Question

多维数组中我的数组的所有值都包含一个变量+ string。

如何在我的示例中更改array[2]和array[3]的所有值？我想用$var更改名为$var2的变量，并在$between和字符串之间放置另一个名为$var2的变量。

实施例

$var = "start-";
$array = array
  (
  array("{$var}end1a","{$var}end2a","{$var}end3a"),
  array("{$var}end1b","{$var}end2b","{$var}end3b"),
  array("{$var}end1c","{$var}end2c","{$var}end3c")
  );

    $var2 = "new-start-";
    $between = "between-";

结果

$array[2]=array("{$var2}{$between}end1","{$var2}{$between}end2","{$var2} {$between}end3");
$array[3]=array("{$var2}{$between}end1","{$var2}{$between}end2","{$var2} {$between}end3");

更新：首先我只有一维数组，而maxhud的答案对于这种情况来说是完美的。

Answer 1

$start = "start-";

$array = array(
    array($start."enda1", $start."enda2", $start."enda3"),
    array($start."endb1", $start."endb2", $start."endb3"),
    array($start."endc1", $start."endc2", $start."endc3")
);

$newStart = "new-start-";
$between = "between-";

$keys = array(2, 5);

foreach ($keys as $key) {
    foreach ($array[$key] as $key2 => $value) {
        $array[$key][$key2] = str_replace($start, $newStart.$between, $value);
    }
}

更改所有数组值

1 个答案: