FAQ Topic - How do I get a jsp/php variable into client-side javascript? (2010-09-03)

[FAQ server]

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FAQ Topic - How do I get a jsp/php variable into
client-side javascript?
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Use a server-side language to generate the javascript.

Certain characters of ECMAScript strings must be escaped by backslash.
These include quote marks, backslash, and line terminators.

JSP Example, using Apache Commons: `org.apache.commons.lang.StringEscapeUtils`:

var jsVar = "<%= StringEscapeUtils.escapeJavaScript(str) %>";

PHP example using `addcslashes`:

var jsVar = "<?php echo addcslashes($str,"\\\'\"\n\r"); ?>";

<URL: http://jibbering.com/faq/example/addcslashes.php>
<URL: http://php.net/manual/en/function.addcslashes.php>
<URL: http://commons.apache.org/lang/>

The complete comp.lang.javascript FAQ is at
http://jibbering.com/faq/

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