What does a leading zero do for a php int?

Question

echo(073032097109032116104101032118101114121032109111100101108032111102032097032109111100101114110032109097106111114032103101110101114097108046);

E

Answer 1

Manual:

Warning

If an invalid digit is given in an octal integer (i.e. 8 or 9), the rest of the number is ignored.

Example #2 Octal weirdness

So your number gets cut off after 0730320, which is 241872 in decimal.