Bug #76717 [Opn->Ver]: var_export() does not create a parsable value for PHP_INT_MIN

Edit report at https://bugs.php.net/bug.php?id=76717&edit=1 ID: 76717 Updated by: nikic@php.net Reported by: fredemmott@php.net Summary: var_export() does not create a parsable value for PHP_INT_MIN -Status: Open +Status: Verified Type: Bug Package: Unknown/Other Function Operating System: All PHP Version: 7.3.0beta1 Block user comment: N Private report: N New Comment: Nice catch. We should probably generate -9223372036854775807-1. Previous Comments: ------------------------------------------------------------------------ [2018-08-07 17:30:11] fredemmott@php.net Description: ------------ var_export() is documented as "Outputs or returns a parsable string representation of a variable" It generates an unparseable value for PHP_INT_MIN: it renders it as a negative decimal. -x is not a negative literal; it's a unary op on x. var_export generates '-9223372036854775808' - but as '9223372036854775808' is greater PHP_INT_MAX, this generates a float. Test script: --------------- <?php var_export(PHP_INT_MIN); echo "\n"; var_export(PHP_INT_MAX); echo "\n"; $min = eval('return '.var_export(PHP_INT_MIN, true).';'); $max = eval('return '.var_export(PHP_INT_MAX, true).';'); var_dump($min === PHP_INT_MIN); var_dump($max === PHP_INT_MAX); var_dump($min); var_dump($max); Expected result: ---------------- The last 4 lines of output should be true, true, (an int: value of PHP_INT_MIN), (an int: value of PHP_INT_MAX) Actual result: -------------- -9223372036854775808 9223372036854775807 bool(false) bool(true) float(-9.2233720368548E+18) int(9223372036854775807) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76717&edit=1