方括号外的JSON丢失

Question

I need to have JSON objects inside an array like:

[{"term":"hemisected","description":"Cut into two equal parts; to bisect, especially along a medial longitudinal plane."},{"term":"polyuria","description":"A condition usually defined as excessive or abnormally large production or passage of urine."},{"term":"dyspnoea","description":"Shortness of breath."}]

However the following is outputting JSON as separate objects:

while ($row = mysql_fetch_array($result)) { 
        $data = array(
        'term' => $row['term'],
        'description' => $row['definition']
        );
echo json_encode($data);
}

Like:

{"term":"hemisected","description":"Cut into two equal parts; to bisect, especially along a medial longitudinal plane."}{"term":"polyuria","description":"A condition usually defined as excessive or abnormally large production or passage of urine."}{"term":"dyspnoea","description":"Shortness of breath."} 

Answer 1

Currently, the json structure is not well build because of the fact that it is called during the loop. It must be called after the array (in this case $data) has been built. Consider this example:

$data = array();
while ($row = mysql_fetch_array($result)) { 
    $data[] = array(
        'term' => $row['term'],
        'description' => $row['definition'],
    );
}

echo json_encode($data);