Pulling Variable out of an Array

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I am trying to pull a variable out of an array with name of variable coming from another variable.

I have tried both: $get_results[$name] and $get_results->$name with no success.

I keep on getting following error on $get_results[$name]: Fatal error: Uncaught Error: Cannot use object of type stdClass as array in But on $get_results->$name it skips over it.

The $name is loaded by user. The $get_results is loaded by MYSQL database

$name = 'test2'
$get_results = array('test' - > '1', 'test2' - > '2');

if (!isset($get_results[$name])) {
  if (empty($get_results[$name])) {
    $value = $get_results[$name];
  } else {
    $value = "";
  }
}
elseif(!isset($_POST[$name])) {
  $value = Input::get($name);
} else {
  $value = "";
}

I am trying to get the value from $get_results from test2.


I have made the changes to my script:

    if(isset($get_results[$name])){
        if(!empty($get_results[$name])){
            $value = $get_results[$name];
        } else {
            $value = "";
        }
    }elseif(!isset($_POST[$name])){
        $value = Input::get($name);
    }else {
        $value = "";
    }

When I try to pull the data from $get_results[$name] its dies with error: Cannot use object of type stdClass as array

your get_results variable returns an object

use this:

get_results->$name;

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You are running into a syntax error while initializing your array. Associative array uses => rather than ->.

So, just replace

$get_results = array ('test' -> '1', 'test2' -> '2');

with

$get_results = array ('test' => '1', 'test2' => '2');

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First thing you have a syntax error in array creation update -> to =>.

do

$name = 'test2';
$get_results = array ('test' => '1', 'test2' => '2');
echo 'value will be : '.$get_results[$name];die;

Output:

value will be : 2

Second you have logic error too in if Please check below corrected code

$name = 'test2';
$get_results = array('test' => '1', 'test2' => '2');
if (isset($get_results[$name])) {//check if $name is in array will true
    if (!empty($get_results[$name])) {//check if $name in array is not empty
        $value = $get_results[$name];
    } else {
        $value = "test 1";
    }
} elseif (!isset($_POST[$name])) {
    $value = "test 2";//Input::get($name);
} else {
    $value = "test 3";
}
echo 'value will be : '.$value;die;

Output:

value will be : 2

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PHP extract() Function, Using arrays. 12/26/2018; 2 minutes to read; In this article. You can declare an array to work with a set of values of the same data type.An array is a single variable with many compartments to store values, while a typical variable has only one storage compartment in which it can store only one value.

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Comments
  • It fixed the issue. Thank You