Write test and debug if necessary PHP scripts for the specif

Write, test, and debug (if necessary) PHP scripts for the specifications that follow.

9.3 Parameter: An array of strings.

Return Value: A list of the strings that occur most frequently in the parameter array.

function mostoccurences($strs){

/*Individual words will be stored here*/
$word = arr();

/*Multiple strings will be processed here*/
if(is_arr($strs))
foreach($strs as $str)
$word = arr_merge($word, explode(\" \", $str));

/*This is for preparing single string*/
else
$word = explode(\" \",$strs);

/*arr is used to count words*/
$index = arr();

/*Aggregate word counters*/
foreach($word as $word)

/*Increment count or create if it doesn\'t exist*/
(isset($index[$word]))? $index[$word]++ : $index[$word] = 1;

/*Sort arr hy highest value and */
arsort($index);

/*Return the word*/
return key($index);
}

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