如何删除一个元素并用另一个数组替换？

Question

我需要找到并替换数组中的元素。有没有任何单一的PHP功能？

Answer 1

您可以简单地使用array_splice。

见例如

$input = array("red", "green", "blue", "yellow"); 
array_splice($input, -2, 1, array("orange", "maroon")); 
// $input is now array("red", "green", "orange", "maroon","yellow") 

Answer 2

我不知道寻找和数组代替任何简单的功能，但你总是可以这样做：

$key = array_search($oldValue, $myArray); 
if ($key) $myArray[$key] = $newValue; 

Answer 3

试试这个：

<?php 
$myArray = array("John","William","Henry","Tom","Peter"); 
$newArray = array_splice($myArray, 2, 1, "Susan"); 
foreach($myArray as $key => $value) { 
    echo "$key - $value <br />"; 
} 
?>