infer numeric types on ctype_digit() #1615
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staabm
commented
Aug 12, 2022
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| function foo($mixed, string $s) { | ||
| if (ctype_digit($mixed)) { | ||
| assertType('float|int|numeric-string', $mixed); |
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using ctype_digit on non-strings is deprecated but still allowed
ondrejmirtes
requested changes
Aug 13, 2022
| assertType('float|int|numeric-string', $mixed); | ||
| return; | ||
| } | ||
| assertType('mixed~float|int', $mixed); |
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It can still be int if $mixed is 42 for example. The difference between ctype_digit and is_numeric is described in the docs https://www.php.net/manual/en/function.ctype-digit.php, this will need custom extension that probably takes advantage of IntegerRangeType or something...
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closes phpstan/phpstan#5908