获取在 php 中的第二个数组中具有键的数组元素
get array elements which have key in second array in php
我只需要在第二个数组的值中具有键的数组元素,使用最快的脚本。
$array_1 = array(
'ana' => 'are',
'du' => 34,
'bopq'=> "Ana are mere mereu",
13 => "OK"
);
$array_2 = array('du', 13);
$expected_array = array(
'du' => 34,
13 => "OK"
);
有比以下更快的解决方案:
$expected_array = array_intersect($array_1, array_combine($array_2, $array_2);
?
Array_intersect_key 就是您要找的。
$array_1 = array(
'ana' => 'are',
'du' => 34,
'bopq'=> "Ana are mere mereu",
13 => "OK"
);
$array_2 = array('du', 13);
$result = array_intersect_key($array_1, array_flip($array_2));
我只需要在第二个数组的值中具有键的数组元素,使用最快的脚本。
$array_1 = array(
'ana' => 'are',
'du' => 34,
'bopq'=> "Ana are mere mereu",
13 => "OK"
);
$array_2 = array('du', 13);
$expected_array = array(
'du' => 34,
13 => "OK"
);
有比以下更快的解决方案:
$expected_array = array_intersect($array_1, array_combine($array_2, $array_2);
?
Array_intersect_key 就是您要找的。
$array_1 = array(
'ana' => 'are',
'du' => 34,
'bopq'=> "Ana are mere mereu",
13 => "OK"
);
$array_2 = array('du', 13);
$result = array_intersect_key($array_1, array_flip($array_2));