PHP Delete Array repeat element function

Function Delsame (& $array)
{
$i = 0;
while (Isset ($array [$i]))
{
$j = $i + 1;
while (Isset ($array [$j]))
{
if ($array [$i] = = $array [$j])//If duplicate elements are found behind
{
Delmember ($array, $j); To remove it
$j--; Re-check to see if the elements that were filled are duplicates
}
$j + +;
}
$i + +;
}
}

function to delete a repeating element in an array

The code is as follows	Copy Code
Function Delmember (& $array, $id) { $size = count ($array); for ($i = 0; $i < $size-$id-1; $i + +) { $array [$id + $i] = $array [$id + $i + 1]; } Unset ($array [$size-1]); }

Use examples:

The code is as follows	Copy Code
$output = Array (1, 2, 2, ' www.111cn.net ', 5, 4, 4, 4, 2, 7, 5, 9, 10); Delsame ($output); while (the list ($key, $value) = each ($output)) { echo "$key: $value". <br> "; }

Method Two

The code is as follows	Copy Code
function Uniquearray ($array) { Get unique ELTs as keys in Assoc. Array For ($i =0, $n =count ($array, 1); $i < $n; $i) $u _array[$array [$i]] = 1; Copy keys to another array Reset ($u _array, 1); For ($i =0, $n =count ($u _array, 1); $i < $n; $i) { $unduplicated _array[] = key ($u _array, 1); Next ($u _array, 1); } return $unduplicated _array; }

Method Three

The code is as follows	Copy Code
$hills =array ("=>" "Data1", "second" => "" data1/">www.111cn.net", "third" => "data1"); $hills =array_flip ($hills); Restore Key Name $hills 1=array_flip (Array_flip ($hills));//Delete duplicates Print_r ($hills 1);

/*
Array Array_flip (array trans)
Array_flip () returns an inverted array, for example, the key name in trans becomes a value, and the value in trans is the key name.
Note that the value in trans needs to be able to be a valid key name, such as an integer or string. A warning is issued if the type of the value is not correct, and the problematic key/value pair will not be reversed.
If the same value occurs more than once, the last key name is the value, and all the others are lost.
Array_flip () If the failure returns false.

*/