addcslashes: documentation ( source)
<?php
$ids1 = [];
function foo(array $ids) {
echo(addcslashes('{"ordinal":{"suffix":"{lastDigit, plural, =1 {st} =2 {nd} =3 {rd} other {th}}"},"separators":{"decimalPoint":".","thousandGroup":","},"postfixes":{"thousands":"K","millions":"M","billions":"B"}}'));
}
foo($ids1);