json
<?php
$int 
123;
echo 
json_encode($int)."<br />\n";
$str1 "This is JSON";
echo 
json_encode($str1)."<br />\n";
$str2 "ν•˜μ΄νΌν…";
echo 
json_encode($str2)."<br />\n";
$arr1 = array(1,2,3);
echo 
json_encode($arr1)."<br />\n";
$arr2 = array('numbers'=>$arr1$str1$str2);
echo 
json_encode($arr2)."<br />\n";
$obj = new stdClass();
$obj->$arr1;
echo 
json_encode($obj)."<br />\n";
?>
Output
123
"This is JSON"
"\ud558\uc774\ud37c\ud14d"
[1,2,3]
{"numbers":[1,2,3],"0":"This is JSON","1":"\ud558\uc774\ud37c\ud14d"}
{"a":[1,2,3]}