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<?php if (isset($test) && $test != NULL) { echo '$test set and not null\n'; } else { echo '$test not set and not null\n'; } $test = ''; if (isset($test) && $test != NULL) { echo '$test set and not null\n'; } else { echo '$test not set and not null\n'; } if (isset($test)) { echo '$test set, even when null\n'; } $test = "abc"; if (isset($test) && $test != NULL) { echo '$test set and not null\n'; } else { echo '$test not set and not null\n'; }
Output for git.master, git.master_jit, rfc.property-hooks
$test not set and not null\n$test not set and not null\n$test set, even when null\n$test set and not null\n

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