我有很多变量要存储到数组中
$colors = array("red", "green", "blue", "yellow");
foreach ($colors as $value) {
echo "$value <br>";
}
现在我想再次将$value存储到数组中
p.s:看起来很愚蠢,但这是教育目的,请不要告诉我为什么我已经在做$colors数组是退出
$colors = array("red", "green", "blue", "yellow");
foreach ($colors as $key => $value) {
$value = strtoupper($value);
$colors[$key] = $value;
}