Remove Duplicates from PHP Array

Before you write a quickie function to remove duplicates from a PHP array, check out the PHP array_unique() function. I was about to write a function to de-dupe an array when I remembered that PHP has a builtin function to do just that.

Here is a simple example:

$dirty = array('brad','jeff','bev','john','kirsten','brad');
$clean = array_unique($dirty);

Alternatively, if you just want to know if there are duplicates in an array and not remove them, you could do something like this:

function isUnique($array){

return (array_unique($array) != $array);

}

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Published:: 10.19.07 / 4pm

Category:: PHP

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vivek 9.30.09 / 4am

it’s help

thank’s
Smartness 11.21.09 / 6am

Thanks! Helped me too!
Techie Talks 11.25.09 / 2pm

Thanks for clearing it out. More power to the webmaster
bong0 1.4.10 / 11am

thank’s
Jhon 1.13.10 / 8am

thanks, i did know php had such a function (among many others)

http://php.net/manual/en/function.array.php

but could not remember the name
AmilaDG 2.25.10 / 1pm

Thanks. short n sweet :)

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