Tab and pre wrapped around JSON output in Chrome
I am using this simple code to print an array as a JSON structure.
header('Content-Type: application/json');
echo json_encode($this->data, JSON_PRETTY_PRINT);
I'm using Chrome Version 28.0.1500.95 m. For some odd reason the output is wrapped in a pre tag with a tab character (ie t ) at the beginning.
JSON seems to be parsing okay but I still get that tab character when no data is sent. How can I fix this ?
<pre style="word-wrap: break-word; white-space: pre-wrap;"> {
"title": "Node",
"items": [
{
"label": "Do stuff",
"icon": "../ui/images/icons/16x16/icon.png",
"action": "dostuff"
}
]
}</pre>
Edit: Here's the code on the jQuery side:
$.ajax({
url : "/myproject/getmenu/",
type : 'GET',
dataType: "json",
success : function(data) {
//alert(JSON.stringify(data,undefined,2));
if (jQuery.isEmptyObject(data)) {
return;
}
title = data.title;
items = data.items;
selected.contextPopup({
title : title,
items : items
});
}
});
You need to remove whatever code adds the <pre> tag. This causes your response to be invalid JSON (the whitespace to prettyprint it is not a problem though) and thus makes jQuery fail when parsing it.
I couldn't see anything in the PHP docs about the JSON response being wrapped in <pre> but you could surely try it without the flag. I'd also make sure to check if the tag is actually in your response. If you use view-source and have a JSON-pretty-printing browser extension installed it might be added by that extension and not be in the actual JSON handled by your JavaScript code.
hmmm,I was searching for an correct answer my self but none of them worked for. but I tried to do as following and it worked for me ...
1- I set the content type to application/json
2- I used the die(json_encode($this->data)) instead of echo json_encode($this->data)
hope it will work for you although I guess its a bit too late :D forgive me for answering an old question I recently run into same issue myself
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