有效的JSON不能与jQuery.parseJSON（）一起使用

Question

I'm saving a JSON string to a file and trying to read it back. For some reason it won't read it back. jsonlint.com is telling me it is a valid JSON.

Here is the JSON string:

{"userdef":{"vlan10":{"dfault":{"down":{"rate":"876","ceil":"876"},"up":{"rate":"876","ceil":"876"}},"upsell":{"down":{"rate":"876","ceil":"876"},"up":{"rate":"876","ceil":"76"}}},"br0":{"dfault":{"down":{"rate":"798","ceil":"987"},"up":{"rate":"987","ceil":"987"}},"upsell":{"down":{"rate":"98","ceil":"987"},"up":{"rate":"987","ceil":"89"}}},"br1":{"dfault":{"down":{"rate":"3","ceil":"654"},"up":{"rate":"654","ceil":"63"}},"upsell":{"down":{"rate":"65","ceil":"4"},"up":{"rate":"646","ceil":"5"}}},"eth3":{"dfault":{"down":{"rate":"65","ceil":"7876"},"up":{"rate":"7657","ceil":"5"}},"upsell":{"down":{"rate":"7865","ceil":"7"},"up":{"rate":"7","ceil":"5"}}}}}

Here is javascript/php code:

<?
if (file_exists('/tmp/qosconfig.conf'))
{
?>
var config = jQuery.parseJSON('<?=file_get_contents("/tmp/qosconfig.conf");?>');    
<?
}
?>

Answer 1

This is a rather odd way of doing this. If you have the JSON string available to you in PHP, you can output it into the javascript as an object literal which saves the parsing step.

<?
if (file_exists('/tmp/qosconfig.conf')) {
    $json = file_get_contents('/tmp/qosconfig.conf');
?>
var config = <?php echo $json; ?>;    
<?
}
?>