将PHP字符串传递给JavaScript：未终止的字符串文字

Question

i am assigning PHP var to my javascript var and sending to PHP file through ajax-jQuery, but my php variable contains newline chars which i have replaced with <br>

e.g.            $values1 = 'abc<br>pqr<br>xyz';  $values2 = 'xyz<br>lmn';
javascript -    var data = 'val1=<?php echo $values; ?>&val2=<?php echo $values2; ?>';

and then ajax script to post data to PHP file

but when i print this data on console it is giving me error- SyntaxError: unterminated string literal.

Can anyone help ?

Answer 1

Your JS code:

var data = 'val1=<?php echo $values1; ?>&val2=<?php echo $values2; ?>';

Will give Javascript syntax error if one or more of your PHP variables $values1 OR $values2 contain single quote ' in them.

Make sure your PHP variable don't contain single quotes in them by replacing all single quotes to something else otherwise use double quotes " to create JS var like this:

var data = "val1=<?php echo $values1; ?>&val2=<?php echo $values2; ?>";

Provided PHP variables don't contain double quotes.

Answer 2

First of all, you have a typo, that might cause an error:

// --------------------------------v
var data = 'val1=<?php echo $values1; ?>&val2=<?php echo $values2; ?>';

Then, I suggest you to use object as data parameter for Ajax request:

var data = {
    val1: '<?php echo $values1; ?>',
    val2: '<?php echo $values2; ?>'
};

Also it is better to escape single quotes ' in both $values1 and $values2 variables.

Answer 3

Try using <br /> instead of <br> . Just guessing here, no testing.