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<!DOCTYPE html> <html> <body> <?php $a=array("Volvo"=>"XC90","BMW"=>"X5","Toyota"=>"Highlander"); print_r(array_keys($a,"Highlander")); ?> </body> <!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_array_keys2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:50:52 GMT --> </html>
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