编辑：问题已解决
我必须使用“loadColumn”作为第一个查询，并将“数组”更改为$ results。这就是全部！很高兴它现在正在工作。感谢所有答案:)我将在页面底部发布更新的代码。
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我想根据状态字段显示数据库中的某些值，该字段的值为“待定”。假设我在我的网站上提交了一份表格。它的“SubmissionId”为“50”。因此，诸如“Container1”，“Status1”，“Date1”，“BayanNo1”等多个值都可以具有SAME SubmissionId。
这是我编写的代码，但在运行页面时没有加载：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:local="http://schemas.android.com/apk/res-auto"
android:fitsSystemWindows="true"
android:id="@+id/top_parent"
android:layout_width="match_parent"
android:layout_height="match_parent">
<include
layout="@layout/Toolbar"
android:id="@+id/toolbar_content" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white"
android:layout_below="@id/toolbar_content"
android:id="@+id/gridLayout1">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/black"
android:id="@+id/cover_layout"
android:layout_marginBottom="0.0dp">
<ImageView
android:layout_width="500dp"
android:layout_height="400dp"
android:id="@+id/imageview_cover"
android:background="@color/gray"
android:layout_centerHorizontal="true"
android:layout_centerInParent="true"
android:layout_centerVertical="true" />
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout1"
android:layout_alignParentRight="true"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true">
<TextView
android:id="@+id/textview_title"
android:gravity="left"
android:textColor="@color/white"
android:textStyle="bold"
android:text="Audio Book Title"
android:textSize="@dimen/text_very_huge"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:singleLine="true" />
<TextView
android:id="@+id/textview_author"
android:gravity="left"
android:textColor="@color/colorAccent"
android:text="Author"
android:textSize="@dimen/text_small"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:singleLine="true" />
</LinearLayout>
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/cover_layout"
android:id="@+id/relativeLayout2"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_alignParentLeft="true"
android:paddingBottom="8dp"
android:paddingTop="8dp"
android:background="@color/white"
android:layout_marginTop="0.0dp">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/relativeLayout3"
android:layout_alignParentRight="true"
android:layout_alignParentLeft="true"
android:layout_marginTop="@dimen/element_margin_tiny"
android:layout_marginBottom="@dimen/element_margin_tiny">
<TextView
android:text="Position"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textview_position"
android:gravity="center"
android:layout_marginLeft="@dimen/element_margin_large"
android:textColor="@color/black"
android:layout_centerVertical="true" />
<SeekBar
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/textview_position"
android:id="@+id/player_seekbar"
android:layout_toLeftOf="@+id/textview_duration"
android:clickable="true"
style="@style/GreenSeekBar"
android:layout_centerVertical="true" />
<TextView
android:text="Duration"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textview_duration"
android:layout_alignParentRight="true"
android:layout_alignBottom="@+id/seekBar1"
android:layout_alignTop="@+id/seekBar1"
android:gravity="center"
android:layout_marginRight="@dimen/element_margin_large"
android:textColor="@color/black"
android:layout_centerVertical="true" />
</RelativeLayout>
<LinearLayout
android:layout_width="match_parent"
android:id="@+id/relativeLayout5"
android:layout_below="@id/relativeLayout3"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true">
<ToggleButton
android:src="@drawable/toggle_sound"
android:id="@+id/btnSound"
android:layout_width="30dp"
android:layout_height="30dp"
android:textOff=" "
android:textOn=" "
android:layout_weight="2"
android:scaleType="center"
android:paddingLeft="@dimen/element_margin_tiny" />
<ImageButton
android:layout_width="40dp"
android:layout_height="40dp"
android:id="@+id/btnPrevious"
android:background="@null"
android:src="@drawable/button_previous"
android:scaleType="center"
android:layout_toRightOf="@+id/btnSound"
android:layout_weight="2" />
<ToggleButton
android:layout_width="50dp"
android:layout_height="50dp"
android:id="@+id/btnPlayPause"
android:src="@drawable/togglebutton_playpause"
android:layout_centerVertical="true"
android:scaleType="center"
android:textOff=" "
android:textOn=" "
android:layout_toRightOf="@+id/btnPrevious"
android:layout_toLeftOf="@+id/btnNext"
android:layout_weight="2" />
<ImageButton
android:layout_width="40dp"
android:layout_height="40dp"
android:id="@+id/btnNext"
android:background="@null"
android:src="@drawable/button_next"
android:scaleType="center"
android:layout_centerVertical="true"
android:layout_toLeftOf="@+id/btnRepeat"
android:layout_weight="2" />
<ToggleButton
android:src="@drawable/toggle_playlist"
android:id="@+id/btnRepeat"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_centerVertical="true"
android:textOff=" "
android:textOn=" "
android:scaleType="center"
android:layout_weight="2" />
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
以下是更新且有效的代码：
<?php
$db = JFactory::getDbo();
$db->getQuery(true);
$db->setQuery("SELECT `SubmissionId` FROM `jos_rsform_submission_values` WHERE `FieldName` = \"Status1\" AND `FieldValue` = \"Pending\"");
$results = $db->loadObjectList();
//First query which gets the SubmissionId where "Status" is "Pending"
//Trying to add these SubmissionId's into an array (don't know if correct or not)
$arr = [$results];
//Second query which must display the ContainerNumber based on SubmissionId (Some values are from the same form that the user submitted, that is why the Status and ContainerNumber have the same SubmissionId
$db->getQuery(true);
$db->setQuery("SELECT `SubmissionId`, `FieldValue` FROM `jos_rsform_submission_values` WHERE `FieldName` = \"Container1\" AND `SubmissionId` IN '" .$arr. "' ");
$result = $db->loadObjectList();
foreach($result as $value) {
foreach($value as $key => $data) {
echo $data."<br />";
}
}
?>
答案 0 :(得分：1)
SQL中IN的语法是：select * from foo where bar in ('1','2', '3')
$db = JFactory::getDbo();
$db->getQuery(true);
$db->setQuery("SELECT `SubmissionId` FROM `jos_rsform_submission_values` WHERE `FieldName` = \"Status1\" AND `FieldValue` = \"Pending\"");
$results = $db->loadObjectList();
//First query which gets the SubmissionId where "Status" is "Pending"
//Trying to add these SubmissionId's into an array (don't know if correct or not)
$arr = array_map($db->quote, $results));
//Second query which must display the ContainerNumber based on SubmissionId (Some values are from the same form that the user submitted, that is why the Status and ContainerNumber have the same SubmissionId
$db->getQuery(true);
$db->setQuery("SELECT `SubmissionId`, `FieldValue` FROM `jos_rsform_submission_values` WHERE `FieldName` = \"Container1\" AND `SubmissionId` IN (" .implode(',', $arr). ") ");
$result = $db->loadObjectList();
foreach($result as $value) {
foreach($value as $key => $data) {
echo $data."<br />";
}
}
代码使用array_map引用数组，并在IN表达式中使用它。
答案 1 :(得分：0)
尝试time中的in_array()。我希望它能解决您的问题。