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                根據類型變量生成標識號,這個可以用法生成對變量的唯一識別號,比如緩存緩存的標識key的一部分 ~~~ /** * 根據PHP各種類型變量生成唯一標識號 * @param mixed $mix 變量 * @return string */ function to_guid_string($mix) { if (is_object($mix)) { return spl_object_hash($mix); } elseif (is_resource($mix)) { $mix = get_resource_type($mix) . strval($mix); } else { $mix = serialize($mix); } return md5($mix); } ~~~ ## 函數用法 可以得到各個不同類型不同變量,生成的標識符都是不一樣的。 ~~~php $str?=?'string'; echo?to_guid_string($str).'<br/>'; $str?=?array(); echo?to_guid_string($str).'<br/>'; $str?=?12; echo?to_guid_string($str).'<br/>'; $str?=?1; echo?to_guid_string($str).'<br/>'; ~~~
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