Laravel 5 Collections: Calculating the Median Value of a Collection With median

In mathematics, the median value is the numeric value that separates the higher half a data sample from the lower half; the median value does not necessarily exist within the data set itself. The median method can be used to get the median value of the collection; a $key may be specified to limit the calculation to nested property values.

#Signature

1public function median(
2    $key = null
3);

#Example Use

The following example demonstrates both ways to invoke the median method on a collection:

 1// Create a collection of sample values.
 2$values = collect([
 3   100, 200, 300, 400
 4]);
 5 
 6// Create a collection of sample test scores.
 7$testScores = collect([
 8    [
 9        'name' => 'Alice',
10        'score' => 0.96
11    ],
12    [
13        'name' => 'Bob',
14        'score' => 0.79
15    ],
16    [
17        'name' => 'Charlie',
18        'score' => 0.88
19    ]
20]);
21 
22// Calculate the median value.
23$valuesMedian = $values->median();
24 
25// Calculate the median test score.
26$scoresMedian = $testScores->median('score');

After the above code has executed, our local variables would contain the following values:

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