$json = <<<JSON
{
"origin":"Delhi",
"destination":"London",
"passengers":
[
{
"name":"Mr. Perry Mason",
"type":"Adult",
"age":28
},
{
"name":"Miss Irene Adler",
"type":"Adult",
"age":25
}
],
"travelDate":"17-Dec-2010"
}
JSON;
$objJson = json_decode($json);
switch(json_last_error())
{
case JSON_ERROR_NONE:
echo 'Travel date is:' . $objJson->travelDate;
break;
case JSON_ERROR_SYNTAX:
echo 'Incorrect json : Please check your json syntax';
break;
case JSON_ERROR_CTRL_CHAR:
echo 'Control character error';
break;
case JSON_ERROR_DEPTH:
echo 'The json string has exceeded maximum allowed stack depth';
break;
}