Remove an item from comma separated string using PHP

Sometimes we need to remove specific item from comma separated string. Here is a running PHP function to remove an item from a comma-separated string. The function will remove the selected item from the string and return the remaining parts of the string.

function removeItemString($str, $item) {
$parts = explode(',', $str);
while(($i = array_search($item, $parts)) !== false) {
return implode(',, $parts);

$mystring = 'cat,mouse,dog,horse';
$result_string = removeItemString($mystring, "mouse");
echo "Input String: ".$mystring;
echo “Output String: ".$result_string;

Input String: cat,mouse,dog,horse
Output String: cat,dog,horse

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