note 100810 deleted from function.json-encode by danbrown
| From: | danbrown@php.net | Date: | Wed, 10 Nov 2010 15:11:03 +0000 |
| Subject: | note 100810 deleted from function.json-encode by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-173912@lists.php.net to get a copy of this message | ||
Note Submitter: boukeversteegh at gmail dot com
----
For users of php 5.1.6 or lower, a native json_encode function. This version handles objects, and
makes proper distinction between [lists] and {associative arrays}, mixed arrays work as well. It can
handle newlines and quotes in both keys and data.
This function does _not_ convert non-ascii symbols to "\uXXXX" format as does json_encode.
Besides that, it gives the exact same output as json_encode.
<?php
function __json_encode( $data ) {
if( is_array($data) || is_object($data) ) {
# See php.net / is_array
$is_assoc =
(is_array($data) &&
0 !== count(array_diff_key($data, array_keys(array_keys($data)))));
if( $is_assoc || is_object($data) ) {
$items = Array();
foreach( $data as $key => $value ) {
$items[] = __json_encode("$key") . ':' . __json_encode($value);
}
$json = '{' . implode(',', $items) . '}';
} else {
$json = '[' . implode(',', array_map('__json_encode', $data) ) .
']';
}
} elseif( is_int($data) || is_float($data) ) {
$json = strtolower($data); # like 10e99
} elseif( null === $data ) {
$json = 'null';
} else {
$json = '"' . addcslashes($data, "\"\\\n\r") . '"';
# String
}
return $json;
}
?>
Example:
<?php
$data = new StdClass();
$data->foo = "bar";
$data->dict = Array('1' => 1, '2' => 2, '3' =>
'three', 'four');
$data->list = Array('one','two','three','',null,new
StdClass(),Array(),10e99);
json_encode($data) === __json_encode($data); // true
?>