要优化 PHP 数组的初始化过程,可以采取以下几种方法:
$array = [
'key1' => 'value1',
'key2' => 'value2',
'key3' => 'value3',
];
$array = [
'key1' => [
'subkey1' => 'value1',
'subkey2' => 'value2',
],
'key2' => [
'subkey1' => 'value3',
'subkey2' => 'value4',
],
];
array_fill()
和 array_fill_keys()
可以用于创建填充了特定值的数组,而 array_merge()
和 array_merge_recursive()
可以用于合并多个数组。$array1 = array_fill(0, 5, 'value');
$array2 = array_fill_keys(['key1', 'key2', 'key3'], 'value');
$mergedArray = array_merge($array1, $array2);
$recursiveMergedArray = array_merge_recursive($array1, $array2);
class Data {
public $key1;
public $key2;
public $key3;
}
$data = new Data();
$data->key1 = 'value1';
$data->key2 = 'value2';
$data->key3 = 'value3';
function generateArray($length) {
for ($i = 0; $i < $length; $i++) {
yield ['key' => "value{$i}"];
}
}
$array = iterator_to_array(generateArray(10));
通过遵循这些建议,您可以优化 PHP 数组的初始化过程,使代码更加高效、可读和可维护。