Búsqueda Multidimensional Array en PHP
¿Cómo puedo buscar en la siguiente matriz multidimensional la cadena 'uk'?
<code>array(43) { [0]=> array(1) { ["country"]=> string(9) "Australia" } [1]=> array(1) { ["country"]=> string(7) "Bahrain" } [2]=> array(1) { ["country"]=> string(7) "Belgium" } [3]=> array(1) { ["country"]=> string(8) "Bulgaria" } [4]=> array(1) { ["country"]=> string(6) "Canada" } [5]=> array(1) { ["country"]=> string(7) "Croatia" } [6]=> array(1) { ["country"]=> string(6) "Cyprus" } [7]=> array(1) { ["country"]=> string(14) "Czech Republic" } [8]=> array(1) { ["country"]=> string(7) "Denmark" } [9]=> array(1) { ["country"]=> string(7) "Finland" } [10]=> array(1) { ["country"]=> string(7) "Germany" } [11]=> array(1) { ["country"]=> string(6) "Greece" } [12]=> array(1) { ["country"]=> string(9) "Hong Kong" } [13]=> array(1) { ["country"]=> string(7) "Hungary" } [14]=> array(1) { ["country"]=> string(7) "Iceland" } [15]=> array(1) { ["country"]=> string(5) "India" } [16]=> array(1) { ["country"]=> string(4) "Iran" } [17]=> array(1) { ["country"]=> string(6) "Israel" } [18]=> array(1) { ["country"]=> string(5) "Italy" } [19]=> array(1) { ["country"]=> string(5) "Japan" } [20]=> array(1) { ["country"]=> string(5) "Korea" } [21]=> array(1) { ["country"]=> string(6) "Kuwait" } [22]=> array(1) { ["country"]=> string(5) "Malta" } [23]=> array(1) { ["country"]=> string(8) "Mongolia" } [24]=> array(1) { ["country"]=> string(11) "Netherlands" } [25]=> array(1) { ["country"]=> string(6) "Norway" } [26]=> array(1) { ["country"]=> string(8) "Pakistan" } [27]=> array(1) { ["country"]=> string(6) "Poland" } [28]=> array(1) { ["country"]=> string(7) "Romania" } [29]=> array(1) { ["country"]=> string(6) "Russia" } [30]=> array(1) { ["country"]=> string(9) "Singapore" } [31]=> array(1) { ["country"]=> string(8) "Slovakia" } [32]=> array(1) { ["country"]=> string(12) "South Africa" } [33]=> array(1) { ["country"]=> string(13) "South America" } [34]=> array(1) { ["country"]=> string(5) "Spain" } [35]=> array(1) { ["country"]=> string(6) "Sweden" } [36]=> array(1) { ["country"]=> string(11) "Switzerland" } [37]=> array(1) { ["country"]=> string(6) "Taiwan" } [38]=> array(1) { ["country"]=> string(10) "Tajikistan" } [39]=> array(1) { ["country"]=> string(2) "UK" } [40]=> array(1) { ["country"]=> string(20) "United Arab Emirates" } [41]=> array(1) { ["country"]=> string(24) "United States of America" } [42]=> array(1) { ["country"]=> string(7) "Vietnam" } } </code>