How to pull element from array MongoDB php?

Question

I have the following document:

"parameters" : [
    {
        "592193d6470e6cf80d3c9874" : {
            "Speed" : "1",
            "Acceleration" : "2"
        }
    }]

I need to pull element by key 592193d6470e6cf80d3c9874.

I tried:

 $this->collection->update(
            [],
            ['$unset' => ['parameters' => $id]], ['multiple' => true]);

Where $id id 592193d6470e6cf80d3c9874.

$this->collection->update([],['$unset' => ['parameters' => null]], ['multiple' => true]); — RïshïKêsh Kümar
– RïshïKêsh Kümar, Commented May 21, 2017 at 14:50
$this->collection->update([],['$unset' => ['parameters.'.$parameterId => null]], ['multiple' => true]); .... try — RïshïKêsh Kümar
– RïshïKêsh Kümar, Commented May 21, 2017 at 14:53
what do you mean by pull ? you want to delete that document ? — hassan
– hassan, Commented May 21, 2017 at 15:04
It does not work: $this->collection->update([],['$unset' => ['parameters.'.$id => null]], ['multiple' => true]); — Blablacar
– Blablacar, Commented May 21, 2017 at 16:04

Pang · Accepted Answer · 2017-05-22 00:34:16Z

1

$this->collection->update(['$unset' => ['parameters'=> ['_id'] => $id], ['multiple' => true]);

or

$this->collection->update(['$unset' => ['parameters.'.$parameterId => null]], ['multiple' => true]);

edited May 22, 2017 at 0:34

Pang

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answered May 21, 2017 at 15:01

RïshïKêsh Kümar

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6 Comments

Blablacar Over a year ago

Okay man, thank you, can I ask you, how to add in parameters? I tried:

$this->collection->update(                     ["prototype_id" => $id],                     ['$set' => ["parameters" => array(array($key => $data))]],                     ["multiple" => true]);

It overwrites all parameters

Blablacar Over a year ago

And does not work you sample, cause parameters is array

RïshïKêsh Kümar Over a year ago

$this->collection->update(['$unset' => ['parameters'=> ['_id'] => $id], ['multiple' => true]);

Blablacar Over a year ago

Can you give me your private contact?

RïshïKêsh Kümar Over a year ago

[email protected]

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