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About PHP_INT_MAX
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| # php --version | |
| PHP 7.0.12 (cli) (built: Nov 3 2016 12:54:26) ( NTS ) | |
| Copyright (c) 1997-2016 The PHP Group | |
| Zend Engine v3.0.0, Copyright (c) 1998-2016 Zend Technologies | |
| # php -a | |
| php > var_dump((PHP_INT_MAX + 1) > PHP_INT_MAX); | |
| bool(false) | |
| php > var_dump((PHP_INT_MAX + 1) < PHP_INT_MAX); | |
| bool(false) | |
| php > var_dump((PHP_INT_MAX + 1) == PHP_INT_MAX); | |
| bool(true) | |
| php > var_dump((PHP_INT_MAX + 1000) == PHP_INT_MAX); | |
| bool(true) |
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IIRC there is an old proposal to switch to gmp by default on interger overflow.
BTW, huge performance issue.