(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
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This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
$td
) : bool
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锟斤拷锟斤拷锟界，锟斤拷锟斤拷 cbc 锟斤拷 ecb 模式锟斤拷锟皆凤拷锟斤拷 TRUE锟斤拷锟斤拷锟斤拷 cfb 锟斤拷锟斤拷模式锟斤拷锟皆ｏ拷锟斤拷锟斤拷 FALSE锟斤拷锟斤拷
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锟斤拷锟斤拷锟斤拷锟斤拷纸诜锟绞斤拷锟斤拷锟斤拷锟斤拷锟斤拷 FALSE锟斤拷