Get count of each unique value in one column of a 2d array

by

Use array_key_exists & increment the count,

$newArray = array();
foreach ($the_outer_array as $key=>$value) {
    $firstValue = $value[0];
    if ($foundKey = array_key_exists($firstValue,$newArray)) {
        $newArray[$firstValue] += 1;
    }
   else{
        $newArray[$firstValue] = 1;
   }
}

DEMO.

More Related Contents:

  1. How can you make a multidimensional array unique? [duplicate]
  2. Group 2d array’s row data by one column and sum another column within each group to produce a reduced 2d array
  3. Group rows in a 2d array and count number of rows in each respective group
  4. in_array() and multidimensional array
  5. Sum values of multidimensional array by key without loop
  6. Filter/Remove rows where column value is found more than once in a multidimensional array
  7. Combine two arrays
  8. Sorting a php array of arrays by custom order
  9. How do I sort a multidimensional array by one of the fields of the inner array in PHP? [duplicate]
  10. Sort array of objects by one property
  11. String with array structure to Array [duplicate]
  12. Restructure multidimensional array of column data into multidimensional array of row data [duplicate]
  13. Implode a column of values from a two dimensional array [duplicate]
  14. Recursively remove empty elements and subarrays from a multi-dimensional array
  15. PHP remove duplicate values from multidimensional array
  16. Checking if array is multidimensional or not?
  17. PHP combine two associative arrays into one array
  18. using array_search for multi dimensional array
  19. Dynamic array keys
  20. sum specific values in a multidimensional array (php)
  21. How to check if a specific value exists at a specific key in any subarray of a multidimensional array?
  22. Group 2d array data using column value to create a 3d array
  23. Get array’s key recursively and create underscore separated string
  24. php multidimensional array get values
  25. Set value of single object in multidimensional array in twig template
  26. PHP convert nested array to single array while concatenating keys?
  27. Compare two array and get all differences
  28. Group array data on one column and sum data from another column to form a flat associative array
  29. Convert delimited string into array key path and assign value
  30. PHP: Check for duplicate values in a multidimensional array

Leave a Comment