I have a array which comes through an POST request from javascript/jquery. In php the array content is as follows:
[{"name":"Ta","def":"somestring"},{"name":"WSCall","def":"somestring"},{"name":"manual","def":"somestring"}]
How do I iterate over this array to get the keys and values?
When I do: json_decode($_POST['shape_defs'])
How do I iterate over this array. Doing foreach says:
Invalid argument supplied for foreach()
While the (current) other two answers do get working code, they fail to address why you get the error you do.
$data = json_decode($j);
var_dump($data);
This will produce an object, with keys as properties. An object is not valid to be passed to foreach unless it implements Traversable.
What you need to do is:
$data = json_decode($j,true);
This will make objects be associative arrays instead, which are compatible with foreach and most likely the rest of your code.
var_dump($data) it contains array of objects which is valid in foreachWhen there's a definite number of children, you can use nested foreach-loops:
$json = '[{"name":"Ta","def":"somestring"},{"name":"WSCall","def":"somestring"}, {"name":"manual","def":"somestring"}]';
$decode = json_decode($json, true);
foreach ($decode as $k1 => $v1) {
foreach ($v1 as $k2 => $v2) {
echo "$k2: $v2, ";
}
echo "<br>";
}
It will output this:
name: Ta, def: somestring, <br>
name: WSCall, def: somestring, <br>
name: manual, def: somestring, <br>
$j= '[{"name":"Ta","def":"somestring"},{"name":"WSCall","def":"somestring"},{"name":"manual","def":"somestring"}]';
$data = json_decode($j,true);
foreach($data as $key=>$val){
foreach($val as $k=>$v){
echo "Key :".$k." Value :".$v."<br />";
}
}
