Pass a PHP string to a JavaScript variable (and escape newlines) [duplicate]
Expanding on someone else's answer:
<script> var myvar = <?php echo json_encode($myVarValue); ?>;</script>Using json_encode() requires:
- PHP 5.2.0 or greater
$myVarValueencoded as UTF-8 (or US-ASCII, of course)
Since UTF-8 supports full Unicode, it should be safe to convert on the fly.
Note that because json_encode escapes forward slashes, even a string that contains </script> will be escaped safely for printing with a script block.
function escapeJavaScriptText($string){ return str_replace("\n", '\n', str_replace('"', '\"', addcslashes(str_replace("\r", '', (string)$string), "\0..\37'\\")));}