How can i make sure a php to js string won't break
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I am writing a webpage that involves using a php array of strings to output a js array as follows
    while($main2row = mysqli_fetch_assoc($result)) {
    $tSummary[$main2row['id']] = '"'.$main2row['content'].'"';
    
    	$tTitle[$main2row['id']] = '"'.$main2row['title'].'"';
    
    }

    //the above gets the php from the sql database, then stores it in an array, both are string arrays

    foreach ( $tSummary as $key => $val) 
    {
     
    echo "summArray['".$key."'] = ".nl2br($val).";\n"; 
    
    } 
    
    foreach ( $tTitle as $key => $val) 
    
    { 
    
    echo "titleArray['".$key."'] = ".nl2br($val).";\n"; 
    
    } 
    //these foreach loops will print in a js script and will store the php arrays as js arrays

I know I should probably be using json but this is the way it was set up for me by someone else and I feel like I should adhere to their code. 

 The PROBLEM is that when the data is stored, it fails in the following way:

    summArray['225594172793552897'] = "      blah blah blah blah blah - blah.<br />
    <br />
           blah blah blah blah.....";  /* this one is messed up */

    summArray['225595300046307328'] = "text text text text text text text text text text text text text text ."; /* this one is fine */

I notice that the string breaks wherever there is a line break so i tried to use nl2br but, while that added a br tag, it did not remove the line break. is there any way I can get rid of this line break?

