How do I avoid text coming from PHP in JavaScript?

I am using jPlayer to display some videos and I am creating a playlist on the fly in a php foreach statement:

var playlistacting = 
            [
        <?php foreach($this->result as $val){?>
                {
                    title:  '<?php echo $val->getTitle();?>',
                    artist: '<?php echo $val->getDes();?>',
                    poster: "<?php echo $val->getVideoId();?>.jpg",
                    thumb:  "<?php echo $val->getVideoId();?>.jpg",
                    flv:    "<?php echo $val->getVideoId();?>.flv",
                },
        <?php }?>
];

      

        
        
        
      

    

and $val->getDes()

an example would beI have a one-hour (approximately) solo musical revue called "Manhattan With A Twist". The entire...

I get an error

unterminated string literal
[Break On This Error]   

artist: 'I have a one-hour (approximately)solo musical revue called "Manhattan W...

jquery.js (line 2, col 32)

      

        
        
        
      

    

and is at the beginning '

at the beginning of the line.

I can do it: title: "<?php echo htmlspecialchars($val->getTitle());?>",

and I get the same error but with "

instead '

.

I'm not sure what's going on here. Does he complain about '

not running away or what?

Any ideas?