Question

I have a zend form select element that calls a javascript function onchange. The following:

$element->setAttribs(array( 'onchange' => 'toggleSelect(this.value, ' . json_encode($this->_testData) . ')'));

The problem is, both the ZEND onchange and the json_encode use double quotes, so it becomes:

<select onchange="toggleSelect(1, {"foo" : "bar"})"></select>

Which complains about an invalid property id. I’m thinking it is the double quotes that are causing the problem, but don’t know how to fix.

Answer 1

Try

$element->setAttribs(array( 'onchange' => 'toggleSelect(this.value, ' . htmlspecialchars(json_encode($this->_testData)) . ')'));

Using htmlspecialchars you should end up with

<select onchange="toggleSelect(1, {&quot;foo&quot; : &quot;bar&quot;})"></select>

which should be valid html and still interpret your argument as a valid JSON object.