blocks|key|4841703|text|我认为当您选择两个复选框时，应该使用OR，因为您选择的字段有两个值。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4841704|++++$PropType1+=+"";
++++if($_GET['PT1']+==+"Condo")+{
++++++++$PropType1+.=+"(property_type+=+'Condo')+";
++++}

++++if($_GET['PT2']+==+"Single+Family")+{
++++++$PropType2+=+"";
++++++//+if+first+checkbox+"Condo"+is+selected+also,+add+OR
++++++if($_GET['PT1']+==+"Condo")+{
++++++++$PropType2+.=+"+OR+";
++++++}

++++++$PropType2+.=+"(property_type+=+'Single+Family')+AND+";
++++}
++++else+{
++++++if($_GET['PT1']+==+"Condo")+{
++++++++$PropType1+.=+"+AND+";
++++++}
++++}|code-block|syntax|javascript|4841705|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I believe you should use OR when you selected 2 checkboxes, since you are selecting a field with two values.

<pre><code> $PropType1 = "";
 if($_GET['PT1'] == "Condo") {
 $PropType1 .= "(property_type = 'Condo') ";
 }

 if($_GET['PT2'] == "Single Family") {
 $PropType2 = "";
 // if first checkbox "Condo" is selected also, add OR
 if($_GET['PT1'] == "Condo") {
 $PropType2 .= " OR ";
 }

 $PropType2 .= "(property_type = 'Single Family') AND ";
 }
 else {
 if($_GET['PT1'] == "Condo") {
 $PropType1 .= " AND ";
 }
 }
</code></pre>

blocks|key|4350155|text|考虑以下面的方式重写您是如何做到这一点的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4350156|html将为属性类型使用数组元素，以便更容易地添加新的属性类型。|4350157|<form+method="get"+action="page.php">
++++<ul>
++++++++<li><input+type="checkbox"+name="PT[]"+value="Condo">Condo</li>
++++++++<li><input+type="checkbox"+name="PT[]"+value="Single+Family">Single+Family</li>
++++</ul>
</form>|code-block|syntax|javascript|4350158|PHP被重新编写，允许在where子句中添加新内容，并添加其他允许的属性类型，而不需要太多的代码更改。|4350159|/**+this+will+ensure+that+it's+always+an+array+**/
$propertyTypes+=+array_key_exists('PT',+$_GET)+?+(is_array($_GET['PT'])+?+$_GET['PT']+:+[+$_GET['PT']+])+:+[];
/**+edit+this+to+add+more+options,+while+this+could+be+omitted+it+protects+you+against+sql+injection+or+searching+for+values+you+don't+want+searchable+**/
$allowedPropertyTypes+=+[+'Condo',+'Single+Family'+];
/**+this+will+be+the+property+types+that+match+from+the+selected+ones+**/
$selectedPropertyTypes+=+[];

$whereClause+=+[];

$whereClause[]+=+"listing_active+=+'yes'";

/**+find+the+selected+property+types+against+the+allowed+ones+**/
foreach($propertyTypes+as+$propertyType)+{
++++if+(true+===+in_array($propertyType,+$allowedPropertyTypes)+{
++++++++$selectedPropertyTypes[]+=+sprintf("'%25s'",+addslashes($propertyType));
++++}
}

/**+if+one+or+more+property+type+is+selected,+then+add+it+to+the+where+clause+**/
if+(sizeOf($selectedPropertyTypes)+>+0)+{
++++$whereClause[]+=+sprintf('property_type+IN+(%25s)',+implode(',',+$selectedPropertyTypes));
}

/**+build+the+final+sql+statement,+checking+to+make+sure+the+where+clause+has+at+least+one+element+**/
$sql+=+sprintf('SELECT+*+FROM+listingsTable+%25s;',+sizeOf($whereClause)+>+0+?+sprintf('WHERE+%25s',+implode('+AND+',+$whereClause)));+|4350160|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Q|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

consider rewriting how you are doing this in the following fashion.

the html will use an array element for the property types, for much easier addition of new property types

<pre><code>&lt;form method="get" action="page.php"&gt;
 &lt;ul&gt;
 &lt;li&gt;&lt;input type="checkbox" name="PT[]" value="Condo"&gt;Condo&lt;/li&gt;
 &lt;li&gt;&lt;input type="checkbox" name="PT[]" value="Single Family"&gt;Single Family&lt;/li&gt;
 &lt;/ul&gt;
&lt;/form&gt;
</code></pre>

The PHP is re-written to allow adding new stuff to the where clause and adding other allowed property types without much code change.

<pre><code>/** this will ensure that it's always an array **/
$propertyTypes = array_key_exists('PT', $_GET) ? (is_array($_GET['PT']) ? $_GET['PT'] : [ $_GET['PT'] ]) : [];
/** edit this to add more options, while this could be omitted it protects you against sql injection or searching for values you don't want searchable **/
$allowedPropertyTypes = [ 'Condo', 'Single Family' ];
/** this will be the property types that match from the selected ones **/
$selectedPropertyTypes = [];

$whereClause = [];

$whereClause[] = "listing_active = 'yes'";

/** find the selected property types against the allowed ones **/
foreach($propertyTypes as $propertyType) {
 if (true === in_array($propertyType, $allowedPropertyTypes) {
 $selectedPropertyTypes[] = sprintf("'%s'", addslashes($propertyType));
 }
}

/** if one or more property type is selected, then add it to the where clause **/
if (sizeOf($selectedPropertyTypes) &gt; 0) {
 $whereClause[] = sprintf('property_type IN (%s)', implode(',', $selectedPropertyTypes));
}

/** build the final sql statement, checking to make sure the where clause has at least one element **/
$sql = sprintf('SELECT * FROM listingsTable %s;', sizeOf($whereClause) &gt; 0 ? sprintf('WHERE %s', implode(' AND ', $whereClause))); 
</code></pre>

blocks|key|4350185|text|尝试亲吻法)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4350186|$setPropType+=+'';

if($_GET['PT1']+==+"Condo")+{
++++$setPropType+=+"(property_type+=+'Condo')+AND+";
}

if($_GET['PT2']+==+"Single+Family")+{
++++$setPropType+=+"(property_type+=+'Single+Family')+AND+";
}

if($_GET['PT1']+==+"Condo"+&&+$_GET['PT2']+==+"Single+Family")+{
++++$setPropType+=+"((property_type+=+'Condo')+OR+(property_type+=+'Single+Family'))+AND+";
}|code-block|syntax|javascript|4350187|UPD|offset|length|style|BOLD|4350188|它可以扩展到任意数量的预期属性。|4350189|$setPropType+=+'';
$props_expected+=+['Condo',+'Single+Family',+'Prop3',++'Prop4',++'Prop5',++'Prop6'];
$prop_array+=+[];

for+($i+=+1;+$i+<+6;+$i%2B%2B)+{
++++if($_GET['PT'.$i]+==+$props_expected[$i])+{
++++++++$prop_array[]+=+"(property_type+=+'".+$props_expected[$i]+."')";
++++}
}

$setPropType+=+implode("+OR+",+$prop_array);

if+($setPropType+!=+"")+$setPropType+=+"(".+$setPropType+")+AND+";|4350190|对不起，我现在没有能力检查它是如何工作的，但我希望这个想法是明确的。|4350191|entityMap^0|0|0|0|3|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|W|8|@$I|X|J|Y|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

Try KISS approach) 

<pre><code>$setPropType = '';

if($_GET['PT1'] == "Condo") {
 $setPropType = "(property_type = 'Condo') AND ";
}

if($_GET['PT2'] == "Single Family") {
 $setPropType = "(property_type = 'Single Family') AND ";
}

if($_GET['PT1'] == "Condo" &amp;&amp; $_GET['PT2'] == "Single Family") {
 $setPropType = "((property_type = 'Condo') OR (property_type = 'Single Family')) AND ";
}
</code></pre>

UPD

It may be extended to any number of expected properties

<pre><code>$setPropType = '';
$props_expected = ['Condo', 'Single Family', 'Prop3', 'Prop4', 'Prop5', 'Prop6'];
$prop_array = [];

for ($i = 1; $i &lt; 6; $i++) {
 if($_GET['PT'.$i] == $props_expected[$i]) {
 $prop_array[] = "(property_type = '". $props_expected[$i] ."')";
 }
}

$setPropType = implode(" OR ", $prop_array);

if ($setPropType != "") $setPropType = "(". $setPropType ") AND ";
</code></pre>

Sorry, I have no ability to check how it works right now, but I hope the idea is clear

I have a simple question regarding structuring MySQLi Querys with multiple inputs for the same Table Column. Basically, I want people to be able to show results for (1) and (2) vs. (1 and 2), but I keep running into issues.

HTML:

<pre><code>&lt;form method="get" action="page.php"&gt;
 &lt;ul&gt;
 &lt;li&gt;&lt;input type="checkbox" name="PT1" value="Condo"&gt;Condo&lt;/li&gt;
 &lt;li&gt;&lt;input type="checkbox" name="PT2" value="Single Family"&gt;Single Family&lt;/li&gt;
 &lt;/ul&gt;
&lt;/form&gt;
</code></pre>

PHP:

<pre><code>if($_GET['PT1'] == "Condo") {
 $PropType1 = "(property_type = 'Condo') AND ";
}

if($_GET['PT2'] == "Single Family") {
 $PropType2 = "(property_type = 'Single Family') AND ";
}

$setPropType = $PropType1 . $PropType2;
</code></pre>

MySQLi Statement:

<pre><code>$customSelectSQL = "SELECT * FROM $listingsTable WHERE $setPropType (listing_active = 'yes')";
</code></pre>

I'm having a problem where if they're BOTH checked, the query does nothing and I get zero results. But when they're individually selected it works great.

I think what's happening is the database is searching for Properties that equal both inputs, as opposed to equaling each input separately and returning each row for each separate input. Make sense?

I'm guessing it's a matter of encapsulation or something, but when I search for "MySQL SELECT Multiple" or "MySQLi encapsulation", I get a bunch of not-so-helpful examples.

Thanks in advance!

How to Search Multiple Inputs (Separately) Selected in HTML Checkboxes?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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关于为同一个表列构造多个输入的MySQLi查询，我有一个简单的问题。基本上，我希望人们能够显示(1)和(2)和(1和2)的结果，但我经常遇到问题。HTML:<form method="get" action="page.php"> <ul> <li><input type="checkbox" name="PT...

问如何搜索HTML复选框中选择的多个输入(单独)？
EN

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问如何搜索HTML复选框中选择的多个输入(单独)？EN