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<?php declare(strict_types = 1); function select1(int $offset = 0) { var_dump($offset); } function select2(?int $offset = 0) { var_dump($offset); } function select3(int $offset = null) { var_dump($offset); } function select4(?int $offset = null) { // same as select3 var_dump($offset); } select1(); select1(0); // select1(null); // <------ fails select2(); select2(0); select2(null); select3(); select3(0); select3(null); select4(); select4(0); select4(null);
Output for git.master, git.master_jit, rfc.property-hooks
int(0) int(0) int(0) int(0) NULL NULL int(0) NULL NULL int(0) NULL

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