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<?php var_dump( (array)5, (array)null, (array) 0); $tests = [ '[] == false' => [] == false, '"" == false' => "" == false, '"ABC" == false' => "ABC" == false, '"123" == false' => "123" == false, 'null == false' => null == false, '0 == false' => 0 == false, '0.49 == false' => 0.49 == false ]; $i = 1; foreach($tests as $name => $result) { echo ++$i . ") " . $name . ($result ? ' => T' : ' => F') . "\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [0]=> int(5) } array(0) { } array(1) { [0]=> int(0) } 2) [] == false => T 3) "" == false => T 4) "ABC" == false => F 5) "123" == false => F 6) null == false => T 7) 0 == false => T 8) 0.49 == false => F

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