View Helper - JSON¶
Introduction¶
When creating views that return JSON, it’s important to also set the appropriate response header. The JSON view helper does exactly that. In addition, by default, it disables layouts (if currently enabled), as layouts generally aren’t used with JSON responses.
The JSON helper sets the following header:
1 | Content-Type: application/json
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Most AJAX libraries look for this header when parsing responses to determine how to handle the content.
Basic Usage¶
Usage of the JSON helper is very straightforward:
1 | <?php echo $this->json($this->data) ?>
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Note
Enabling encoding using Zend\Json\Expr
The JSON helper accepts an array of options that will be passed to
Zend\Json\Json::encode()
and used internally to encode data.
Zend\Json\Json::encode
allows the encoding of native JSON expressions
using Zend\Json\Expr
objects. This option is disabled by default. To
enable this option, pass a boolean TRUE
to the enableJsonExprFinder
key of the options array:
1 2 3 | <?php echo $this->json($this->data, array(
'enableJsonExprFinder' => true,
)) ?>
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