我使用php和mysql来设置字幕，如果它们存在于数据库中的话。如果它们不存在，它就不会出现在播放器中。
我想有某种cookie，它可以记住访问者选择的语言，并在默认情况下为将来的视频启用标题。现在荷兰语字幕上有'default=“true”'(如果可能，请使用备份语言。）

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        <?php if(empty($episode['sub_eng'])){}else{?><track src="<?php printf ("%s",$episode['sub_eng']); ?>" kind="subtitles" srclang="en" label="English"><?php }?>
        <?php if(empty($episode['sub_eng_sign'])){}else{?><track src="<?php printf ("%s",$episode['sub_eng_sign']); ?>" kind="subtitles" srclang="en" label="English Signs and Songs"><?php }?>
        <?php if(empty($episode['sub_eng_sdh'])){}else{?><track src="<?php printf ("%s",$episode['sub_eng_sdh']); ?>" kind="subtitles" srclang="en" label="English SDH"><?php }?>
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        <?php if(empty($episode['sub_fin'])){}else{?><track src="<?php printf ("%s",$episode['sub_fin']); ?>" kind="subtitles" srclang="fi" label="Finnish"><?php }?>
        <?php if(empty($episode['sub_fre'])){}else{?><track src="<?php printf ("%s",$episode['sub_fre']); ?>" kind="subtitles" srclang="fr" label="French"><?php }?>
        <?php if(empty($episode['sub_ger'])){}else{?><track src="<?php printf ("%s",$episode['sub_ger']); ?>" kind="subtitles" srclang="de" label="German"><?php }?>
        <?php if(empty($episode['sub_ita'])){}else{?><track src="<?php printf ("%s",$episode['sub_ita']); ?>" kind="subtitles" srclang="it" label="Itaian"><?php }?>
        <?php if(empty($episode['sub_nor'])){}else{?><track src="<?php printf ("%s",$episode['sub_nor']); ?>" kind="subtitles" srclang="it" label="Norwegian"><?php }?>
        <?php if(empty($episode['sub_por'])){}else{?><track src="<?php printf ("%s",$episode['sub_por']); ?>" kind="subtitles" srclang="it" label="Portuguese"><?php }?>
        <?php if(empty($episode['sub_spa'])){}else{?><track src="<?php printf ("%s",$episode['sub_spa']); ?>" kind="subtitles" srclang="es" label="Spanish"><?php }?>
        <?php if(empty($episode['sub_swe'])){}else{?><track src="<?php printf ("%s",$episode['sub_swe']); ?>" kind="subtitles" srclang="it" label="Swedish"><?php }?>
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    window.hola_player({                                                
      player: '#video',                                                     
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