* base64解密 | 传入参 | 说明 | | --- | --- | | str | \[ 必填 \] 待解密内容 | | key | \[ 必填 \] 密钥 | | 回调参 | 说明 | | --- | --- | | \[ string \] | 处理完字符串 | * 案例 ~~~ $obj = $T_C->decode_64('FxvjS8bpmcOclGNo','key'); ~~~ > 中文abc123