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<?php function doit($v) { var_dump($v); switch ($v) { case 0: echo "zero"; break; case null: echo "null"; break; case false: echo "false"; break; case '': echo "''"; break; } echo "\n\n"; } foreach (array(0, null, false, '', 'a string', '1', '1cat') as $v) doit($v);
Output for git.master, git.master_jit, rfc.property-hooks
int(0) zero NULL zero bool(false) zero string(0) "" null string(8) "a string" string(1) "1" string(4) "1cat"

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