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How to delete duplicate elements in an array in php: You can use the php built-in function array_unique() to delete. This function removes duplicate values from an array and returns the filtered array. If two or more array values are the same, only the first value is retained and the other values are removed.
array_unique() function is used to remove duplicate values from the array and return the filtered array. If two or more array values are the same, only the first value is retained and the other values are removed.
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Grammar:
array_unique(array)
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Code implementation:
<?php $a=array("a"=>"red","b"=>"green","c"=>"red"); print_r(array_unique($a)); ?>
Output result:
Array ( [a] => red [b] => green )
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