php count array where inner value true

Question

I wish to count the values in the array Course that have the inner value Completed=>true. There are two values when I do a standard count. I have tried is_array and array_filter

count($employee['Course']

output: 2

Course(array)
    0(array)
        id:1
        name:Handling
        CoursesEmployee(array)
            id:1
            employee_id:1
            course_id:1
            completed(true)
     1(array)
         id:3
         name:Induction
         CoursesEmployee(array)
             id:2
             employee_id:1
             course_id:3
             completed(false)

How have you tried array_filter() and what was the result? — Ja͢ck
– Ja͢ck, Commented Nov 19, 2014 at 12:35
array_filter() takes an optional argument to specify a function that gets called for each element in your array. I'd suggest you start with that. — Ja͢ck
– Ja͢ck, Commented Nov 19, 2014 at 12:38

Alex Shesterov · Accepted Answer · 2014-11-19 12:41:43Z

1

If you're using PHP 5.3 or higher, you may accomplish it via a single expression:

count(
  array_filter(
    $employee['Course'], 
    function($item){return $item['CoursesEmployee']['completed'];} 
  )
)

See docs on array_filter and anonymous functions.

answered Nov 19, 2014 at 12:41

Alex Shesterov

27.8k14 gold badges91 silver badges110 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Keith Power Over a year ago

thank you, I have a better understanding of array_filter

Erik · Accepted Answer · 2014-11-19 14:02:04Z

1

You can also use array_reduce, which can grind an array down to a single result.

array_reduce( $employee['Course'], function( $carry, $item ) { 
  return $carry + (bool)$item['CoursesEmployee']['completed'] ) { 
}, 0 );

Using the fact that booleans have an int value of 0 for false or 1 for true.

Docs: http://php.net/manual/en/function.array-reduce.php

answered Nov 19, 2014 at 14:02

Erik

3,63717 silver badges30 bronze badges

Collectives™ on Stack Overflow

php count array where inner value true

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related