搜索阵列一个特定值后，如何取代掉?
$fruit = banana;
$fruits = array(apple,banana,orange);
if( in_array($fruit,$fruits) ) {
//符合条件
//如何把$fruits的banana改成pear?
}

------解决思路----------------------
本帖最后由 xuzuning 于 2015-03-19 15:27:56 编辑
$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
)

对于这种需求，一般就不必先用 in_array 检查了$fruit = banana;
$fruits = array(apple,banana,orange);
if(false !== ($t = array_search($fruit, $fruits)) ) {
$fruits[$t] = pear;
}
print_r($fruits);