I'm looking for accessing a property of a object property of an object like this :
$property = "user->name";
echo $object->$property; // ??, I want $object->user->name
I tried a lot of things, but none seems work.
Thanks
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1What ?? Can you explain briefly .. show your objectM A SIDDIQUI– M A SIDDIQUI2017-02-16 06:17:27 +00:00Commented Feb 16, 2017 at 6:17
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Possible duplicate of Dynamically access nested objectM. Eriksson– M. Eriksson2017-02-16 06:27:12 +00:00Commented Feb 16, 2017 at 6:27
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I don't think this is a duplicate, I can't use XPath as suggested because this is not XML, and I cannot access directly to what I want. To answer to M A SIDDIQUI, I need to store the property of an object as shown ($property) and reuse this variable on the $object object.Treast– Treast2017-02-16 06:31:06 +00:00Commented Feb 16, 2017 at 6:31
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3 Answers
I don't think you can make multiple dereferences this way. You'll be looking for a variable in $object called user->name. Instead, you can split by -> and then make multiple calls, something like:
$test = 'user->name';
$val = $object;
foreach(explode('->', $test) as $item) {
$val = $val->$item;
}
echo $val; # This is the result of $object->user->name
1 Comment
jumpjack
Shouldn't the first "$var" be a "$val"? . Apart from this, this raw statement works in my code: echo $json_dump->geometry[6]->obs[2]->hayabusa2->delay_from; But I cannot "simulate" it by assigning "geometry[6]->obs[2]->hayabusa2->delay_from" to $test and using your code, I get error "Notice: Undefined property: stdClass::$geometry[6] "
If you split your variable into 2 like so:
list($property1, $property2) = explode('->', $property);
echo $object->{$property1}->{$property2};
1 Comment
apotek
Less flexible, but more performant and highly legible. +1 for avoiding recursion.
Try the following :
$property = "user->name";
$prop_arr = explode('->',$property);
foreach ($prop_arr as $prop){
$obj = $obj->{$prop};
}
echo $obj;
