php - How can I get in_array() case-insensitive? -


using code check if value exists in array array may contain values in uppercase. lookup value in lowercase. cannot control array data dynamically generated database need solution ignore case (uppercase/lowercase).

if lookup value exists in array match regardless of case sensitivity.

if (in_array('lookupvalue', $array)) {     // }

output of var_dump($url);:

string(17) "www.paypal.com.au"

output of var_dump($sans);:

array(52) {   [0]=>   string(13) "www.paypal.at"   [1]=>   string(13) "www.paypal.be"   [2]=>   string(13) "www.paypal.ca"   [3]=>   string(13) "www.paypal.ch"   [4]=>   string(13) "www.paypal.cl"   [5]=>   string(13) "www.paypal.cn"   [6]=>   string(16) "www.paypal.co.id"   [7]=>   string(16) "www.paypal.co.il"   [8]=>   string(16) "www.paypal.co.in"   [9]=>   string(19) "www.paypal-mena.com"   [10]=>   string(16) "www.paypal.co.nz"   [11]=>   string(16) "www.paypal.co.th"   [12]=>   string(16) "www.paypal.co.uk"   [13]=>   string(16) "www.paypal.co.za"   [14]=>   string(17) "www.paypal.com.ar"   [15]=>   string(17) "www.paypal.com.au"   [16]=>   string(17) "www.paypal.com.br"   [17]=>   string(17) "www.paypal.com.hk"   [18]=>   string(17) "www.paypal.com.mx"   [19]=>   string(17) "www.paypal.com.my"   [20]=>   string(17) "www.paypal.com.sa"   [21]=>   string(17) "www.paypal.com.sg"   [22]=>   string(17) "www.paypal.com.tr"   [23]=>   string(17) "www.paypal.com.tw"   [24]=>   string(17) "www.paypal.com.ve"   [25]=>   string(13) "www.paypal.de"   [26]=>   string(13) "www.paypal.dk"   [27]=>   string(13) "www.paypal.es"   [28]=>   string(13) "www.paypal.eu"   [29]=>   string(13) "www.paypal.fi"   [30]=>   string(13) "www.paypal.fr"   [31]=>   string(13) "www.paypal.ie"   [32]=>   string(13) "www.paypal.it"   [33]=>   string(13) "www.paypal.jp"   [34]=>   string(13) "www.paypal.lu"   [35]=>   string(13) "www.paypal.nl"   [36]=>   string(13) "www.paypal.no"   [37]=>   string(13) "www.paypal.ph"   [38]=>   string(13) "www.paypal.pl"   [39]=>   string(13) "www.paypal.pt"   [40]=>   string(13) "www.paypal.ru"   [41]=>   string(13) "www.paypal.se"   [42]=>   string(13) "www.paypal.vn"   [43]=>   string(21) "www.thepaypalblog.com"   [44]=>   string(25) "www.paypal-deutschland.de"   [45]=>   string(13) "www.paypal.co"   [46]=>   string(17) "www.paypal.com.pe"   [47]=>   string(17) "www.paypal.com.pt"   [48]=>   string(20) "www.paypal-france.fr"   [49]=>   string(20) "www.paypal-latam.com"   [50]=>   string(23) "www.paypal-marketing.pl"   [51]=>   string(15) "demo.paypal.com" }

well if can make sure, search word in lowercase, put array in lower case looping through values array_map() , putting them in lowercase strtolower(), e.g.

if (in_array('lookupvalue', array_map("strtolower", $array))) { // }

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