搜尋陣列一個特定值後，怎麼取代掉

搜尋陣列一個特定值後，如何取代掉?

$fruit = "banana";   
$fruits = array("apple","banana","orange");   
if( in_array($fruit,$fruits) ) {
       //符合條件
       //如何把$fruits的"banana"改成"pear"?
}

------解決思路----------------------
本帖最後由 xuzuning 於 2015-03-19 15:27:56 編輯

$fruit = "banana";   
$fruits = array("apple","banana","orange");   
if( in_array($fruit,$fruits) ) {
  $fruits[array_search($fruit, $fruits)] = "pear";
}
print_r($fruits);

Array
(
    [0] => apple
    [1] => pear
    [2] => orange
)

對於這種需求，一般就不必先用 in_array 檢查了

$fruit = "banana";   
$fruits = array("apple","banana","orange");   
if(false !== ($t = array_search($fruit, $fruits)) ) {
  $fruits[$t] = "pear";
}
print_r($fruits);

