我正在處理一個多維數組,其中將包含可變數目的空對象。我寫了一個腳本來簡單地取消設置()空的,並且它工作正常。但是,即使沒有echo()函數,運行循環時也會打印非空值,而我似乎無法弄清楚原因。在foreach循環中使用無命令回顯數組項目
,將通過我的循環使用運行的陣列的一個例子:
Array
(
[0] => Group Object
(
[_title] => <strong>Abdomen</strong><ul>
[_issues] => <li><strong>Ascites</strong>: 1</li><li><strong>Blood Clot</strong>: 2</li>
)
[1] => Group Object
(
[_title] => <strong>Air Sac</strong><ul>
[_issues] => <li><strong>Cloudy</strong>: 1</li>
)
[2] => Group Object
(
[_title] => <strong>Beak Treatment</strong><ul>
[_issues] => <li><strong>Severe</strong>: 3</li>
)
[3] => Group Object
(
[_title] =>
[_issues] =>
)
[4] => Group Object
(
[_title] =>
[_issues] =>
)
[5] => Group Object
(
[_title] => <strong>Crop</strong><ul>
[_issues] => <li><strong>Impacted</strong>: 2</li>
)
[6] => Group Object
(
[_title] => <strong>Feathering</strong><ul>
[_issues] => <li><strong>Soiled</strong>: 1</li>
)
[7] => Group Object
(
[_title] => <strong>Feet</strong><ul>
[_issues] => <li><strong>Swollen</strong>: 1</li>
)
[8] => Group Object
(
[_title] =>
[_issues] =>
)
[9] => Group Object
(
[_title] =>
[_issues] =>
)
[10] => Group Object
(
[_title] => <strong>Heart</strong><ul>
[_issues] => <li><strong>Compromised</strong>: 1</li>
)
[11] => Group Object
(
[_title] => <strong>Hock</strong><ul>
[_issues] => <li><strong>Clear Exudate</strong>: 2</li>
)
[12] => Group Object
(
[_title] =>
[_issues] =>
)
[13] => Group Object
(
[_title] =>
[_issues] =>
)
[14] => Group Object
(
[_title] =>
[_issues] =>
)
[15] => Group Object
(
[_title] => <strong>Kidney</strong><ul>
[_issues] => <li><strong>Injured</strong>: 2</li>
)
)
的foreach()循環該清除出空的對象陣列的內部:
foreach ($issues as $key => $link) {
if ($issues[$key] != '') {
unset($issues[$key]);
}
}
最後,循環運行時打印的輸出:
<strong>Abdomen</strong><ul>
<li><strong>Ascites</strong>: 1</li>
<li><strong>Blood Clot</strong>: 2</li>
<strong>Air Sac</strong><ul>
<li><strong>Cloudy</strong>: 1</li>
<strong>Beak Treatment</strong><ul>
<li><strong>Severe</strong>: 3</li>
<strong>Crop</strong><ul>
<li><strong>Impacted</strong>: 2</li>
<strong>Feathering</strong><ul>
<li><strong>Soiled</strong>: 1</li>
<strong>Feet</strong><ul>
<li><strong>Swollen</strong>: 1</li>
<strong>Heart</strong><ul>
<li><strong>Compromised</strong>: 1</li>
<strong>Hock</strong><ul>
<li><strong>Clear Exudate</strong>: 2</li>
<strong>Kidney</strong><ul>
<li><strong>Injured</strong>: 2</li>
顯然我只想要空的組ps被刪除,沒有任何要打印的東西。任何幫助表示讚賞。
這意味着,你需要向我們展示更多的代碼,根據您提供的代碼,這是不可能會有一個輸出... – HamZa