using php string with line breaks as javascript variable

Question

I was working on project in which I have to get some text from the database and display it in the text area. Working fine with no line breaks and tabs. but when a line breaks occurs it gives the error

Uncaught SyntaxError: Invalid or unexpected token

My java script code is as :

<script type="application/javascript">


$(document).ready(function () {


    document.getElementById('job_type').value = "<?php echo set_value('job_type') ?>";
    document.getElementById('job_cat').value = "<?php echo set_value('job_cat') ?>";

    if("<?php if(validation_errors() == false) echo "false"; else echo "true"; ?>"=="false")
    {
        $('#job_title').val("<?php echo $job[0]->job_title ?>");
        $('#job_type').val("<?php echo $job[0]->job_type ?>");
        $('#job_cat').val("<?php echo $job[0]->job_cat ?>");
        $('#salary').val("<?php echo $job[0]->salery ?>");
        $('#job_descp').text("<?php echo $job[0]->job_desc ?>");//error here



    }


    });


});


</script>

The text it was trying to set was

Error details are shown in images

Debug info

I have tried using .html() and .val() too but nothing worked. How can I handle it.

you can try using the php function: htmlspecialchars

Tom
– Tom

2018-07-01 20:43:36 +00:00
Commented Jul 1, 2018 at 20:43 — Tom
– Tom, Commented Jul 1, 2018 at 20:43
@Tom i tried isn't working also tried nl2br and str_replace

Arsii Rasheed
– Arsii Rasheed

2018-07-01 21:17:56 +00:00
Commented Jul 1, 2018 at 21:17 — Arsii Rasheed
– Arsii Rasheed, Commented Jul 1, 2018 at 21:17

MC57 · Accepted Answer · 2018-07-01 21:44:11Z

This has already been answered here https://stackoverflow.com/a/4270709/3004335

However, you can use json_encode

<script type="application/javascript">
$(document).ready(function () {
    document.getElementById('job_type').value = "<?php echo set_value('job_type') ?>";
    document.getElementById('job_cat').value = "<?php echo set_value('job_cat') ?>";

    if("<?php if(validation_errors() == false) echo "false"; else echo "true"; ?>"=="false")
    {
        $('#job_title').val(<?php echo json_encode($job[0]->job_title); ?>);
        $('#job_type').val(<?php echo json_encode($job[0]->job_type); ?>);
        $('#job_cat').val(<?php echo json_encode($job[0]->job_cat); ?>);
        $('#salary').val(<?php echo json_encode($job[0]->salery); ?>);
        $('#job_descp').text(<?php echo json_encode($job[0]->job_desc); ?>);//error here
    }
    });
});
</script>

You do however need to be careful about cross site scripting

See here https://www.owasp.org/index.php/XSS_(Cross_Site_Scripting)_Prevention_Cheat_Sheet in particular rule #0

mscdeveloper · Accepted Answer · 2018-07-01 20:47:03Z

0

Remove line break(CR LF) in job[0]->job_desc like this:

$('#job_descp').text("<?php echo str_replace (array("\r\n", "\n", "\r"), '<br>', $job[0]->job_desc);?>");

answered Jul 1, 2018 at 20:47

mscdeveloper

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1 Comment

Arsii Rasheed Over a year ago

the thing is that echoing text will convert it back to line break ...so isn't usable

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