¿Cómo se comprueba si un elemento de una matriz está vacío?

How do you check if an element in an array is empty?

The array can be checked if it is empty by using the array. length property. This property returns the number of elements in the array. If the number is greater than 0, it evaluates to true.

The in_array() function is an inbuilt function in PHP. The in_array() function is used to check whether a given value exists in an array or not. It returns TRUE if the given value is found in the given array, and FALSE otherwise.

You can check for an empty array by using the following: You can use array_diff () and array_diff_key (): array_diff () extracts all items which are not the same (therefore leaving out the blanks), array_diff_key gives back the differences to the original array. Here is a simple solution to check an array for empty key values and return the key.

Specifies an array Optional. You can specify a value, then only the keys with this value are returned Optional. Used with the value parameter. Possible values: true – Returns the keys with the specified value, depending on type: the number 5 is not the same as the string “5”. false – Default value.

array_keys() returns the keys, numeric and string, from the array. If a search_value is specified, then only the keys for that value are returned. Otherwise, all the keys from the array are returned. An array containing keys to return. If specified, then only keys containing these values are returned.

Returns FALSE if var exists and has a non-empty, non-zero value. Otherwise returns TRUE. From your array example I take it as you want to exclude the 0 as an integer. If that’s the case this would do the trick: If you want to exclude other conditions that empty considers just negate them in that condition.