Check if specific array key exists in multidimensional array – PHP

by

array_key_exists() is helpful.

Then something like this:

function multiKeyExists(array $arr, $key) {

    // is in base array?
    if (array_key_exists($key, $arr)) {
        return true;
    }

    // check arrays contained in this array
    foreach ($arr as $element) {
        if (is_array($element)) {
            if (multiKeyExists($element, $key)) {
                return true;
            }
        }

    }

    return false;
}

Working example: http://codepad.org/GU0qG5su

More Related Contents:

  1. PHP multidimensional array search by value
  2. How to sum all column values in multi-dimensional array?
  3. in_array() and multidimensional array
  4. Sum values of multidimensional array by key without loop
  5. Sorting a php array of arrays by custom order
  6. How do I sort a multidimensional array by one of the fields of the inner array in PHP? [duplicate]
  7. Sort array of objects by one property
  8. String with array structure to Array [duplicate]
  9. Get difference between associative rows of two 2-dimensional arrays
  10. Implode a column of values from a two dimensional array [duplicate]
  11. Recursively remove empty elements and subarrays from a multi-dimensional array
  12. Convert flat array to the multi-dimensional
  13. PHP remove duplicate values from multidimensional array
  14. Checking if array is multidimensional or not?
  15. PHP combine two associative arrays into one array
  16. Check if a specific value exists at a specific key in any subarray of a multidimensional array
  17. using array_search for multi dimensional array
  18. Using array_intersect on a multi-dimensional array
  19. Dynamic array keys
  20. Converting an array from one to multi-dimensional based on parent ID values
  21. sum specific values in a multidimensional array (php)
  22. Merge two indexed arrays of indexed arrays based on first column value
  23. Group 2d array data using column value to create a 3d array
  24. Get the maximum value from an element in a multidimensional array? [duplicate]
  25. Combine two 2d arrays and have duplicate rows removed
  26. How to create multi-dimensional array from a list?
  27. PHP convert nested array to single array while concatenating keys?
  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