我有一个函数应该接收一个数组数组，并将其拆分为一个数组，每个数组包含 100 个项目。问题是当我执行它时，在这种情况下，将 1137 个项目传递给它，返回数组有 12 个数组，除了最后一个之外都是空的。
这是代码：
$names_to_fetch_from_twitter = array (
array('screen_name' => 'acme', 'profiles_rownum' => 1, 'screen_name_rownum' => 1),
array('screen_name' => 'acme1', 'profiles_rownum' => 2, 'screen_name_rownum' => 2),
array('screen_name' => 'acme2', 'profiles_rownum' => 3, 'screen_name_rownum' => 3),
array('screen_name' => 'acme3', 'profiles_rownum' => 4, 'screen_name_rownum' => 4),
array('screen_name' => 'acme4', 'profiles_rownum' => 5, 'screen_name_rownum' => 5)
);
$names_to_fetch_from_twitter_organized = split_into_blokcs_of_3 ($names_to_fetch_from_twitter);
echo '<pre>';
print_r($names_to_fetch_from_twitter_organized);
echo '</pre>';
function split_into_blokcs_of_3 ($names_to_fetch_from_twitter)
{
$names_to_fetch_from_twitter_organized = array();
$count = 1;
$screen_names = array();
$profiles_row_nums = array();
$screen_name_rownums = array();
foreach ($names_to_fetch_from_twitter as $name_to_fetch_from_twitter) {
$screen_names[] = $name_to_fetch_from_twitter['screen_name'];
$profiles_row_nums[] = $name_to_fetch_from_twitter['profiles_rownum'];
$screen_name_rownums[] = $name_to_fetch_from_twitter['screen_name_rownum'];
$count++;
if ($count > 3) {
$count = 1;
$screen_names = array();
$profiles_row_nums = array();
$screen_name_rownums = array();
$names_to_fetch_from_twitter_organized[] =
package_into_array($screen_names,$profiles_row_nums,$screen_name_rownums,$names_to_fetch_from_twitter_organized);
}
}
if ($count > 1) {
$names_to_fetch_from_twitter_organized[] =
package_into_array($screen_names,$profiles_row_nums,$screen_name_rownums,$names_to_fetch_from_twitter_organized);
}
return $names_to_fetch_from_twitter_organized;
}
function package_into_array($screen_names,$profiles_row_nums,$screen_name_rownums,$names_to_fetch_from_twitter_organized)
{
$names_to_fetch_from_twitter_organized[] = array (
'screen_names' => implode (',',$screen_names),
'profiles_row_nums' => $profiles_row_nums,
'screen_name_rownums' => $screen_name_rownums
);
return $names_to_fetch_from_twitter_organized;
}
这是输出：
Array
(
[0] => Array
(
[0] => Array
(
[screen_names] =>
[profiles_row_nums] => Array
(
)
[screen_name_rownums] => Array
(
)
)
)
[1] => Array
(
[0] => Array
(
[0] => Array
(
[screen_names] =>
[profiles_row_nums] => Array
(
)
[screen_name_rownums] => Array
(
)
)
)
[1] => Array
(
[screen_names] => acme3,acme4
[profiles_row_nums] => Array
(
[0] => 4
[1] => 5
)
[screen_name_rownums] => Array
(
[0] => 4
[1] => 5
)
)
)
)
当我期待以下内容时：
Array
(
[0] => Array
(
[screen_names] => acme1,acme2,acme3
[profiles_row_nums] => Array
(
[0] => 1
[1] => 2
[2] => 3
)
[screen_name_rownums] => Array
(
[0] => 1
[1] => 2
[2] => 3
)
)
[1] => Array
(
[screen_names] => acme4,acme5
[profiles_row_nums] => Array
(
[0] => 1
[1] => 2
)
[screen_name_rownums] => Array
(
[0] => 1
[1] => 2
)
)
)
有任何想法吗？
解决方案：
我有几个错误：
- 在将数组包含在主数组中之前，我正在重置数组
- 我在主函数和辅助函数中都增加了数组。
这是正确的代码：
function split_into_blokcs_of_3 ($names_to_fetch_from_twitter)
{
$names_to_fetch_from_twitter_organized = array();
$count = 1;
$screen_names = array();
$profiles_row_nums = array();
$screen_name_rownums = array();
foreach ($names_to_fetch_from_twitter as $name_to_fetch_from_twitter) {
$screen_names[] = $name_to_fetch_from_twitter['screen_name'];
$profiles_row_nums[] = $name_to_fetch_from_twitter['profiles_rownum'];
$screen_name_rownums[] = $name_to_fetch_from_twitter['screen_name_rownum'];
$count++;
if ($count > 3) {
$names_to_fetch_from_twitter_organized =
package_into_array($screen_names,$profiles_row_nums,$screen_name_rownums,$names_to_fetch_from_twitter_organized);
$count = 1;
$screen_names = array();
$profiles_row_nums = array();
$screen_name_rownums = array();
}
}
if ($count > 1) {
$names_to_fetch_from_twitter_organized =
package_into_array($screen_names,$profiles_row_nums,$screen_name_rownums,$names_to_fetch_from_twitter_organized);
}
return $names_to_fetch_from_twitter_organized;
}